Answer:
The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. ... The plasma membrane consists of a lipid bilayer that is semipermeable. The plasma membrane regulates the transport of materials entering and exiting the cell.
A cell is protected by its cell membrane, also known as the plasma membrane. Additionally, it moves hazardous materials out of the cell and carries nutrients into the cell.
What is a cell membrane?All cells' interiors are protected from the outside world by a biological membrane called the cell membrane. A cell is protected by its cell membrane, also known as the plasma membrane. Additionally, it maintains a constant environment inside the cell, and that membrane serves a variety of purposes. One is to move substances out of the cell that are toxic as well as nutrients into the cell.
Glycerophospholipids, molecules made of glycerol, a phosphate group, and two fatty acid chains, are what make up cellular membranes, including plasma membranes and internal membranes.
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Which scenario best describes natural selection?
a species of flower develops a gene that results in a more attractive nectar causing more pollinators to be attracted
wheat plants are selected for their ability to produce the most wheat germ
a bacteria exposed to radiation acquires a mutation
a hurricane occurs and kills 70% of the members of a rodent species
Answer: A species of flower develops a gene that results in a more attractive nectar causing more pollinators to be attracted
Explanation: I think it’s that one and sorry if I’m wrong but to me the other choices don’t seem to fit as a hurricane kills 70% isn’t helping any organisms adapted and the other two choices no organisms is adapted but the first, the flowers have to adapt as they develop a new gene and it also affects pollinators
If you could invent a synthetic myelin, what disease might you be able to functionally cure?
A. cerebral palsy
B. multiple sclerosis
C. Alzheimer's
D. Huntington's
Answer: B
Answer:
b
Explanation:
A genetic disease is found in a family that affects the immune system, lungs, heart, and kidneys. A DNA analysis of several affected and unaffected family members determines that the disease is caused by a mutation in a single gene. What type of inheritance pattern is shown in this disease?(1 point)
polygenic trait
codominance
incomplete dominance
pleiotropy
Answer:
D.) pleiotropy
Explanation: Just took the quiz.
Pleiotropy arises when one gene affects two or more seemingly unrelated phenotypes. A pleiotropic gene expresses many phenotypes. Therefore, option (D) is correct.
What is Pleiotropy?
When one gene influences two or more phenotypic qualities that do not appear to be related to one another, this phenomenon is known as pleiotropy. A gene is said to be pleiotropic if it can exhibit many phenotypic expressions in a single organism.
Phenylketonuria is a condition that serves as a straightforward illustration of a pleiotropy. A slow metabolism of the amino acid phenylalanine in the cells of the body is the root cause of this hereditary condition, which causes phenylketonuria.
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what is the life cycle of a liverhook
Answer:
Image result for what is the life cycle of a liverhook
Following ingestion, the young flukes migrate to the liver, through which they tunnel, causing considerable tissue damage. The infection is patent about 10-12 weeks after the metacercariae are ingested. The whole cycle takes 18-20 weeks.
Explanation:
Blood types are known as multiple alleles. Cross a person who has O blood with someone who has AB blood. What are the possible blood types from this cross? (2 answers)
1. A blood type
2. B blood type
3. AB blood type
4. O blood type
Answer:
is A blood type
Explaination:
what noble gas is the most abundant in the atmosphere?
Answer:
The most abundant noble gas in atmosphere is Argon
A group of scientists is studying a certain species of mouse. Previous genetic analysis has shown that fur color in this species is controlled by a single gene that has two alleles: a dominant allele (FF) that is associated with dark fur, and a recessive allele (ff) that is associated with light fur. The scientists collected data about a population of these mice to help determine the population's fur color allele frequencies. They found that out of 952 mice in the population, 238 mice had light fur. Assuming that the population is in Hardy-Weinberg equilibrium, which of the following is the number of mice in the population that have the genotype FfF, f?
