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xeze [42]
2 years ago
9

5. There are many cases of human disease in which one or another enzyme activity is lacking due to genetic mutation. However, ca

ses in which individuals lack one of the enzymes of the citric acid cycle are extremely rare. Why
Biology
1 answer:
Y_Kistochka [10]2 years ago
7 0

Answer:

The citric acid cycle is fundamental to produce the energy needed for aerobic cell metabolism, thereby mutations in the enzymes involved in this metabolic pathway would be lethal to the individual

Explanation:

In aerobic organisms, the citric acid cycle (also known as the Krebs cycle), is a key metabolic pathway used to remove electrons and uses them in the electron transport chain in order to generate adenosine triphosphate (ATP), the energy currency of the cell. The citric acid cycle depends on eight enzymes that oxidize acetyl-CoA into two molecules each of carbon dioxide (CO2) and water (H2O). Thus, the citric acid cycle is a series of chemical reactions that are key to breakdown carbohydrates, fats and proteins into CO2 and H2O in order to produce energy (ATP).

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Initial first aid rendered at the scene of a fire includes preventing further injury through heat exposure. which intervention c
Volgvan
Applying ice to a fire victim leads to tissue hypoxia and necrosis because it will change the skin's temperature too fast and may cause frostbite.  The burn could have had removed a layer of skin, leaving the fragile tissue exposed which will be more sensitive to the ice.
8 0
3 years ago
The initial degradation of plants by microarthropods, bacteria, and fungi occurs in the __________ soil horizon. View Available
DENIUS [597]

Answer:

O.

Explanation:

There are different types of soils and it is made up of different layers or horizon such as A, B, C, O, R and E. Together all the horizons forming soil profile. Each horizon containing different soil types.

O horizon: Known as top layer of the soil which contains layer of organic matter which is about two inches thick, and made up of humus such as decomposing leaves, dark-colored, carbon rich matter, twigs and microbial biomass which is mixed with small grained minerals for the formation of aggregate structures.

3 0
3 years ago
Which observation provides evidence that a cell is most likely a eukaryote?
uranmaximum [27]
That they don't have a nucleus.
6 0
3 years ago
Read 2 more answers
Glucose enters erythrocytes via a GLUT-1 uniporter. As the levels of glucose in the bloodstream decrease between meals, what hap
BartSMP [9]

Answer:

A. Glucose leaves the cell through the GLUT-1 uniporter, traveling down the new concentration gradient.  

Explanation:

The Glucose transporter 1 (GLUT1) protein is a critical uniporter transporter that facilitates the movement of glucose molecules across the plasma membrane. The expression of GLUT1 is increased when glucose concentration is reduced and, inversely, GLUT1 expression is reduced when glucose levels are increased. The erythrocytes are cells that continuously require the supply of glucose from the blood plasma, this mechanism involves the function of GLUT1 that permits the energy-free passage of glucose by diffusion.

8 0
3 years ago
How could the problem of algal blooms be solved?
Luda [366]
Organic farming methods enable farmers and gardeners to prepare soil in such a way that nitrogen is added naturally through nitrogen-fixing bacteria rather than nitrogen having to be added through a synthetic fertilizer. This method of growing crops saves farmers money and alleviates the problems associated with fertilizer runoff
Farmers and gardeners should use other methods to provide crops with the nitrogen they need.


Algal blooms are due to the accumulation of algae, generally Cynabobacteria and Dinoflagellates, that grow due to excess nutrients in water.
If good algae grow, they do not accumulate in the waterbodies.

Diatom Algae are good algae.

Therefore if Diatoms are grown instead of Cyanobacteria and Dinoflagellates, there would be no accumulation and no problem of algal blooms.
6 0
3 years ago
Read 2 more answers
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