Help Please!!! Points will be rewarded!!!!!!
Cell membranes are very important for all cells, because their selectively permeable structure allows materials to enter and exit the cell through passive and active transport.

This is possible because cell membranes have a ______ which allows both surfaces of the membrane to interact with water and other molecules.

A. Carbohydrate wall

B. Protein trilayer

C. Phospholipid bilayer

Answers

Answer 1

Answer:

phospholipid layer....

Answer 2

Answer:

Phospholipid bilayer

Explanation:

I studyed this a long time ago


Related Questions

Which best describes a codon?
a cell structure that gives the master instructions for an organism
a segment of DNA that is the basis of heredity in organisms
the sequence of three bases that codes for a specific amino acid
the basic unit of structure and function of all living things

Answers

Answer: the sequence of three bases that codes for a specific amino acid

Explanation: I took the test and i got this answer correct so i hoped this helped!!

Codons are generally a sequence of three bases in the DNA and RNA that codes for specific amino acids. So option C is correct.

What is a genetic code?

A genetic code is a set of information that helps to convert the genetic information stored inside the genetic material into a defined sequence of amino acids called a protein.

Though the DNA has nucleotide sequences that contain information for producing the proteins, the DNA cannot directly synthesize the proteins. It is first converted to mRNA in order to be translated into a specific protein.

There are in total 64 codons, out of which 61 code for specific amino acids while the remaining three codons are known as stop codons and are used in terminating the process of translation of proteins.

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In what ways is packaging an important use of energy and materials

Answers

Answer:

Packaging allows products/goods to be kept inside. The goods alone is what people need or want. Because of this, too much sophisticated packaging wastes energy and materials, so it can produce, distribute, dispose, and recycle it.

Answer:

the material you are using is a material being wasted

Explanation:

Which is the role of the gall blabber

Answers

The gallbladder stores and concentrates bile from the liver before systematically releasing it into the dueodenum of the small intestine.

explain why glycogen makes a good storage molecule

Answers

Answer:

Glycogen is insoluble due to the fact it is such a large molecule.

Explanation:

These extra branches mean the stored glucose can be released very quickly - something that is very important. also found in animals.

Which systems work together to fight infection in the body?

Answers

The lymphatic system produces antibodies to fight germs and infection and filters your circulatory system of leaked liquids to prevent your body from inflating like a balloon. The lymphatic system works closely with the digestive system and the circulatory system.

What does the suffix -zygous mean? (Genetics)

Answers

Answer:

Having a zygotic constitution of a specified kind:heterozygous.

Answer:

relating to the word zygous

i.e. heterozygous

Where do you think the oxygen that
we breath in comes from?

Answers

Answer:

plants

Explanation:

all green life gives us oxygen, and in turn we give c02 or carbon dioxide

please identity each of these weed by their botanical names​

Answers

Answer:

I cannot see it properly , can you take a better picture???

Explanation:

Answer:

neemgulmohartulsi

hope it helps

Hi i need help with this Punnet square table , please help if you can!!!

Answers

Answer:

Explanation:

We need to know the parents eye color but I can still kind of answer the question

Answer:

you will have a 1/4 chance to get brown eyes and a 3/4 chance of having blue eyes

Explanation:

Why do you think scientists call both liquids and gases by the same term-fluids?

Answers

Search Results
Featured snippet from the web
A gas fills its container, taking both the shape and the volume of the container. Liquids and gases are called fluids because they can be made to flow, or move. In any fluid, the molecules themselves are in constant, random motion, colliding with each other and with the walls of any container.

Colour blindness is a sex linked-linked disorder.
Caused by the alleler on the X chromosome. The Y
chromosome does not have a gene for this
disorder. Draw a punnet square to show how two
people without colour blindness can have a child
with
PLEASE HELP

Answers

The mother could be a carrier (x^h x) which would result in a 50% change 1 of her sons (x^h y) which I have written in blue, could be colorblind

How does the chromosome number of daughter cells compare with the amount of chromosomes in parent cells?​

Answers

Answer:

Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.

Explanation:

How might retaining too much heat be a disadvantage to an organism?

Answers

One disadvantage of having a large surface area to volume ratio is the heat loss. An organism that has larger surface area has high rate heat gain and heat loss. Therefore they need to eat or acquire nutrients faster in order to sustain life.

Excessively heat can damage the plasma membrane and disrupt subcellular structures such as membrane proteins and enzymes.

What are subcellular structures?

The following are the primary subcellular structures found in animal cells: The nucleus is where genetic material is stored.

Cell membranes regulate what enters and exits the cell. Mitochondria: aerobic respiration site. Ribosomes are the sites where proteins are synthesized.

Protein denaturation occurs at high temperatures and affects protein folding, bonding, and other types of behavior.

Furthermore, membrane proteins play an important role in cell function regulation. If these are disrupted, the system will be unable to maintain homeostasis, or a stable internal environment.

Heat can damage the plasma membrane and disrupt subcellular structures like membrane proteins and enzymes.

Thus, this way, retaining too much heat can be a disadvantage to an organism.

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What would be the calculated population density of diamondback rattlesnakes if there were 20 snakes
living in an area of desert that is 20 square kilometers?

A) 1 rattlesnake per square kilometer

B) 10 rattlesnakes per square kilometer

C) 40 rattlesnakes per square kilometer

D) 5 rattlesnakes per square kilometer

Answers

Answer:

Choice A

Explanation:

If there is 20 snakes living in an area of desert that is 20 square kilometers that means we should get how many snakes are in 1 km and that's only 1 because you would do 20/20.

Q35. (2pts) Describe how the antidote (treatment) helped Jared's cells make ATP (include the ETC and H+ gradient in your answer).
This is from gizmos if you know this pls help me out

Answers

Answer:

The antidote entered into Jared's cell and targeted the cyanide that was disrupting his Electron Transport Ch...

Explanation:

The antidote entered into Jared's cell and targeted the cyanide that was disrupting his Electron Transport Chain. The antidote changes the cyanide into a molecule called thiocyanate. Jared’s body can now remove this molecule through his excretory system. As the cyanide is removed, electrons can now leave the ETC by reacting with O2 to make water. His ETC can now get new electrons from NADH this then means he is able to move more H+ into the inter-membrane space. Jared’s cells can now make ATP again.

The antidote binds cyanide. This binding impedes cyanide to inhibit the cytochrome oxidase action. As the cytochrome reactivates, electron transport reactivates as well, and ATP is synthesized again.  

---------------------------------------------------------------------

Ion cyanide inhibits cellular respiration by binding to the ferric ion of cytochrome oxidase and blocking the electron transference.

Because the electron transporter chain is interrupted, there is no ATP production, and muscles do not get enough energy.

The antidote enters Jared's cells and targets cyanide.

When the antidote meets cyanide, it binds to this last one and blocks its effect on cytochrome oxidase.

As cyanide can no longer bind the ferric ion of cytochrome oxidase, the enzyme remains active, and the electron transport is reactivated.

As electrons move along the chain, protons are pomped to the intermembrane space.

ATP production reactivates again as well because the proton gradient is used to produce ATP molecules.

--------------------------------------------------------------------------------

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When the figure skater had her arms out, she was spinning slowly. The more she pulled her limbs in, the faster she spun. Why did she start spinning faster when she pulled her arms in?

Answers

Answer:  She spun faster because her mass was closer to her center of rotation. The rate of spin increased to conserve angular momentum.

Explanation:  plato answer

1. results in no motion of the object because forces are equal and in opposite directions
A. blanced forces
B. Unblanced forces

Answers

Answer:

Balanced Forces

Explanation:

When the forces acting on an object have equal strength and act in opposite directions, they are balanced.When the forces acting on an object are unbalanced, they do not cancel out one another.

Homeostasis is maintained by which of the following organ systems in humans?
A. Multiple organ systems working together
B. The muscular system
C. The endocrine system
D. The nervous system

Answers

A. Multiple organ systems working together

Explanation:

All of the organ systems work together to maintain homeostasis in humans because each system does something different. For example, the circulatory system delivers oxygen rich blood to the bones and the bones create new blood cells. When one thing is wrong with one system, it affects all of the systems, like a disease. Another example of this would be the central nervous systems and endocrine working together to coordinate messages to the brain about the body's state while resting and exercising to maintain homeostasis.

What is thermal energy? Why do we need it?

Answers

Answer:

Thermal energy is basically heat and we need it because without heat we would not have any warm feelings in our houses and stuff...

Explanation:

Answer:

Thermal energy is defined as a type of energy which is contained within a system which is responsible for temperature rise.

we need it because without heat we would not have any warm feelings.

Explanation:

where in the cell does the electron transport part of the cellular respiration occur ?

Answers

Answer:

mitochondria

The Krebs cycle and electron transport occur in the mitochondria. The Krebs cycle takes place in the matrix, and electron transport takes place on the inner membrane. During the Krebs cycle, pyruvate undergoes a series of reactions to produce two more molecules of ATP and also several molecules of NADH and FADH2.

What usually happens to an ecosystem after a sudden catastrophic change?



Please answer quickly

Answers

Answer:

Explanation:

What occurs is ecological succession. When an entire ecosystem is suddenly changed due to a catastrophic scenario it gets replaced by another. Other plants or animals replace the ones that got wiped out in an event such as a big forest fire or flood. Only if the place of the catastrophe somehow becomes uninhabitable another ecosystem won't come out of the old one.

When the net force of opposite forces is zero, the forces are
A)
not even
B)
unequal
C)
unbalanced
D)
balanced

Answers

Answer:

balanced

Explanation:

Answer:

D.) Balanced

Explanation:

if 2 forces push ir pull on an object in opposite directions, and the two forces cancel Each other exactly, the net force is zero

please help idk what’s the answer

Answers

Answer:

first is the right answer

In periods of hot, dry weather, the small pores (holes) on the surface of leaves of most plants will close in order to reduce water loss. When these pores are closed, carbon dioxide is restricted from entering the leaf. As a result, what product will also decrease? a. Cellular respiratory b. Water c. Glucose d. Carbon dioxide

Answers

c.Glucose

The stomata of plants will close during hot and dry day. This cause a decrease in concentration of carbon dioxide and increase in oxygen concentration in the plant. Photorespiration occur.

As carbon dioxide in photosynthesis is used to produce glucose molecules, the production of glucose molecule will decrease.

if random chromosome alignment already shuffles chromosomes around so the eggs and sperm get a good mix of some “mom” alleles and some “dad” alleles, why do we even need to do crossing over

Answers

Answer:

The correct answer is - to produce recombinant that leads to genetic variation.

Explanation:

Random shuffling or random alignment of the chromosome during gamete formation allows the formation of new allele combinations. In the crossing over the parts of the homologous chromosomes are switched between homologous and recombinants are formed that shows are genetic variation.

So, now they have different allele combinations and chromosome combinations as well. Random shuffling does not provide genetic variations as crossing over

which is the smallest unit of measurement? (out of these) centimetre micrometre millimetre nanometre

Answers

Answer:

Nanometer

Explanation:

A Nanometer is 1000 time smaller than a Micrometer and  a micrometer is 1000 time smaller than a millimetter and so on.

The smallest unit of measurement among the options given is the nanometre (nm).

What is the unit of measurement?

A unit of measurement is a defined quantity used to express a physical quantity such as length, mass, time, volume, or temperature. Units of measurement provide a standard reference for comparing and measuring physical quantities.

There are several systems of units used around the world, including the International System of Units (SI), the British Imperial System, and the United States Customary System. The SI system is the most widely used system of measurement, and it is based on the metric system.

SI units are defined using a set of base units, such as the meter for length, the kilogram for mass, and the second for time. Other units, such as the Newton for force or the Watt for power, are derived from these base units.

In addition to the SI units, there are also non-SI units that are widely used in various fields, such as the Angstrom for measuring atomic distances in chemistry and the knot for measuring speed in marine and aviation industries.

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What do you think caused people to accept the heliocentric model of the solar system?

Answers

Answer: The heliocentric model was generally rejected by the ancient philosophers for three main reasons: If the Earth is rotating about its axis, and orbiting around the Sun, then the Earth must be in motion. ... Hence, the Earth must be stationary.

Explanation:

Identify what A and B are.

A- a Wiffle ball B-some messed up teeth - you should floss more...
A-nucleolus B-the process of translation has occurred and produced a strand of mRNA inside the nucleus. It is
now leaving the nucleus and is headed to start the process of transcription
A-nucleus, B-the process of transcription has occurred and produced a strand of mRNA inside the nucleus. It is
now leaving the nucleus and is headed to start the process of translation
A-transcription B-translation

Answers

Answer:

Answer b is the right one

If an individual has the genotype Bb, what alleles can it pass on to its
offspring?
A. Only B
B. Neither B norb
C. Either B or b
D. Only b

Answers

The answer is C. Either B or b

If a person possesses the genotype Bb, either the B or the b alleles can be passed on to their progeny. So, the correct option is C.

What is Genotype?

An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual carries inside a specific gene or genetic region are also referred to as the genotype.

The term "genotype" relates to an organism's whole gene pool, or, in other words, the genetic make-up of that creature. The phrase can also be used to describe to the alleles, or different forms of a gene, that an organism carries in a more specific meaning. Symbols can be used to symbolise it. For illustration, BB, Bb, and bb could be used to denote a certain gene variant.

If a person has the genotype Bb, as in the example above, then either the B or the b alleles can indeed be passed on to their progeny.

Therefore, the correct option is C.

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I need help please if your smart only lol.

Answers

The answer you are looking for is D.

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