50
238
476
952
Answer:
476
Explanation:
Wha is biology and how it started and what kind of biology is this
Answer:
Basically biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine, and the works of Aristotle and Galen in the ancient Greco-Roman world. This ancient work was further developed in the Middle Ages by Muslim physicians and scholars such as Avicenna. During the European Renaissance and early modern period, biological thought was revolutionized in Europe by a renewed interest in empiricism and the discovery of many novel organisms
Explanation:
Answer:
Basically biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine, and the works of Aristotle and Galen in the ancient Greco-Roman world. This ancient work was further developed in the Middle Ages by Muslim physicians and scholars such as Avicenna. During the European Renaissance and early modern period, biological thought was revolutionized in Europe by a renewed interest in empiricism and the discovery of many novel organisms
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After the amino acid chain leaves the ribosome, which organelle then folds, modifies, and transports the protein?
O Lysosome
O Cytoplasm
O Endoplasmic Reticulum
O Ribosome
Answer:
The endoplasmic reticulum
Explanation:
It is not the lysosome because their processes are degrading and recycling cellular waste, and involved in energy metabolism
It is not the cytoplasm because the cytoplasm doesn't do anything itself, it just provides an environment for the rest of the organelles to do their job
It is not the ribosome because the amino acid chain left the ribosome in the question
For secretory, plasma membrane, and organelle proteins, the endoplasmic reticulum (ER) is a significant protein folding compartment. Thus, option C is correct.
What is the role of Endoplasmic Reticulum in folding?A polypeptide chain cannot acquire its right structure and function without protein folding.
Chaperones are HSP that aid in protein folding. Chaperonins are multimeric complexes that fold proteins by forming hollow structures.
Numerous general activities of the endoplasmic reticulum include transporting produced proteins in vesicles to the Golgi apparatus and folding protein molecules into sacs termed cisternae.
Therefore, Endoplasmic Reticulum folds, modifies, and transports the protein.
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4. Which biomolecule is primarily responsible for storing energy?
C, protein
D. carbohydrate
A. lipid
B. nucleic acid
Answer:
D
Explanation:
any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose. They contain hydrogen and oxygen in the same ratio as water (2:1) and typically can be broken down to release energy in the animal body.
what condition might result from an excess of aquaporins?
Answer:
fluid retention in pregnant women Aquaporins transport water. An excess of aquaporins during pregnancy can result in fluid retention. Water movement is important in urine formation in the kidneys.
Explanation:
the study of the ears, nose, and throat is known as
The study of ears, nose and throat is known as Otolaryngologist.
What is Otolaryngologist?Otolaryngologist is a medical specialty focusing on ears, nose and throat. It is often called as an ear, nose and throat doctor or an ENT specialist.
This medical field dates back to 19th century when doctors recognized connection of head with neck.
This field differs from general physician as the former perform different surgeries on the delicate and complex tissue of the head and neck.
What are the area of interest of Otolaryngologist?They majorly focuses upon Ear, Nose, Throat, Head and Neck.
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what is the ultimate source of electrons for photosynthesis in plants?
Answer: Water
Explanation:
What is the ultimate source of electrons for photosynthesis?
In photosynthesis, water is the source of electrons and their final destination is NADP+ to make NADPH
Photosynthesis is a plant process to make food and energy. It includes various steps to release energy. The water molecule is the ultimate electron donor in the process.
What is photosynthesis?Photosynthesis is said to be the process that converts solar energy into the chemicals that are used as the energy source in cellular respiration activities. Here, sunlight, carbon dioxide, and water act as reactants.
The carbon dioxide and water undergo splitting by the membrane pigments and then the electron produced from water is carried with enzymes to make NADP⁺. This is further used to make NADPH. As result oxygen along with the sugar molecules are produced and are rich in ATP.
Therefore, water is the foremost source of electrons for photosynthesis in plants.
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Name the following
he valve presents at the mouth of the pulmonary artery
Explanation:
The pulmonary valve (sometimes referred to as the pulmonic valve) is a valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps. It is one of the four valves of the heart and one of the two semilunar valves, the other being the aortic valve. Similar to the aortic valve, the pulmonary valve opens in ventricular systole, when the pressure in the right ventricle rises above the pressure in the pulmonary artery. At the end of ventricular systole, when the pressure in the right ventricle falls rapidly, the pressure in the pulmonary artery will close the pulmonary valve.
