The current model of the plasma membrane, called the fluid mosaic model, is so named because it describes the membrane as being composed of a fluid mixture of lipids and proteins that are arranged in a mosaic-like pattern.
The fluid part of the model refers to the fact that the lipids in the membrane are highly fluid and can easily move around within the plane of the membrane. This is due to the fact that the lipids in the membrane are primarily composed of phospholipids, which have a polar head group and two nonpolar fatty acid tails. The polar head groups are hydrophilic (water-loving) and are attracted to the aqueous environment on either side of the membrane, while the nonpolar fatty acid tails are hydrophobic (water-fearing) and are repelled by water. As a result, the phospholipids spontaneously form a bilayer in which the polar head groups are oriented towards the aqueous environment and the nonpolar fatty acid tails are oriented towards the center of the membrane, away from water. This arrangement allows the lipids to move freely within the plane of the membrane, which gives the membrane its fluid-like properties.
The mosaic part of the model refers to the fact that the membrane is not just a homogenous mixture of lipids, but is also composed of a variety of proteins that are embedded within or attached to the lipid bilayer. These proteins perform a wide range of functions within the membrane, such as transporting molecules across the membrane, signaling between cells, and providing structural support. The proteins are arranged in a mosaic-like pattern within the membrane, with some proteins being more densely packed in certain regions and others being more spread out in other regions.
Overall, the fluid mosaic model describes the plasma membrane as a dynamic and heterogeneous structure that is composed of a fluid mixture of lipids and proteins that are arranged in a mosaic-like pattern.
The current model of the plasma membrane, called the fluid mosaic model, is called this because the membrane is composed of a fluid mixture of lipids and proteins that are constantly moving and rearranging.
What is fluid mosaic model?The fluid part refers to the movement and fluidity of the lipids, which are composed of phospholipids that have a hydrophobic (water-repelling) tail and a hydrophilic (water-attracting) head. These phospholipids are arranged in a double layer, or bilayer, with the hydrophobic tails facing inward and the hydrophilic heads facing outward.
The mosaic part refers to the proteins that are embedded within the lipid bilayer or attached to the outer surface. These proteins have various functions, such as transporting substances across the membrane, signaling between cells, and recognizing and binding to other molecules. Together, the lipids and proteins form a dynamic and fluid mosaic that allows the plasma membrane to perform its various functions.
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What is the energy source for producers, consumers, and decomposers?
Answer:
They obtain their energy from the sun and make food with that energy through the process of photosynthesis.
Ollie runs 40 meters in 5 seconds. How far could she run in 60 seconds?
Answer:
60 seconds would be 480 meters
Explanation:
we can find the answer by using the method of distribution, but first take the 60 seconds and divide by 5 seconds and we'll get 12 then multiply that by 40 meters to get 480 meters and since we divided 60 seconds by 5 the was how we figured out what to multiply the 40 meters to.
Why do scientist want to locate the epicenter of an earthquake?
Answer:
So that the fault that ruptured causing the earthquake can be identified.
How might the effectiveness of nectar change if it had a bitter taste?
Answer:
Floral nectar is offered by plants to animals as a reward for pollination. While nectar is typically a clear liquid containing sugar and trace amounts of amino acids, colored nectar has evolved in several plant families. Here we explore the functional significance of the phenolic compounds that impart a dark brown color to the nectar of the South African succulent shrub Aloe vryheidensis. Flowers of this aloe are visited.
Explanation:
Hope this helps
Which scientist proposed that if an organism used a structure so much that it grew, the trait of that larger structure could be passed to its offspring?
O Eramus Darwin
O Jean-Baptiste Lamarck
O Georges de Buffon
O Charles Lyell
Hormones are proteins uses as
-chemical receptors
-chemical messengers
-sugar
Answer:
chemical receptors please your answer
what is another term for regular reflection
Answer:
Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface
Answer:
Explanation:
Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface.
The law of reflection states that a reflected ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by the incident and reflected rays. This behavior was first described by Hero of Alexandria (AD c. 10–70).
