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vredina [299]
3 years ago
12

What are the two primary roles of the cell membrane?

Biology
1 answer:
Marizza181 [45]3 years ago
7 0

Answer:

(1) they keep toxic substances out of the cell; (2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles and between the cell and the outside environment

Explanation:

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What is the Difference between DNA & RNA?
Travka [436]
DNA is deoxyribonucleic acid while RNA is ribonucleic acid !

DNA has base pair of adenine guanine thymine and cytosine.....while RNA has adenine guanine cytosine and uracil !

DNA is always double helix while RNA is mainly single helix !

DNA contains genetic info for 99℅ of organism while RNA is being catalytic and unstable than DNA is only present as genetic information holder in 1℅ !

DNA does not involve in protein synthesis directly but RNA has to !

for more difference, comment !
8 0
3 years ago
During translation, what kind of bond is formed between amino acids?.
777dan777 [17]

Answer:

Peptide bonds

Explanation:

During translation peptide bonds are formed from the (N) to the (C) terminus by removal of water also referred to as dehydration or condensation and catalyzed by RNA referred to as a ribozyme that forms part of the ribosome.

5 0
2 years ago
Is all the options increase, which ones would serve to remove CO2 from the atmosphere?​
levacccp [35]

Answer:

A. Photosynthesis

Explanation:

Photosynthesis is a process in plants produce food materials by absorbing carbondioxide from the atmosphere which decreases the concentration of carbondioxide in the atmosphere. In photosynthesis reaction, plant take water from the soil and carbondioxide from the atmosphere in the presence of sunlight produces glucose and oxygen. Glucose is stored in different parts of plant such as grains, stem and roots while oxygen is released in the atmosphere.

8 0
3 years ago
_____ is a physical property of matter.
viva [34]
I think the answer is D
4 0
3 years ago
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What are the nator new substances (molecules) in a chemical equation called?
mylen [45]

Answer:

A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.

8 0
3 years ago
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