Does gypsum occur naturally pls give an explanation
Answer:
its a naturally occurring mineral
Explanation:
Gypsum is made up of oxygen, sulfur, calcium and water. As evaporation occurs the sulfur is not protected by the water and oxygen contacts sulfur bonding with it to form a sulfate. The sulfate then bonds with calcium and water to create gypsum.
In science, the term theory is applied only to ideas that are supported by a vast, diverse array of evidence. How is the term used in everyday life?
Answer:
It explains facts and allows people to make predictions.
Explanation:
In everyday life, the word theory often means an untested hunch, or a guess without supporting evidence. A theory not only explains known facts but also allows scientists to make predictions of what they should observe if a theory is true.
In science, the term theory is applied only to ideas that are supported by a vast, diverse array of evidence. The term is also used in everyday life based on personal beliefs which does not support any strong evidence.
What is scientific theory?In science, a theory is a term applied to a well-explanation of an aspect of the natural world on the basis of empirical evidence that has undergone rigorous testing and evaluation. The process involves collecting and analyzing data and observations and hypotheses are based on the data obtained which form the basis of scientific theory. Therefore, scientific theory is an explanation that has been verified by scientific researchers.
However, the term theory is casually used in everyday language without any scientific proof. For example, someone may say "I have a theory that the universe fake". This fact is casually spoken by a person which is not based on any scientific fact.
Scientific theories are based on evidence supported by rigorous testing, while everyday theories are based on personal beliefs without any strong evidence.
Therefore, the term theory is also used in everyday life, which is based only on a personal belief, and not only on any scientific fact.
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need ans asap thankssssss
Explanation:
electromagnetic waves: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.
radio waves: Radio waves are a type of electromagnetic radiation best-known for their use in communication technologies, such as television, mobile phones and radios. These devices receive radio waves and convert them to mechanical vibrations in the speaker to create sound waves.
microwaves: Microwave is a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter corresponding to frequencies between 300 MHz and 300 GHz respectively.
infrared: Infrared (IR) light is used by electrical heaters, cookers for cooking food, short-range communications like remote controls, optical fibres, security systems and thermal imaging cameras which detect people in the dark.
visible ray: The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 380 to about 750 nanometers
ultraviolet:UV radiation is widely used in industrial processes and in medical and dental practices for a variety of purposes, such as killing bacteria, creating fluorescent effects, curing inks and resins, phototherapy and suntanning. Different UV wavelengths and intensities are used for different purposes
xray:An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 picometers to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (30×1015 Hz to 30×1018 Hz)
gama ray :A gamma ray, also known as gamma radiation, is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei.
What are some threats to soil ?
Answer:
we need to focus on the 10 main threats to soil functions: soil erosion, soil organic carbon loss, nutrient imbalance, soil acidification, soil contamination, waterlogging, soil compaction, soil sealing, salinization and loss of soil biodiversity.
Explanation:
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Lillian parents are farmers. There are two types of fertilizers on the market. Both brands claim to grow carrots fastest. Plan and design an experiment to help Lillian's parents. Identify the independent, dependent and a control variable
The experiment to help Lillian's parents will consist of planting various carrots using both kinds of fertilizers, and maintaining a constant carrot type, amount of light, and amount of water throughout each plant.
In order to perform an accurate experiment, we need to identify three kinds of variables:
Independent variableDependent variableControl variableIn an experiment, the Independent variable is one whose value does not depend on the others. What this means is that this variable will not react to changes that occur in others. In this experiment, the independent variable is the fertilizer, given that it is not affected by the species of carrot, type of soil, or any other variable present.