Specular reflection may be contrasted with diffuse reflection, in which light is scattered away from the surface in a range of directions.
Where do maple trees get their energy and Matter at the beginning of spring
Answer:
From the stored sugar inside the stem and branches.
Explanation:
The maple trees get their energy at the beginning of spring from the sugar that is stored in the stem and branches because there is no leaves present at that time. Leaves produces glucose during photosynthesis process but in the winter season, the maple tree losses all its leaves so when the spring season comes and the leaves begin to sprout, the maple trees need energy so it used the sugar that is stored in its branches and stem for the generation of energy.
The worm population will . . .
Answer:
Die in a few years
Explanation:
What? I’m being realistic!
take over the earth in a few days
Which adaptation would most likely help a plant collect more energy for photosynthesis? A. Broad leaves B. Short stems C. Deep roots D. Large flowers SCIENCE
Holes also allow more sunlight to get through to the leaves below, which maximizes sun absorption and photosynthesis. Adaptation: During the heat of the day's sunlight, most plants open stomata (pores) in their leaves to take in carbon dioxide from the air for photosynthesis, while allowing some water to escape.
hope that helps.
What is a cell? Why is it called the basic unit of life?
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What is a cell? Why is it called the basic unit of life?
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Cells are the basic unit of life, all living organisms are made up of cells, which means cells make up humans, plants and animals. Nonliving things on the other hand are composed of chemical elements and compounds.
Note: My answer is based on my understanding of your question.
Hopefully Help:)
#CarryOnLearning#NoToPlagirismHow can an offspring have a trait that neither parent
has?
Answer: How might it be possible for you to show a trait when neither of your parents show the same trait. It can be carried to you when the chromosomes combine even if the parents don't possess the same trait It can skip and be dominant for you so you would be able to see it in your genetic make up.
Explanation:
Help with this pls I'm very counfused and it's due in 1 hours. 
Answer:
Flagellum
Locomotion
Explanation:
I found it on Quiziz(z)
how have humans changed the carbon cycle
Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... This extra carbon dioxide is lowering the ocean's pH, through a process called ocean acidification.
Explanation:
Match the vocabulary word to the correct definition.
Column A
1.
This can release and store energy by breaking and re-forming the bonds between its phosphate groups:
This can release and store energy by breaking and re-forming the bonds between its phosphate groups
2.
The fluid portion of the chloroplast outside of the thylakoids is known as this:
The fluid portion of the chloroplast outside of the thylakoids is known as this
3.
The thylakoid contains this protein complex that spans the membrane and allows H+ ions to pass through it:
The thylakoid contains this protein complex that spans the membrane and allows H+ ions to pass through it
4.
this compound has two phosphate groups, adenine, and a 5 carbon sugar called ribose:
this compound has two phosphate groups, adenine, and a 5 carbon sugar called ribose
Column B
a. ATP synthase
b. ADP
c. stroma
d. ATP
Answer:
1
Explanation:
PLEASE HELP ASAP
When environmental conditions change, selection can cause a change in the distribution of phenotypes of that species. Which of the following trends would provide evidence of disruptive selection in response to environmental change?
A shift in a population's frequency curve from an intermediate phenotype to an extreme phenotype
A shift toward equal distribution of all phenotype frequencies, including intermediate and extreme phenotypes
An increase in the frequency of extreme phenotypes and a decrease in the frequency of intermediate phenotypes
An increase in the frequency of intermediate phenotypes and a decrease in the frequency of extreme phenotypes
Answer:
One of the extreme phenotypes has the highest fitness. The bell curve shifts towards the more fit phenotype.
so I think w ould say the second one
Explanation:
Answer:
An increase in the frequency of extreme phenotypes and a decrease in the frequency of intermediate phenotypes
Explanation:
A disruptive selection is one where the extreme phenotype frequencies are increased and the intermediate phenotype frequencies are decreased.
**(Also I just took the test and this was the answer)
What part of the plant does the flower attached to
Answer:
The part of a flower stalk where the parts of the flower are attached.
