Homeostasis and Cell Transport 1. What does selective transport or selectively permeable mean? 2. What types of organic molecules make up a cell membrane? 3. What is the function of the cell membrane? 4. What is diffusion? 5. What is facilitated diffusion? 6. What is equilibrium? Give exam
Answer:
Huda is so tired and feels like she is going to fall asleep any second. What type of brain wave is MOST likely predominant in this scenario?
A.
delta
B.
beta
C.
alpha
D.
theta
Theta (4-8 Hz) type of brain wave is MOST likely predominant in this scenario of Huda is so tired and feels like she is going to fall asleep any second.
What are brain waves?The oscillating electrical voltage in the brain which are just a few millionths of a volt is termed as Brain Waves.
They are of 4 major types that are as follows:
Gamma (greater than 30Hz) BETA (13-30Hz) ALPHA (8-12 Hz)THETA (4-8 Hz) and DELTA(> 4 Hz).Now, Our Brain Uses 13Hz (i.e. high alpha or low beta) that is for active intelligence in our mind.
Gamma brain waves are the fastest brain waves produced inside our brain they are used in problem solving.Theta brain waves are used in slow activities such as Sleeping, daydreaming, intuition, etc.
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Match each sponge cell to its description.
Egg and sperm cell => Cells involved in sexual reproduction
Amboid cells => Cells found within the mesohyl of the sponge
Epithelial cells=> Flattened cells that surround the body of the sponge
choanocytes =>Flaggelated, collar cells
The sperm floats through the water before eventually passing through a pore into a sponge cell of the same species and being carried to the female eggs.
Some animals return the fertilised eggs to the water after fertilisation. In the case of other species, the eggs stay in the sponge cell until the larvae emerge. One of the tiniest cells in the male body is the sperm. They consist of a lengthy tail, some mitochondria, and a tiny nucleus with little cytoplasm. Unlike the spherical form of the egg cell, they are straight. A sperm cell has a head, a middle section, and a tail.
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Label each one for brainiest
Answer:
this is a image of lung
Explanation:
What are the 10 different methods used to control hazards and risk?
The various methods to control hazards and risks are using standard tools and equipment, working in the presence of expert and working in authorized labor conditions.
Hazards are the unintentional accidents which may cause loss of life and property. Risks are the abrupt conditions which occur and has the potential to cause damage.
The ten different ways to control hazards and risks are:
Always using hard hats, helmets or gloves while working.Using proper ventilation, well illuminated lights while working.Using tools and equipment in areas where manual work is risky.Always working under the expert contractor.Using standard quality products.Avoid machinery which is under repair. Using safety measures while site is under construction by using sign boards and flash light.Pasting emergency contacts for quick use.Assigning a doctor and ambulance at work site to ensure quick redressal.Avoid working in isolation or areas of explosive danger.Learn more about hazards at:
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why moderate fever is nessesary for health
Answer:
yes moderate fever is necessary
Explanation:
You get a fever because your body is trying to kill the virus or bacteria that caused the infection. Most of those bacteria and viruses do well when your body is at your normal temperature. But if you have a fever, it is harder for them to survive. Fever also activates your body's immune system.
How are chromosomes passed down to offspring in sexually reproducing organisms?(1 point).
The male and female reproductive cells used in sexual reproduction are referred to as gametes, or just sperm and eggs. The number of chromosomes in each gamete is half that of the organism's other cells. Genetic material is combined when an egg and a sperm come together, a process known as fertilization.
Animals that reproduce sexually have gametes that contain half as many chromosomes as the parents. As a result, when male and female gametes combine during fertilization, the resulting progeny will have the same quantity of DNA or chromosomes as their parents.
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which one of the following is true of trnas? a trnas carry special sequences known as codons. b all of the above. c each trna binds a particular codon. d none of the above. e there are four types of trna. f trnas are double-stranded.
All of the following statements are true about tRNA:
a) tRNA carries special sequences known as codons.
b) Each tRNA binds a particular codon.
c) There are four types of tRNA.
What is a tRNA?tRNA, or transfer RNA, is a small RNA molecule that plays a crucial role in the process of protein synthesis in cells. Protein synthesis occurs in the ribosomes, which are the site of translation in cells. During translation, the information stored in the DNA code is used to synthesize proteins.
tRNA plays a key role in this process by acting as a bridge between the information stored in the DNA code and the sequence of amino acids that make up a protein. Each tRNA molecule carries a specific amino acid and is able to "read" a particular sequence of nucleotides, known as a codon, in the RNA molecule produced during transcription. The tRNA molecule brings the corresponding amino acid to the ribosome, where it is added to the growing protein chain.
