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Snezhnost [94]
3 years ago
15

The electron transport chain is composed primarily of what biomolecule?

Biology
1 answer:
lys-0071 [83]3 years ago
3 0

The correct answer is proteins.

The oxidative phosphorylation in the eukaryotes takes place within the mitochondria with the help of electron transport chain. The main objective of the electron transport chain is to accumulate enough amount of protons in the intermembrane space so that there will be a concentration gradient which would help in the production of ATP.  

The electron transport chain comprises of various molecules, but majorly the proteins, which are situated in the inner membrane of the mitochondria.  


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Cortisol is a hormone produced in response to stress, including starvation, in humans. Which of the following is most likely an
topjm [15]

Complete Question:

Cortisol is a hormone produced in response to stress, including starvation, in humans. Which of the following is most likely an immediate effect of a starvation-induced increase in cortisol secretion?

(A) Increased activation of the immune system

(B) Increased urine production by the kidneys

(C) Increased bone and collagen formation

(D) Increased mobilization of fatty acids from fat cells

Answer: Increased mobilization of fatty acids from fat cells.

Explanation: Cortisol is a hormone produced in response to stress, including starvation, in humans. Immediate effect of a starvation-induced increase in cortisol secretion is the increased mobilization of fatty acids from fat cells (Adipose tissue).

Starvation occurs when an animal doesn't feed due to unavailability of food. The body system makes use of stored glycogen which is synthesized to glucose by hormonal secretion of glucagon by the pancreas.

However, when the glucose converted is finished. Cortisol is secreted, which then initiate the mobilization of fatty acids as source of energy from the adipose tissues (fat cells) in the body system.

7 0
4 years ago
Gene cloning can involve inserting genes into
nydimaria [60]
Plants because it can turn it in to something
5 0
3 years ago
Select the correct answer. in which terrestrial biome would you find precipitation of 300 to 900 millimeters (mm) each year? a.
Jlenok [28]

In coniferous forests, the terrestrial biome receives precipitation of up to 300 to 900 millimeters (mm) each year.

Coniferous forests mainly consist of conifers and grow trees that produce thick needles and cones instead of growing flowers and leaves.

These are evergreen plants and stay green, healthy, and sustainable all year long.

In spite of flowers, these trees bear needles annually.

Moreover, conifers are very adaptive trees that can grow in very cold and dry climate zones.

It is due to their adaptability that they can survive all year long without losing a life.

Siberian fir, Dahurian, and Siberian larches are examples of confer forests.

If you need to learn more about conifer plants click here

brainly.com/question/2663607

#SPJ4

5 0
2 years ago
A mushroom growing around a tree trunk is an example of what
Aliun [14]

Answer:

Mushrooms indicate root or trunk problems

Mushrooms typically grow on dead wood or on some other matter that is rotting.

5 0
3 years ago
Which organelle turns energy from the sun into energy the cell can use to make food? cell wall?
lord [1]
The answer would be the chloroplast. The cell wall mainly covers and protects the cell's insides. 
8 0
3 years ago
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