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Fiesta28 [93]
3 years ago
13

Which of the following events could cause pyruvate and lactate to accumulate in the blood of individuals with PDCD?

Biology
1 answer:
scoray [572]3 years ago
6 0
Mutation causes a defect in one of the three enzyme that processes pyruvate
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In the cell, energy that drives endergonic reactions is often obtained from
IRISSAK [1]

Answer: B) energy released from exergonic reactions.  

Explanation:

Cell metabolism is the set of reactions that occur in the cellular environment to synthesize or degrade biomolecules to produce energy. Synthesis metabolism of biomolecules is known as anabolic (anabolism) and catabolic degradation (catabolism).

Endergonic reaction (product has more energy than reagents) and requires energy to occur. Anabolism occurs when the cell has sufficient energy or substrate. Catabolism, in turn, occurs in situations in which the body needs energy, such as between meals and fasting.

The reactions of anabolism and catabolism are opposite but occur in an articulated manner, allowing the maximization of available energy. Thus, while catabolism occurs spontaneously, an exergonic reaction with ATP production, anabolism is non-spontaneous, or endergonic, requiring energy to occur. In other words energy that drives endergonic reactions is often obtained from B) energy released from exergonic reactions.

5 0
3 years ago
Where can a scientific theory be changed?
Irina-Kira [14]

Answer:  <em> It cant change</em>

Explanation:

A theory does not change into a scientific law with the accumulation of new or better evidence

4 0
3 years ago
true or false? to make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thor
faltersainse [42]

The thorax is a very vital and important organ in the human body.

  • It is a structure that serves as a<u> </u><u>protective covering</u> for organs in the body such as<u> the lungs, the heart, some vital blood vessels</u> e.t.c

It is<u> false</u> that to <em>make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thorax.</em>

  • When a person breathes in,  <u>the chest cavity expands (the volume increases) and the pressure in the thorax decreases.</u>

  • When a person breathes out, <u>the chest cavity decreases in size, and the pressure in the thorax increases. </u>

  • Therefore, we can see that the <u>process of breathing in humans</u>, follows the <u>principle of Boyle's Law.</u>

  • Boyle's law states that as the<u> volume increases there is a decrease in pressure</u> and <u>as the volume decrease there is an increase in pressure. </u>

Therefore, It is <u>false</u> that to <em>make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thorax.</em>

To learn more, visit the link below:

brainly.com/question/24359876

3 0
3 years ago
_____ provides a mechanism by which the chromosome number may be kept the same from one generation to another. Mitosis Meiosis N
Setler [38]
Answer: mitosis.

During DNA replication a pair of chromosomes of from one cell genders two duplicated chromosomes (so the number of chromosomes is duplicated), then in the mitosis process the cell split into two identical cells each with half of the duplicated chromosomes, so at the end one cell with two chromosomes form two cells each with two chromosomes. So, the new generation of cells has the same number of chromosomes.
5 0
3 years ago
Read 2 more answers
Study the structure of the plant growing on the rock in the image. Based on its structure, to which group does the plant belong?
dusya [7]

The plants can be classified based on their vascular and reproductive structures. The plant given in the image belongs to the Bryophyta.

<h3>What is Bryophyta?</h3>

The non-vascular plants that are a part of the plant classification are found in moist places and are small in size belongs to the Bryophyta.

The plant of this classification have a leafy multicelled plant body, that lacks true leaves, roots, and stems.  They are green plants and also contains chloroplast for food synthesis.

The vascular tissue like xylem and phloem are completely absent and hence the transportation does not occur through specialized systems.

Therefore, option A. Bryophyta is the plant growing on the rock.

Learn more about Bryophyta here:

brainly.com/question/1435423

5 0
2 years ago
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