In this way, tRNA helps to translate the genetic code stored in DNA into the sequence of amino acids that make up proteins. This process is essential for the proper functioning of cells and is vital for the proper development and function of organisms.
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Drag each tile to the correct box.
Arrange the steps in the order they in occur during the development of neurons.
A) Signaling Factors cause precursor neurons to produce neurons.
B) Stem cells arise from the inner mass of cells.
C)Genes that lead to the production of undifferentiated precursor neurons are activated.
D) Signaling factors trigger differentiation in stem cells.
Answer:
Stem cells arise from the inner mass of cells.Explanation:
The steps in the development of neurons must occur in a specific order for the process to be successful. In the first step, stem cells arise from the inner mass of cells. These stem cells are unspecialized cells that have the potential to develop into a wide range of different cell types.
Next, genes that lead to the production of undifferentiated precursor neurons are activated. These genes provide the instructions for the stem cells to begin developing into neurons.
Once the precursor neurons have been produced, signaling factors trigger their differentiation. This means that the precursor neurons become specialized and begin to develop into specific types of neurons.
Finally, signaling factors cause the precursor neurons to produce neurons, completing the development process. This is a critical step because it ensures that the neurons are able to function properly and play their role in the nervous system.
What does Napoleon blaming Snowball represent?
Napoleon blaming Snowball represents the use of fear and propaganda to control the population.
What is population?Population is the total number of people, animals or other organisms residing in a particular geographic area. It is usually expressed as a quantity per unit area or unit volume. Population density, which is the number of individuals per unit area, is a key factor in determining the size and health of a particular ecosystem. Population dynamics are an important factor in the development of society, as they influence the availability of resources and services, as well as the level of pollution.
By making Snowball seem like an enemy of the people, Napoleon is able to manipulate the animals into believing his own version of the truth and following his leadership. This is a common tactic used by authoritarian regimes to maintain control.
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In which two ways do plant cells use the sugar made in photosynthesis?
A.
To store energy for life processes
B.
To make more complex sugar molecules
C.
To produce carbon dioxide
D.
To produce hydrogen ions
Answer:
the two ways in which plants use sugar made during photosynthesis are A and B.
Explanation:
A. plants need further energy to carry out their major functions like - respiration and transpiration for which they need sugar obtained during photosynthesis .
B. plants need starch and cellulose as a food which are also sugar products.
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The two ways in which plant cells use sugar made in photosynthesis are to store energy for life processes and to make complex sugar molecules. The correct options are A and B.
Plant cells utilize the sugars produced in photosynthesis in various ways.
They store some of the sugar as energy reserves for life processes. This storage is often in the form of starch or other complex carbohydrates, which can be broken down later to release energy as needed.
The sugars are also used to synthesize more complex molecules. These include polysaccharides like cellulose, which form the structural components of the cell wall, as well as other carbohydrates such as sucrose, which are used for transport and energy storage within the plant.
During photosynthesis, plants use carbon dioxide from the environment along with sunlight and water to produce sugars.
Hydrogen ions are involved in certain cellular processes, such as ATP synthesis during cellular respiration, but their production is not directly linked to the utilization of sugars.
Thus, the correct options are A and B.
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What process is unique to meiosis?
Process of crossing over is unique to meiosis.
Crossover refers to the exchange of genetic material or chromosome segments between non-sister chromosomes during meiosis. This occurs between homologous regions of matched chromosomes and during chromosome exchange.
The crossover or recombination of genetic material between pairs of chromosomes occurs during meiosis I but not during meiosis II. This occurs during meiosis I during a long and complex prophase I, which is divided into five sub-phases. The offspring differ due to the exchange of chromosomal material. This is very important in the evolutionary process. The crossover of frequencies helps to create genetic maps.
Crossbreeding is the process by which germline genetic material is exchanged. The tendency for genes to stick together in a chromosome is called gene linkage.
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plant cells are protected from the harmful effects of excessive light energy and reactive oxidative molecules by
Plant cells are protected from the harmful effects of excessive light energy and reactive oxidative molecules by Carotenoids.
Along with chlorophylls, carotenoids are essential pigments in photosynthetic organs.
