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Eva8 [605]
3 years ago
10

Amino acids differ from one another by the ________________ that is present

Biology
1 answer:
olasank [31]3 years ago
6 0

Answer:

C. R group

Explanation:

Amino acids are the monomers for proteins. Various amino acids are joined together by peptide bonds to form polypeptides.

All standard amino acids have a central chiral carbon atom to which four functional grouped are bonded. All the amino acids have one carboxyl group, one amino group and one hydrogen atom bonded to the central carbon atom.

However, the chemical nature of the "R group" differentiates various amino acids. For example, alanine has a "CH3" group as an R group while glycine has one more hydrogen atom as its R group.

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These statements describe three different reactions.
Arte-miy333 [17]

Answer: 2 - The nucleus of an atom is split apart

Explanation: Any reaction involving the nucleus of an atom is called a nuclear reaction. It is different from ordinary chemical reactions that involve electrons because it involves the release of large amount of energy. Nuclear reactions can be classified as nuclear fission and nuclear fusion.

A nuclear reaction in which a nucleus of an atom is split into two smaller atoms with a release of large amount of energy is called nuclear fission. A nuclear reaction that involves the combination of lighter nuclei of elements to form heavier atoms that are more stable with the release of a large quantity of energy is called nuclear fusion.

5 0
3 years ago
How can humans have a positive impact on air quality?
Ne4ueva [31]

Answer:

by using public transportation instead of driving a car. O by moving to a large city, where air quality is better. by removing vegetation such as trees and shrubs. What is the answer.

Explanation:

# need any queshtions answered within minutes/seconds text me

-we all have those moments where we need those queshtions answered like that!

3 0
3 years ago
Which of the following is not a way to prevent cancer?
svetlana [45]
Smoking has been statistically identified as a <em><u>causative</u></em> element in the development of cancers of the lung, tongue, esophagus, and stomach.
It's certainly not a <em>prevention</em> in any way. 
6 0
3 years ago
Humans are diploid organisms, and their gametes contain 23 chromosomes. Fill in the blank in each sentence using the terms. Each
USPshnik [31]

Answer:

2n, n, diploid

Explanation:

<em>When the somatic cells of human are in interphase, the ploidy level is denoted as </em><em>2n (diploid)</em><em>. The ploidy level of the human's gametes is denoted as </em><em>n (haploid)</em><em>. The 2n number of a human is </em><em>diploid</em><em>.</em>

Somatic cells are also known as vegetative cells and all somatic cells of humans have diploid number of chromosomes. At interphase, the number of chromosome remains diploid (2n) but the amount to DNA is doubled at the synthesis phase of the interphase.

Human gametes are formed through meiosis - the division of sex cells in the human body. Meiosis results in the halving of number of chromosomes of cells. Hence, all human gametes contain half the number (n = 23) of chromosome of vegetative cells.

Humans are diploid organisms with diploid (2n = 46) number of chromosomes in their vegetative cells.

5 0
3 years ago
IN every energy transformation some blank is released
Charra [1.4K]
In every energy  transformation, some THERMAL ENERGY is released.

When you climb a rope, you change CHEMICAL ENERGY INTO KINETIC ENERGY.

 In the muscles cells in your body, CHEMICAL ENERGY is changed into KINETIC ENERGY.

Energy can neither be created nor destroyed, because of this, energy usually remain constant but it can be converted from one form to another.
i just had to do this  lol


7 0
3 years ago
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