Respiration

Question 1

What is Respiration?

Answer 1

Respiration is a process of which chemical energy that is stored in glucose is released. Also Respiration is a series of enzyme controlled reactions

Question 2

State the 4 cellular process used for energy releases

Answer 2

1)Cell division
2)Protein synthesis
3) Muscle cell contractions
4) Transmission of nerve impulses

Question 3

State why some cells need a lot more mitochondria than others

Answer 3

It is because they need more energy than others cells such as muscle cells and sperm cells so that’s why it needs more mitochondria

Question 4

What is the first stage of aerobic respiration?

Answer 4

The first stage happens in the cytoplasm. Glucose is broken into pyruvate which produces 2 ATP molecules. This is known as Glycolysis.

Question 5

What is the second stage of aerobic respiration?

Answer 5

The second stage happens in the mitochondria. The pyruvate breaks down to produce Carbon dioxide and Water which produces 36 ATP molecules

Question 6

What are the final products of fermentation in animal and plant and yeast cells?

Answer 6

Final products for fermentation in animal cells : Lactate+ energy

Final products for fermentation in plant and yeast cells : carbon dioxide + ethanol + energy