The plant is shielded from UV (ultraviolet) damage by carotenoids. They actually prevent UV-induced free radical formation in the photosynthetic membrane, making them antioxidants and protecting agents. In PSII complexes, their ability to quench 3Chl and 1O2 has been demonstrated in vitro. In non-photosynthetic plant organs, carotenoids also play roles as photo protectors, antioxidants, color attractants, and plant hormone precursors.
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Mitosis occurs in somatic cells. When a liver cell divides to create new liver cells it will create _.
Answer:
identical daughter cells
Explanation:
Mitosis occurs in somatic cells. When a liver cell divides to create new liver cells it will create identical daughter cells.
Is greater than minimal risk research allowed to include pregnant women?
The study must be sufficiently advanced to have some level of safety data in order for it to be considered for research that carries more than minimum risk but has the potential to directly benefit the participants who are pregnant or the fetus.
Can studies that include pregnant people be exempted?The Federal Research Regulations, Subpart B has these particular safeguards. In addition to meeting the standard requirements for approval, the IRB may only authorize research involving pregnant people or fetuses if all conditions for the study (described below) are satisfied.The study must be sufficiently advanced to have some level of safety data in order for it to be considered for research that carries more than minimum risk but has the potential to directly benefit the participants who are pregnant or the fetus.The study must be sufficiently advanced to have some level of safety data in order for it to be considered for research that carries more than minimum risk but has the potential to directly benefit the participants who are pregnant or the fetus.To learn more about Subpart B refer to:
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slay, MC hat is the purpose of mitosis? How many cells are made in mitosis? How many chromosomes does each to dividresor obega lasis, cell have at the end of mitosis? 3. On the bottom of this page, Draw each of the stages of mitosis, labeling each stage and any important features that are visible (chromosomes, centrioles, spindle fibers, nuclear envelope/membrane, etc...) 4. Distinguish between diploid and haploid cells. 5. What is cancer and how is it related to the cell cycle 5. What is the difference between asexual and sexual reproduction? Give examples of each.
Answer:
The purpose of mitosis is to produce two genetically identical daughter cells from a single parent cell. During mitosis, the genetic material of the parent cell is equally divided into the two daughter cells. Each daughter cell receives a complete copy of the genetic material, which consists of a specific number of chromosomes. The number of chromosomes in a cell is determined by the organism it belongs to. For example, human cells have 46 chromosomes, while fruit fly cells have only 4 chromosomes.What is the process of protein synthesis step by step?
Protein synthesis is a complex and essential process in the human body, responsible for creating proteins which are essential for the growth, repair and maintenance of cells.
The process involves several steps, beginning with the transcription of DNA, followed by translation of the messenger RNA (mRNA) into a polypeptide chain, before finally being modified into a functional protein. Here we will take a look at each step in the process of protein synthesis.
1. Transcription: mRNA is created from DNA in the nucleus of the cell.
2. mRNA Migration: The mRNA leaves the nucleus and travels to a ribosome in the cytoplasm of the cell.
3. tRNA Anticodon Recognition: Transfer RNA (tRNA) molecules attach to the mRNA at the ribosome. Each tRNA carries an amino acid that corresponds to the mRNA codon.
4. Peptide Bond Formation: The ribosome links the amino acids together to form a peptide chain.
5. Protein Elongation: tRNA molecules continue to bring amino acids to the ribosome and the peptide chain grows until the ribosome encounters a stop codon on the mRNA.
6. Protein Release: The ribosome releases the completed protein.
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What structure produces a thick secretion that can become gritty overnight, producing what is commonly called "sleep in the eyes"?
a. lacrimal apparatus
b. lacrimal caruncle
c. medial canthus
d. conjunctiva
The lacrimal caruncle structure produces a thick secretion that can become gritty overnight, resulting in what is commonly referred to as sleep in the eyes.
Eye discharge, or "sleep" in your eyes, is indeed a combination of mucus, oil, skin cells, and other debris that accumulates inside the corner of your eye while you sleep. Depending on how much of the liquid with in discharge has evaporated, it can be moist and sticky or dry and crusty. Eye mattering, ocular boogers, eye gunk, eye pus, and goopy eyes are other slang terms for eye discharge. Eye discharge, also known as "rheum," serves a protective function by removing waste products but also possibly hazardous debris from tear film and the anterior surface of your eyes.
The lacrimal caruncle is a small, pink, globular spot at the inner corner of the eye, also known as the medial canthus. It has both oil glands and sweat glands. The whitish material which sometimes accumulates in that region is from these glands. The tarsal plate is made up of connective tissue that supports the eyelids.
