most of the surface area of a plasma membrane consists of

Answers

Answer 1

Answer:

50% liquid and 50% protien by wieght


Related Questions

Would a light source be considered an internal or external stimulus?

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External stimulus because Plants may respond to the following external stimuli: Light: Plants rely on photosynthesis to convert light energy into chemical energy. Plants often grow towards a light source. This behavioral response is called positive phototropism.

For plants, light is an external stimulant. Phototropism is a response to light that plants have. The plant responds by orienting its growth in the direction of the light.

What is stimulus?

A stimulus is an occasion or any change in the environment that causes an organ or tissue to have a certain functional response.

An external or internal trigger is possible. Sensitive to external stimuli like sound and touch are sense organs like the ear and sensory receptors like those in the skin.

Direct one-to-one stimulus-response reactions are the most basic sort of response. The stimulus is a change in the environment, and the response is how the organism responds to it.

A stimulation that comes from outside the organism is known as an external stimulus. Light is one example of an outside stimulation. Although it comes from outside the body, it has an impact there as well.

Thus, it can be concluded that light is an external stimulus.

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What is a chemical reaction from your teeth

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Answer: Calcium ions, phosphoric acid and water.

Explanation: Calcium phosphate and hydrogen ions undergo a reversible reaction with calcium ions, phosphoric acid and water. The products of the reaction are calcium ions, phosphoric acid and water. All of these exist in chemical equilibrium with the crystalline calcium phosphate.

Answer:

calcium ions, phosphoric acid and water

Explanation:

Calcium phosphate and hydrogen ions undergo a reversible reaction with calcium ions, phosphoric acid and water

Which organelle uses chemicals to break down food and worn out cell parts; Trash/cleaning Crew?
A.Endoplasmic Reticulum
B. Ribosome
C. Lysosome
D. Chloroplast

Answers

Lysosomes break down food and worn out cell parts

glial cells that surround the neurons in ganglia are:

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Answer:

Explanation:

Satellite cells are small glia that surround neurons' sensory ganglia in the ANS. These resemble the astrocytes of the CNS and assist in regulating the external chemical environment. PNS satellite glia are very sensitive to injury and may exacerbate pathological pain.

Glial cells surrounding the neurons of neurons are satellite cells.

What are the functions of glial cells?

Glial cells are a type of cell that provide physical and chemical support to neurons and maintain their environment. Located in the central nervous system and peripheral nervous system.

Glial cells outnumber neurons in the brain and outnumber them by a ratio of 3:1. Although glial cells also have complex processes extending from their cell bodies, they are generally smaller than neurons and  lack axons and dendrites.

Oligodendrocytes form the myelin sheath around axons. Astrocytes supply neurons with nutrients, maintain their extracellular environment and provide structural support. Microglia clear pathogens and dead cells.

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Onion root tips contain cells that are constantly dividing. Why was it important to use the onion roots tips to observe chromosomes during mitosis rather than a cell from another part of the plant?
a. Because cells in the leaves do not have DNA or chromosomes.
b. Because chromosomes only form during mitosis, one part of cell division
c. Because root cells are naturally purple, so you can see the chromosomes
d. Because cells in the leaves only divide, but do not undergo mitosis.

Answers

Explanation:

the answer to your question is A

Onion roots are used to see mitosis because of rapid growth at the onion tips and at the stage of mitosis,leaves of the plants has division in the cells but there is no mitosis. the correct answer is option D.

What is the significance of mitosis ?

The significance of mitosis is that in the stage the chromosomes are paired and the pairing of this homologous chromosomes makes the chromosomes visible at the equatorial plate.

Leaves do not undergo cell mitosis as they do show the cell division  from various types of tissues but the mitosis is absent and the root cells show rapid division in the lateral sides and because of roots being the active site of division, these are considered more to see mitosis happening.

Thus, mitosis being absent in leaves takes the roots to be considered option.

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since the parasympathetic division causes the heart rate to ____________ and the sympathetic division causes the heart rate to ____________ , this is an example of antagonistic innervation.

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Answer:

since the parasympathetic divison causes the heart rate to decrease and the sympathetic divison causes the heart rate to increase this is an example of antagonistic innervation

Explanation:

Definition of Genetic Engineering​

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Answer:

Genetic engineering is the process of altering or modifying the DNA in an organism’s genome.

Answer:

Genetic engineering, also called genetic modification or genetic manipulation, is the direct manipulation of an organism's genes using biotechnology

Which of the following are forms of cell regulation?

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Answer:

the answer is should be C

I c would be correct

What organism aids your body with digestion?

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Answer:

mouth, esophagus, stomach, small intestine, large intestine, rectum and anxs.

can hamsters eat dragon seeds?

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Answer:

please mark as brains list

Explanation:

No hamsters can not eat dragon fruit because the seeds will choke them and also it has toxic things that hamsters can not eat, but only humans can, but here are the list of fruits they can eat.

Apple (seedless)

Banana

Blackberries

Blueberries

Cantaloupe.

Cherries

Cranberries

your computer records the raw sequencing data shown below. how many different sequences are represented in this dataset?

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Answer: 3


Hope this helps :)

What observations did charles darwin make about finches in the galápagos islands?

