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frutty [35]
3 years ago
7

In cells, genes are segments of DNA that code for proteins; not sugars or complex carbohydrates, or lipids, but proteins. The co

de in the sequence of nucleotides in a gene specifies the sequence of nucleotides in messenger RNA which in turn specifies the sequence of amino acids in a protein. The sequence is variable because of mutations which can change the sequence of amino acids in the protein coded for by that gene. Therefore, in evolution, a change in a single code for a single amino acid may have an effect on individual survival. Proteins carry out many functions in a cell such as:
Biology
1 answer:
Evgesh-ka [11]3 years ago
5 0

Answer:

Explanation:

Proteins are involved in almost every function of cell and inside the body and each protein is specific for its role. Some of them are  

1) Protein constitute major part of structure of cell. Proteins are major constituent of cell membrane along with lipids.  

2)  Enzymes which are proteins in nature catalyze all the important chemical reactions inside and outside the cell e.g transporting material across the cell, synthesizing and repair of DNA

3) Hormones which are proteins play important role in the regulation of metabolic reactions inside the cell

4)  Regulation of cell division is performed by DNA-associated proteins  

5)  Proteins plays important role in storage of iron inside the cells

6) Proteins can be stored as fats inside the body and used as energy when needed by cells for its metabolic activities.  

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Which of the following is not a property of a gas?
elixir [45]

properties of gases

it has definite mass

indefinite shape

indefinite volume

so here we can say that gas have indefinite volume not definite so therefore the answer will be A

3 0
2 years ago
What are the terms used to describe the movement of air into and out of the lungs?
slavikrds [6]
- pulmonary ventilation.
7 0
3 years ago
Vocabulary: aerobic respiration, anaerobic respiration, ATP, cellular respiration, chlorophyll, chloroplast, cytoplasm, glucose,
disa [49]

Answer:

The correct answer is -

1. photosynthesis and cellular respiration

2. glucose and cellular respiration

3. O2

4. C6H12O6

5. CO2

6. H2O

Explanation:

For the survival and growth of a plant, there are several functions and structure are essential but two most important parts are photosynthesis that provides food and glucose for the plant and its nourishment and other is cellular respiration which is required to convert glucose into ATP a form of energy.

In animals, photosynthesis is not possible so they depend on the plants and other sources for glucose and another important process for growth and survival is cellular respiration.

The chemical formula of oxygen, glucose, carbon dioxide, and water is as follow:

3. O2 - oxygen

4. C6H12O6 - glucose

5. CO2 - carbon dioxide

6. H2O - water

6 0
3 years ago
Which selection from the article BEST supports the idea that the sun is necessary to the Earth?
LenKa [72]

Answer:I believe the answer is A

Explanation:

B and C have nothing to do with how the sun helps or is a necessity. D only talks about the life span of the sun not how it is necessary for the earth. A is the only answer that makes sense because it gives examples on how the sun helps the earth as well as human kind.

3 0
3 years ago
At what temperature does water exist as a solid???
DaniilM [7]
Water exists as a solid at or below 0 degree Celsius.

At 0 degree Celsius, water can go through a phase change, either freezing or melting, depending whether energy is given or taken away. If the temperature is below 0, water should exist as solid as the temperature is lower than its melting point. If the temperature is right at 0 degree, the water can partially be solid and liquid at the same time, during phase change.

Therefore, water exists as solid at or below 0 degree Celsius.

4 0
3 years ago
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