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meriva
3 years ago
7

What are special proteins that catalyze (speed up) chemical reactions?

Biology
1 answer:
raketka [301]3 years ago
4 0
The enzymes are the special types of proteins which decreases the activation energy of the chemical reaction. The activation energy is the minimum amount of energy required to start a chemical reaction. Hence the enzymes are the special type of proteins that catalyses or speed up the chemical reaction by decreasing the activation energy of the reaction. Hence the correct answer is option C. Enzymes.
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In which atmosphere layer do humans live most of their lives
alexandr402 [8]

Answer:

Troposphere.

Explanation:

Humans live most of their lives in the troposphere atmosphere.

3 0
3 years ago
A certain Drosophila protein-encoding gene has one intron. If a large sample of null alleles of this gene is examined, will any
Alex

Answer:

a) Yes

b) Yes

c) Yes

d) Yes

Explanation:

a. In the exons?

Yes mutant site will be expected. It will transcript-ed as well and it can be a polypeptide depending on the mutation type.

b. In the intron?

Yes mutant site will be expected. It will be transcript-ed as well and it cannot be a  polypeptide  

c. In the promoter?

Yes mutant site will be expected. It will not be transcript-ed and it cannot be a  polypeptide

d. In the intron-exon boundary?

Yes mutant site will be expected. It will be transcript-ed and it cannot be a  polypeptide

3 0
3 years ago
Which kind of worm is the scientist most likely studying?
Veronika [31]

Answer:

Roundworm

Explanation:

Unsegmented kicks out the possibility of A or D.  Roundworms are pointed at their ends and have distinct males and females

8 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
kirill [66]

Answer:

Cause: Earth’s magnetosphere traps radioactive  solar wind particles in bands around Earth → Space travel through the Van Allen  belts is dangerous.

Cause: Earth is surrounded by a magnetic field → Effect: Solar wind deflects toward the poles.

Cause: Solar wind particles interact with Earth’s  upper atmosphere → Effect: An aurora is created

Explanation:

I have been able to drag the tiles to the correct boxes to complete the pairs.

When there is a trapping of radioactive solar wind particles in bands by the earth's magnetosphere, it becomes dangerous to travel in space through the Van Allen. Cosmic rays and solar particle add up to the additional hazards that it poses. A Van Allen radiation belt is known to be a zone  where energetic charged particles are found. Most of the energetic charged particles originate from the solar wind.  The solar wind  are captured by and held around a planet by that planet's magnetic field.

When the solar wind interacts with the earth's atmosphere, there is a collision of atoms of oxygen and nitrogen from the earth's atmosphere. The energy that is formed is a colorful glowing halo which is known as an aurora.

3 0
2 years ago
Please help
Virty [35]

Answer:

There are concrete evidences of chimpanzees in wild part of Tanzania do intake Vernonia amygdalina, which possess anti-parasitic properties and hence helps in treatment of parasitic infestations.

Explanation:

On critical scientific analysis of vernonia amygdalina, it is observed that vernonia contains various lactones and glucosides steroids which showed anti-parasitic property. But the self medication hypothesis is not at all agreeable. Because chimpanzees don't have such brain to judge which things has medicinal values or from which infections or diseases they are suffering. It is perhaps observed that vernonia taste bitter and often animal take bitter food that triggers in them the feeling of satiety or reverse peristalsis to get rid of excess food by vomiting.

8 0
3 years ago
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