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irina1246 [14]
3 years ago
6

What differentiates one amino acid from the other?

Biology
1 answer:
Andrews [41]3 years ago
6 0

Answer: B) R group

Explanation: An aminoacid is composed by an amino group, an acid or carbonyl group and a side chain or R group, all bonded to a central carbon atom. Aminoacids are different between them for the R group and can be classified as: 1) Non-polar Neutral if the side chain is uncharged and non-polar (aliphatic or  cyclic). 2) Polar Neutral if the side chain contains amida, sulfur or hydroxyl groups. 3) Basic if the side chain contains other amino groups. 4) Acid if the side chain contains other carboxyl groups.

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How many NADH molecules are produced on each turn of the citric acid cycle?
gayaneshka [121]

Answer:

Three

Explanation:

Citric acid cycle or tricarboxylic acid (TCA) cycle is the part of cellular respiration. This cycle is carried out in the mitochondria matrix. Citric acid cycle begins with the entry of 2 carbon compound acetyl Coenzyme A (CoA). In one turn of the cycle, one molecule of acetyl CoA enters into the cycle. On completion of one turn of  citric acid cycle, two molecules of carbon dioxide, 3 molecules of reduced NADH and one molecule of reduced FADH₂ and 1 molecule of GTP are produced.    

5 0
3 years ago
During the Berlin Conference, who was granted control of the Congo Free State?
nadya68 [22]

Answer:

leopold

Explanation:

In 1884-85, a conference held in Berlin, Germany, decided the colonial status of central Africa. Suspicious of each other's ambitions in the region, the European powers and the United States agreed to grant Leopold possession of the Congo River basin.

6 0
3 years ago
What 3 molecules that aren't DNA helps us learn about evolution?
max2010maxim [7]
We know, DNA is the main molecule by which scientists can learn about evolution by comparing the DNA structure between two different organisms. 
But, in addition to DNA (which is most helpful & important) still, there are 3 molecules that can help us, They are:

1) RNA : - It is found in cytoplasm, as DNA transfers it's codes into RNA during Central dogma, it can help us in evolution studies.

2) Proteins: - Another helpful feature, into which RNA transforms in Central Dogma.

3) Pseudogenes: - It is also known as "Non-coding DNA" It is extra <span>DNA in a genome that do not get transcribed into RNA to synthesize proteins. They can also help us in Evolutionary studies.

Hope this helps!</span>
4 0
3 years ago
Explain the effects of osmosis on cells and tissues:
viva [34]

Answer:

In explanation.

Explanation:

Effect of osmosis on cells:

-Osmosis is the movement of water across a cell membrane. Cells use osmosis to maintain concentration equilibrium (the concentrations of solute inside and outside the cell are equal). Changing the amount of water allows the cells to achieve equilibrium.

Effects of osmosis on tissues:

-Red blood cells placed in a solution with a higher water concentration compared to their contents (eg pure water) will gain water by osmosis, swell up, and burst. Water will diffuse from a higher water concentration outside the cell to a lower water concentration inside the cell.

Hope this helps.

6 0
3 years ago
The physician did a visual examination of the vagina and cervix to note changes in the cells and capillary network. the procedur
Misha Larkins [42]

The procedure that takes place with the examination procedure is the colposcopy. This is the examination used in having examine the cervix and vagina of a female individual in means of having to identify if there is any presence of disease.

7 0
4 years ago
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