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Is TAA a stop codon?
Yes, TAA is a major stop codon.
A codon is a three- nucleotide or a trio chain set up on the mRNA that ciphers for a certain amino acid during paraphrasing. A chain of three successive nucleotides within a deoxyribonucleic acid or RNA reinforcement that ciphers for a particular amino acid. Certain codons signal the beginning or ending of paraphrase. These are known as the beginners or stop( or termination) codons.
A stop codon is a chain of three nucleotides( a three- nucleotide) in deoxyribonucleic acid or RNA( particularly mRNA) that signals a start to protein amalgamate within the cell. There are 64 various typesof trinucleotide codons, out of which 61 specify amino acids and 3 are there to signify stop codons( i.e., UAA, UAG and UGA).
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Does Claire have PTSD?
Claire begins to experience memories of World War II as our favorite Scottish highlanders get ready for their fight against the British she didn't have PTSD.
Show creator Matthew Roberts said, "I was always interested in what happened to her throughout the war. The details of Claire's WWII experience are sparsely scattered among the volumes.Because Claire's journey is primarily internal in the books, Roberts tried to come up with a way to depict this without a lot of voiceover. You might question why it's affecting her now, given how little she's even spoken about her time serving as a war nurse, especially since she didn't have PTSD then. (Or what she may have called shell shock.
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What is the correct order of the steps of the Calvin cycle?
Answer: Carbon Fixation, Reduction and regeneration
a 45 year old man had coronary artery stents placed 2 days ago. today he is in severe distress
Bases on the initial condition of the patient it can be suspected that the cardiac arrest was caused due to: Acute coronary syndrome.
Cardiac arrest is the sudden loss of the functioning of heart, breathing as well as consciousness. It occurs dur to malfunctioning in the electrical system of the heart. The general symptoms that may indicate arrival or cardiac arrest are: Chest discomfort, Shortness of breath, Weakness, palpitations, etc.
Acute coronary syndrome is the the collection of various symptoms that may cause a reduced blood flow into the heart. Heart attack and unstable angina are the part of the acute coronary syndrome.
The given question is incomplete, the complete question is:
A 45-year-old man had coronary artery stents placed 2 days ago. Today, he is in severe distress and is reporting "crushing" chest discomfort. He is pale, diaphoretic, and cool to the touch. His radial pulse is very weak, blood pressure is 64/40 mm Hg, respiratory rate is 28 breaths/min, and oxygen saturation is 89% on room air. When applied, the cardiac monitor initially showed ventricular tachycardia, which then quickly changed to ventricular fibrillation. Based on this patient's initial presentation, which condition do you suspect led to the cardiac arrest?
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root systems are classified as fibrous root systems and taproot systems. which property distinguishes the two types of root systems from each other?
Taproot system :-
Dicots frequently have a taproot system, in which the roots grow from the radicle (embryonic root). With secondary, tertiary, and additional lateral branches becoming visible, these develop into the plant's main root.Deep-rooted, underground, and persistent roots are just a few of the characteristics of taproot. The single, lengthy primary root of a taproot is where secondary, tertiary, and rootlets are evident.Plants with tap roots may be able to endure drought conditions and aid in securing the roots of other plants in the soil.Carrots, radishes, beets, and other plants are examples of those with tap roots.Fibrous root system :-
No such primary root exists; rather, all roots share certain characteristics. Monocot plants contain fibrous root system. Instead of growing from the radicle, fibrous or adventitious roots can be seen in plants.Shallow, short-lived roots with a choice of aerial or subsurface growth are found in fibrous or adventitious roots.Although fibrous root or adventitious root systems are quick to absorb surface and irrigation water, they cannot thrive in drought and will quickly dry out.Grass, wheat, coconut palms, and onions are a few examples of plants with fibrous roots or systems.know more about monocots and dicots here
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PLEASE RESPOND QUICKLY
Answer:
It could be any of the following except thymine.
Is atherosclerosis an aging disease?
Aging is an independent risk factor for the development of Atherosclerosis , as arteriosclerosis is classified as a geriatric disease.
