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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).

You might be interested in
Explain three differences between apomictic and automictic parthenogenesis.
a_sh-v [17]
Apomictic refers to plants and it means the offspring is genetically identical to the parent. Automictic means that gametes fuse after meiosis - which means offspring are genetically not identical to parents.
6 0
3 years ago
n mice, dwarfism is caused by an X-linked recessive allele, and pink coat is caused by an autosomal dominant allele (coats are n
nexus9112 [7]

Answer:

The probability of getting a dwarf and pink female is 1/2

Explanation:

In mice, dwarfism is caused by an X-linked recessive allele, and pink coat is caused by an autosomal dominant allele where coats are normally brownish.

A dwarf female from a pure line will have Xd Xd where d represent the  recessive trait and the female is also brownish (pp).

A pink male from a pure line will be XPY where P represent the dominant allele but not a dwarf (D).

            Xd             Xd                            Xp          Xp

XD       XDXd        XDXd             XP    XPXp     XPXp    F1 generation

Y           XdY           XdY                Y     XpY        XpY

P        XDXd   x    XdY                        XPXp    x    XpY

           XD         Xd                               XP              Xp

Xd     XDXd    <u>XdXd</u>                  Xp    <u>XPXp</u>         XpXp         F2 generation

Y        XDY        XdY                   Y       XPY          XpY

The probability of getting a dwarf and pink female is 1/2

5 0
3 years ago
Why do living things store energy in lipids instead of in carbohydrates?
Burka [1]
Because carbohydrates can be converted into energy but can not store energy.
7 0
3 years ago
Which blome would you not find trees or deep rooted plants in?
Romashka [77]
Tundra

Tundra is a biome that is located in the coldest regions of the world. This is characterized by short growing seasons and low temperatures. The plants growing in these regions are short perennials.

Hope this helps :)

Have a great day!
3 0
2 years ago
The leaves of which plant below show the best structural adaptation for protecting the plant from predators?
omeli [17]

Answer:

the cactus

Explanation:

it has spikes that can harm the predator

4 0
3 years ago
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