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Vera_Pavlovna [14]
3 years ago
11

Why do biologists believe glycolysis evolved before the krebs cycle and the electron transport chain?

Biology
1 answer:
ollegr [7]3 years ago
4 0

Answer:

Glycolysis evolved before Kreb's cycle and Electron Transport chain. This view is supported by following facts:

  • Glucose cannot enter the mitochondria and it needs to be broken  down into pyruvate in the cytosol by the process of glycolysis.
  • Pyruvate then forms acetyl CoA that enters the mitochondria where it undergoes Kreb's cycle.
  • The Electron transport Chain occurs by passing of electron and finally donating it to the electron acceptor oxygen. The molecules of NADH  produced in the preparatory phase of glycolysis provides the electron for electron transport chain.
  • Thus Glycolysis must have evolved before Kreb's Cycle and Electron Transport Chain otherwise the raw materials for both the processes would not have been available.

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7. White wool (WW, Ww) and brown eyes (BB, Bb) are dominant traits in sheep, while black wool (ww) and blue eyes (bb) are recess
artcher [175]

Answer:

1/2 wWBb , White wool and brown eyes.

1/2 wWbb , White wool and blue eyes.

Explanation:

White wool (W) is dominant over black wool (w).

Brown eyes (B) is dominant over blue eyes (b).

A sheep with black wool (ww) and brown eyes (Bb) is crossed with a sheep with white wool (WW) and blue eyes (bb).

<h3>wwBb x WWbb</h3>

If there is independent assortment between genes, the genotypes of the first parent's gametes will be wB and wb. The gametes of the second parent can only be Wb.

<u>The resulting offspring will be:</u>

  • 1/2 wWBb , White wool and brown eyes.
  • 1/2 wWbb , White wool and blue eyes.

6 0
3 years ago
Why cannot a population keep increasing forever in an ecosystem?
Dmitrij [34]
A population cannot continue to increase forever because each population has a carrying capacity, which is the max number of organisms that can live in an environment with the available resources. At some point, each population will hit their carrying capacity when they run out of resources.
8 0
3 years ago
Which group of organisms is responsible for the disease shown in the infection cycle??
kkurt [141]
Infection is the invasion of an organism's body tissues by disease-causing agents, their multiplication, and the reaction of host tissues to these organisms and the toxins they produce. Infectious disease, also known as transmissible disease or communicable disease, is illness resulting from an infection.
8 0
3 years ago
If a plant has a high concentration of minerals inside its root cells, but does not have enough energy for active transport, wha
inna [77]

Answer:

The minerals will not be move or transported to other part of the plants because active transport require energy.

Explanation:

Active transport is a process where molecules and ions are move against a concentration gradient by using energy.

This process require energy, for ions or molecules of minerals to be taken up by plants, it is first moved to the root hairs where they are in high concentration against in dilute concentration on soil Active Transport then occur in the roots where it is taken up to the plants with the use of energy.

If there is not enough energy, active transport will not occur and the minerals will remain in the root hair and will not be move to other part of the plant.

8 0
3 years ago
Which cranial bone is found internally rotated should be treated in a case of carpal tunnel syndrome?
Illusion [34]

Right palatine bone is found internally rotated should be treated in a case of carpal tunnel syndrome.

Osteopathic examination showed this. Carpal tunnel syndrome<span> (CTS) is a medical condition is pressure on the nerve or compression of the median nerve which causes pain and tingling. It can get worse, so early diagnosis and treatment is very important.</span>


6 0
3 years ago
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