Aging is associated with decreased mitochondrial function and increased IL-6 levels in the vasculature, both effects believed to accelerate atherosclerosis due to habitual hyperlipidemia alone. Atherosclerosis is an independent form of arteriosclerosis. Atherosclerosis is the buildup of fat, cholesterol, and other substances in the walls of arteries. This buildup is called plaque. Plaque can cause arteries to narrow and block blood flow. Atherosclerosis is the thickening or hardening of arteries caused by plaque buildup in the lining of the arteries. Risk factors include high cholesterol and triglycerides, high blood pressure, age, smoking, diabetes, roundness, exercise, and saturated fat consumption.
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What is it called when 2 genes are the same?
For each chromosomal region where such variation exists, an individual inherits two alleles, one from each parent.
If the two alleles are identical, the individual is homozygous for that allele. If the alleles differ, the individual is heterozygous.
Alleles are matching genes, one from our biological mother and one from our biological father.
We have two copies of every gene (strings of code that drive some biological function on our chromosomes). They might be identical, although they frequently have minor variances.
If the paired alleles are the same, the organism's genotype is said to be homozygous for that characteristic; if they are different, the organism's genotype is heterozygous.
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Mason used a 30% coupon to buy a new computer. After the discount, the cost of the computer was $728.
By dividing the required value by the entire value and multiplying the result by 100, the percentage is computed.
The computer cost 1040 when it was new.
Mason used the coupon to save 312 dollars.
What is a percentage?By dividing the required value by the entire value and multiplying the result by 100, the percentage is computed.
Example:
The necessary percentage value is a.
Value total = b
a/b x 100 Equals percentage
We've got
30% off with coupon
Computer price after discount = 728
As a result, the cost of the computer is only 70% as intended because 30% is incorrect.
70% = 728
The original pricing is 100%, as far as we know.
So,
70% = 728
multiply all sides of 100/70.
100/70 x 70% = 100/70 x 728
100% = 1040
The computer originally cost 1040.
Savings amount is:
= 1040 - 728
= 312
Thus,
The computer cost 1040 when it was new.
Mason used the coupon to save 312 dollars.
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What would happen to a cell that did not have any smooth endoplasmic reticulum?
The smooth endoplasmic reticulum is crucial for lipid synthesis. The organelle responsible for the synthesis of biomolecules is known as the smooth endoplasmic reticulum (SER). There won't be any lipid creation if SER is missing from the cell.
'What is SER and its functions?'
Most eukaryotic cells have the smooth endoplasmic reticulum (smooth ER), a membrane organelle. It is a portion of the endoplasmic reticulum's endomembrane system. The synthesis of lipids, the production of steroid hormones, the removal of toxic metabolic waste products, and the storage and utilization of calcium ions within the cell are its primary tasks. The absence of membrane-bound ribosomes sets the smooth ER apart from the other endoplasmic reticulum regions. This organelle is particularly distinctive physically and frequently consists of tubular organelles termed cisternae.
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a bacterium has a special need for 6-phosphogluconate. what precursors and possible cofactors are needed in the most efficient (fewer number of enzymes) to generate this? (if multiple substrates would be created, assume they can be easily recycled.) products from nucleic acid catabolism intermediates from glycolysis glucose-6-phosphate from glycogen and nadp glucose-6-phosphate from glycogen and nadph products from nucleic acid catabolism and nadph
Answer:
To generate 6-phosphogluconate, the bacterium would need precursors from nucleic acid catabolism and intermediates from glycolysis. The bacterium would also need the cofactors NADP and NADPH. These precursors and cofactors can be obtained from the breakdown of glycogen, as well as from the catabolism of nucleic acids. In the most efficient pathway, the bacterium would use enzymes to convert these precursors and cofactors into 6-phosphogluconate. It is possible that additional enzymes and cofactors may be needed in this process, depending on the specific requirements of the bacterium.
The products of photosynthesis are the a reactants of fermentation b products of cellular respiration c reactants of cellular respiration d products of glycolysis
The final electron acceptor in aerobic cellular respiration is oxygen. Therefore, glucose and oxygen are created during photosynthesis and used in cellular respiration.
B option is correct
How is photosynthesis carried out?
the process of growing food by utilising sunlight's energy (glucose). Of course, it is much more intricate than that simple statement suggests. Photosynthesis, a multi-step biological process that uses sunlight energy to create carbohydrates and release oxygen in the process, reduces carbon dioxide.
What product is a byproduct of photosynthesis?
During photosynthesis, oxygen and glucose are formed.
(This is fantastic news for creatures like humans and plants that use oxygen to complete cellular respiration.) Oxygen is expelled from the leaves through the stomata.
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