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Answer:

He noticed that each finch species had a different type of beak, depending on the food available on its island. The finches that ate large nuts had strong beaks for breaking the nuts open.

Rejection of a newly translated organ caused by ..

Answers

Answer:

D

Explanation:

Rejection of a newly translated organ caused by development of cancerous cells in the organ

(LO 1.6) Assume a person just drank a glucose solution and is sitting quietly.
Injecting insulin would cause compared to when there was no insulin
injected.
m

Answers

Answer:

more glucose to move into cells in muscles

Explanation:

What process allows the cell to remain efficient

Answers

Answer:

cell growth control

Explanation:

could you give me brainliest?

please help me.what are the insects with out siphoning mouth parts.? please help.​

Answers

The mouthparts of butterfly and moths are siphoning and sucking type. These mouthparts are best suited to draw nectar from the flowers. Siphoning-sucking mouthparts are mostly limited to adult butterflies and moths (Order Lepidoptera)

define osmoregulation​

Answers

Answer: OK!

Explanation: Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated.

Hope i helped! :D

meiosis produces four genetically different haploid cells. Mitosis produces..

a) 4 genetically identical haploid cells
b) 2 genetically different diploid cells
c) 2 genetically identical diploid cells
d) 4 genetically different haploid cells

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Answer:

c) 2 genetically identical diploid cells

please help need asap

Answers

Answer:

The correct answer is C (The change of color allowed them to hide better from predators)

Explanation:

Before, the deer mice were easy prey for predators since their color stood out and the predators could find them. Therefore, the change of color allowed them to hide better from predators. You may be tempted to answer a, but if you read carefully it says "The change of color camouflaged them, which helped them HUNT better." Clearly A is wrong since deer mice don't really hunt.

The use of restriction enzymes and electrophoresis to generate a map of the DNA molecule is known as

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The use of restriction enzymes and electrophoresis to generate a map of the DNA molecule is known as RESTRICTION MAPPING. This technique is used to map an unknown fragment of DNA.

Restriction enzymes are enzymes that cut a DNA fragment at specific nucleotides sites, thereby generally smaller fragments of DNA.

Restriction mapping is a strategy used to map unknown fragments of DNA by digesting them into smaller fragments and then identifying the specific sites of the DNA breakpoints.

Restriction mapping can then be used to create a diagram of fragments of DNA marked with specific sites where they are cut by specific restriction enzymes.

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Which of the following is another name for ova?

Answers

Answer:

d. All of the above

Explanation:is correct. post protected

Answer:

All of them are the same word

What is the function of glycoproteins?

O to detect bacteria and other foreign bodies outside of the cell

O to actively carry specific ions or molecules into the cell

O to serve as identification for the cell

O to allow specific ions or molecules to pass freely

Answers

Answer:

Glycoproteins are molecules that comprise protein and carbohydrate chains that are involved in many physiological functions including immunity. Many viruses have glycoproteins that help them enter bodily cells, but can also serve to be important therapeutic or preventative targets.

Explanation:

this is the correct answer happy

An example of an organism that demonstrates asymmetry is a??

Answers

Answer:

Some of the animals exhibiting asymmetry are flounders and hermit crabs. Adult flounders have both eyes on one side. Hermit crabs have a large claw on one side. In flowering plants, the thanksgiving cactus (Schlumbergera truncata) has irregular, asymmetrical flowers.

Explanation:

Answer:

hermit crabs  

Explanation:

The definition of asymmetry means that two parts of something are not exactly the same. A fiddler crab has one claw that is bigger than the other so that is an example that a fiddler crab's body has asymmetry.

the movement of potassium into an animal cell requires

Answers

Answer:

low cellular concentrations of sodium

Asexual and sexual reproduction in animals is similar in that both
a. increase genetic variation in offspring.
b. produce offspring that have double the amount of genetic information of the parent(s).
c. rely on parental chromosomes to mix in new ways.
d. generate offspring that carry parental genes.

Answers

Answer:

d generate offspring that carry parental genes

The gated channels that respond to physical distortion of the membrane surface are called ________. These channels are important in ________.

Answers

Answer:

mechanically gated channels; sensory receptors

Explanation:

What are the three cell layers of retina, and how does the light travel to get to the receptor layer

Answers

Ganglion layer, Bipolar cells (connect the ganglion cells to the photoreceptor layer),Photoreceptor cells. special cells called photoreceptors turn the light into electrical signals

CAN SOMEONE PLEASESS HELP ME!! Thank uu!!!

Answers

The first one is D and the ones with lowering can help you with the second one either one should work

By keeping food cold, the growth of microorganisms is:

Answers

Answer:

they are called growth because you are training them

The cerebral nuclei are also called the basal nuclei and sometimes are incorrectly called the basal ganglia. Why is this incorrect

Answers

It is incorrect to name basal nuclei as basal ganglia because the term 'ganglia' refers to clusters of cell bodies in the peripheral nervous system (PNS). The basal nuclei are a group of subcortical nuclei.

The basal nuclei are a group of subcortical nuclei located deep in the cerebral hemisphere and midbrain.

The basal nuclei can be defined as a region of the brain that is involved in muscle coordination and movement.

The term ganglia make reference to a group of neurons outside of the central nervous system in the peripheral nervous system (PNS).

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