Explanation:
Also known as stem
How does the body plan and anatomy enable the chordate to perform essential functions it needs to survive?
Answer: Keep in mind invertebrates are those who have exoskeletons (outside skeleton) or are hydrostatic (no skeleton). This make up 95% of all animals for example an ant or sponge. For a sponge, all it has is tissues that enable it to allow water to flow out the tops.
2.) Chordata are anything with vertebrates so a simple fish could suffice. THEY HAVE 4 SPECIFIC CHARACTERISTICS: 1.Notochord 2.Dorsal, hollow nerve cord 3.Pharyngeal slits 4.Muscual, an.al tail
3.) This is us, we have thumbs, and vertebrates. brainliest
Explanation:
Answer:
b
Explanation:
Determine whether each statement correctly describes the myocardial action potential and the pacemaker potential. 1. Because the pacemaker potential occurs during systole, it can also be called systolic potential. (Click to select) 2. The pacemaker potential is the relatively slow, spontaneous depolarization in the SA node. (Click to select) 3. Myocardial cells produce their own action potentials after being stimulated by action potentials originating in the SA node. (Click to select) 4. Myocardial action potentials are characterized by a spike and then slow depolarization. (Click to select)
Answer:
1. False
2. True
3. True
4. False
Explanation:
In mammals, the contraction of the heart muscle is caused by pacemaker cells localized within the sinoatrial (SA) node. These cells rhythmically generate slow electrically-induced action potentials due to their slow rate of depolarization. The pacemaker cells generate the action potentials that propagate through the heart and trigger the contraction of myocyte cells (i.e., myocytes simply conduct the action potential waves). The slow depolarization of pacemaker cells occurs during diastole, i.e., during the period of relaxation of the heart muscle.
For the places that are at high risk of earthquakes or tsunamis, how might builders minimize the risk for the people who live there?
Whodunnit?
Six contestants on a reality TV show were stunned to find their lowest scoring colleague was "injured." They
must figure out the crime before the bell rings. The question is Whodunnit? And how... The Player, Last
Known Whereabouts and Method that are left unaccounted for -- is the solution.
Answer: No, it's not a scam file. Got it in my science class
Explanation:
What front is being forecast for this state?
Which word best describes the energy of the boiling water
Answer:
Thermal energy
Explanation:
The probability of the parents having a child with hairy knuckles is...
I need help with this. Ty
Answer:
1. They can not make their food during photosynsheis because they have no chlorophyll.
2, Fungican be beneficial because it helps us produce some of our favorite foods. (ex:yeast for pizza) Fungi can also help to control infections with antibiotics.
3.There are some variaties of fungi that can be harmful and even can give us skin reactions.
4. Fungi can adapt to any weather but if the tempature is too cold, they will go into a deep sleep.
5.Life would be impacted because without fungi, it would be harder to find rich soil to grow crops.
Explanation:
How many offsprings are formed from asexual reprodcution?
Answer:
They produce offsprings that are related to the parent, genetically identical to the parent.
Explanation:
Hope it helps :)
Which one the following is the most stable?
Answer:
plz tell which is your following
Y’all plz help I fell asleep and don’t remember
Answer:
A.
Explanation:
A mutation is least likely to affect a cell when the mutation reverses the order of bases in a DNA strand.
Why might you always need to have some glucose in the blood?
Answer:
Blood glucose is a sugar that the bloodstream carries to all cells in the body to supply energy. A person needs to keep blood sugar levels within a safe range to reduce the risk of diabetes and heart disease.
Hope this helps :)
Answer:
you need a lot of starch
Explanation:
for your glucode
Worms that had been invaded by bacteria were eaten by birds. Many of
these birds died. The most likely explanation for this is that the:
a. Bacteria interfered with
normal life of the birds
b. Disease that killed the birds
was inherited
c. Gene alterations in the
bacterial cells killed the birds
d. Birds produced antibodies in response to the bacteria
Answer:
Bacteria interfered with
normal life of the birds
Explanation: