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Biology

1 answer:

anyanavicka [17]3 years ago

6 0

It is basically the same thing as oxygen.

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Please help I need a A

Stels [109]

Whats the question???

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4 years ago

Biologists use the fluid mosaic model to describe membrane structure.

allochka39001 [22]

<h2>The correct answers are enlisted below:</h2>

Explanation:

Three correct statements are:

Statement: 1.
Statement: 2.
Statement: 3.

The cell membrane is comprised of a phospholipid bilayer that remains interspersed with protein molecules.
Each phospholipid molecule is comprised of:

A glycerol molecule linked with the help of ester bonds to,
one phosphate group,
two fatty acid (saturated or unsaturated) molecules.

Being hydrophilic in nature, the phosphate group faces outside the lipid bilayer forming hydrogen bonds with the water molecules.

Being hydrophobic in nature, the fatty acid molecules faces to the interior of the bilayer avoiding contact with water and forming hydrophobic interactions with each other.
The saturated fatty acid molecules have a straight hydrocarbon chain as they lack any double bonds. However, the unsaturated fatty acid molecules possess multiple double bonds that generate a kink or bent in their structure. The kink causes the molecules to occupy more space in the bilayer and also help these molecules to move laterally about their position, thereby generating fluidity in the membrane.
The lateral movement of the lipid molecules also causes the lateral movement in the interspersed protein molecules.
The interspersed protein molecules has various functions like, they act as channel proteins, carrier proteins, receptor proteins, etc.

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4 years ago

The Viceroy butterfly is not poisonous but has coloration that is almost identical to the poison monarch butterfly. Which type o

emmainna [20.7K]

C. Mimicry

Mimicry is the similarity of one organism to another due to selective favouratism.

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4 years ago

Read 2 more answers

What was a positve aspect of interaction between French settlers and American Indians?

daser333 [38]

1: American Indians gained access to manufactured goods.

4 0

4 years ago

The white mater is composed of

ratelena [41]

Answer:

The correct answer is option A.

Explanation:

White matter is the component of CNS which consist neuron cell bodies or myelinated cell axons or nerve fiber collectively known as fiber tracts mainly. Glial cells also one of the component of white matter, made up of few sulci and gyri. White matter makes superficial regions of the spinal cord and deep parts of the cerebrum.

The neuron cell bodies of white matter sends signals to neurons and each other. White matter regulates the action potentials function as coordinators in between brain parts.

Thus, the correct answer is option A.

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3 years ago