The dependent variable in an experiment is just the opposite, it is, as the name implies, a variable whose value depends on the other variables present. In an experiment, this variable represents the data that we seek to measure. For this experiment, the dependent variable is the growth rate of the carrots because it is affected by the amount of water, light, and type of fertilizer we use, as well as being what we wish to measure.
Finally, the last variable we must identify is that of the control variable, also known as the constant or standardized variable. This variable is of vital importance for the accuracy of any experiment. This variable corresponds to those factors which we maintain constant through each trial in the experiment, for the example above, it is the amount of water and light, as well as the type of carrot, Lillian's parents will use.
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In an ecosystem, what form does carbon take after photosynthesis? What form does carbon take after cellular respiration?
Answer:
organic molecules and carbon dioxide
Explanation:
Photosynthesis by land plants, bacteria, and algae converts carbon dioxide or bicarbonate into organic molecules. Organic molecules made by photosynthesizers are passed through food chains, and cellular respiration converts the organic carbon back into carbon dioxide gas. Cellular respiration does not affect the carbon cycle but is part of the carbon cycle. The 2 carbon cycles. carbon ( C ) is taken up by the plants and trees in the form of carbon dioxide ( CO2 ).
Please answer 16 points !!
Answer:
fisrt one is the answer most likely
If you were on Earth at 60° N and looked directly up around noon, what would you see?
Answer:
You would experience 24 hours of it being night or darkness
Explanation:
it is more than 90 degrees away from the suns vertical ray
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dark hard position of secondary xylem is called
Answer:
Duramen - The central or inner dark coloured non-functional wood or secondary xylem, not takes part in the conduction of water is called Duramen or Heartwood.
Answer:dark hard position of secondary xylem is called Duramen
Explanation:
A woman with blood type AB has children with a man who has blood type O. List the possible blood types for their children.
Answer: In most cases, an O parent and an AB parent will have only A or B kids. It is only very rarely that they might have an AB or an O child.
Help!!!!!!!!!
Difference between sperm and zygote
zygote is the diploid cell that results from the fertilization between an egg and sperm
sperm is the male reproductive cell that is responsible for a baby to born
ZYGOTE IS DIPLOID CELL FORM WHEN TWO GAMETE CELLS ARE JOINED BY MEANS OF SEXUAL REPRODUCTION
SPERM IS THE MALE REPRODUCTIVE CELL,OR GAMETE IN ANISOGAMOUS FORMS OF SEXUAL REPRODUCTION.
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The cell membrane is said to be semipermeable because
Answer:
it is made of phospholipid bilayer along with other various lipids, proteins, and carbohydrates
a protein kinase cascade can amplify an intracellular signal by
Entre las personas , la practica de estilos de vida denominados saludables ¿que consecuencias tiene sobre su metabolismo?
Answer:
El estilo de vida es una expresión utilizada para describir la forma en que se entiende o se percibe la vida. Este concepto no tan filosófico, sino más bien al estilo característico en que desarrolla de vida. Estos aspectos abarcan, relaciones personales, del consumo, y la forma de vestir. Ademas de ello, en la descripción de las actitudes, aptitudes, y preferencias que refleja un individuo en la sociedad.
Por su parte, se puede decir que el metabolismo es el conjunto de reacciones químicas a partir de los alimento, las cuales se desarrollan en el cuerpo con la finalidad de producir energía necesaria para el desarrollo del ser vivo.
Con todo esto, se puede decir que el estilo de vida, específicamente el consumo de alimentos pueden afectar de manera importante el metabolismo en un sentido que de acuerdo a las características de los productos que se consuman, las reacciones químicas generadas pueden variar.
Asimismo, dichos factores pueden ser de riesgo o generadores de bienestar, ya que alteran de manera directa el proceso dinámico de degradación de alimentos.
Explanation:
16. Which of the following stimuli would cause the liver to produce more glycogen?
Some people say it’s B or C, which one is correct?
An earthquake’s magnitude is a measure of the _____.
damage the earthquake causes
number of surface waves it produces
amount of shaking it produces
size of seismic waves it produces
Answer:
Size of the seismic waves generated by an earthquake
Explanation: