CELLULAR RESPIRATION - Q2

Cellular Respiration

It is the metabolic process by which organisms

convert glucose into adenosine triphosphate

(ATP), the main energy currency for cells

Cellular Respiration

It occurs in mitochondria (mainly)

Required for energy to support life processes

Cellular Respiration

This process powers essential cellular

functions like muscle contraction, nerve

impulses, and cell division, making life

itself impossible without it.

Cellular Respiration

By breaking

down molecules like glucose, it provides the

energy needed for cells to grow, repair, and

maintain themselves.

Three

How many major stages does Cellular respiration have?

Cellular respiration

1.Glycolysis

2.Krebs Cycle (Citric Acid

Cycle)

3.Electron Transport Chain

(ETC) are stages of?

ATP is produced at each stage

What is produced at each of the stages of cellular respiration?

glucose + oxygen ——> carbon dioxide + water + energy released

What is the overall chemical equation of Cellular respiration?

Aerobic respiration

It is when oxygen is

used to break down respiratory

substrates. what specific cellular respiration is this?

Glucose

The main respiratory

substrate of cellular respiration is what?

Glucose is oxidized

What happens to glucose that makes it release its energy during aerobic respiration.

cytoplasm

The first stages of respiration occur in which part of the cell?

Mitochondria

What part of the cell is the main site for respiration?

Glycolysis

What is stage one of cellular respiration?

Krebs Cycle

What is stage two of cellular respiration?

Electron Transport Chain (ETC)

What is stage 3 of cellular respiration?

Cytoplasm

Where does glycolysis happen?

Glycolysis

What happens: One molecule of glucose (a six carbon sugar) is broken down into two molecules of pyruvate (a three-carbon molecule). What stage of cellular respiration is this?

Glycolysis

The products of this stage of cellular respiration is a net gain of two ATP and two NADH molecules.

Mitochondrial matrix

Where does the Krebs cycle happen?

Krebs Cycle

Acetyl-CoA is broken down in this stage of cellular respiration

Krebs Cycle

This stage of cellular respiration produces 2 ATP, 6 NADH, 2 FADH2 and release C02 as waste.

Inner mitochondrial membrane

Where does Electron transport Chain (ETC) happen?

Electron Transport Chain (ETC)

In this stage of cellular respiration, NADH AND FADH2 donate electrons and Oxygen is the final electron acceptor.

Electron Transport Chain (ETC)

This stage of cellular respiration produces 34 ATP and forms water H20.

Anaerobic respiration.

What do we call this type of cellular respiration when some organisms continue to respire when oxygen runs out?

Lactic acid

When humans do anaerobic respiration for a short time, what builds up in our muscles which is the result of anaerobic respiration?

less energy

Some fungi and plants respire anaerobically to release approximately how much energy but to stay alive?

Anaerobic respiration for humans in their muscles.

Glucose —→ Lactic acid + energy is the equation for?

Anaerobic respiration in yeast.

Glucose —→ Ethanol + Carbon dioxide + energy is the equation for?

Aerobic Respiration

This type of respiration releases a relatively large amount of energy.

Aerobic Respiration

Oxygen is present in this type of cellular respiration.

Aerobic Respiration

Glucose is completely oxidized in this type of cellular respiration

Anaerobic Respiration

This type of cellular respiration releases a small amount of energy very quickly.

Anaerobic Respiration

Oxygen is absent or not very abundant in this type of cellular respiration.

Anaerobic Respiration

Glucose is not completely oxidized and the products still contain energy in this type of cellular respiration.

Adenosine Triphosphate (ATP)

Cellular Respiration metabolic process by which organisms

convert glucose into the main energy currency for cells. What is this main currency known as?

Glucose

Cellular Respiration works by breaking

down molecules such as this to provide the

energy needed for cells to grow, repair, and

maintain themselves. Which of the following is the correct molecule?

Cellular Respiration

glucose + oxygen ——> carbon dioxide + water + energy released is the overall equation for?

Glucose

During Glycolysis: One molecule is

broken down into two molecules of

pyruvate (a three-carbon

molecule). Which of the following is the correct molecule. (a six-carbon sugar)

pyruvate (a three-carbon molecule)

During Glycolysis: One molecule of

glucose (a six-carbon sugar) is

broken down into what two molecules of?

Acetyl-CoA

What molecule is broken down in th₂e Krebs Cycle?

NADH and FADH2

During Electron Transport Chain (ETC) which molecules donate electrons while Oxygen is the final electron acceptor?

Oxygen

During Electron Transport Chain (ETC) NADH and FADH2 donate electrons which molecule is the final electron acceptor?

Anaerobic Respiration

Humans can do this for a

short time, resulting in lactic acid

building up in our muscles.

anaerobically

Some fungi

and plants respire _____ to

release less energy but stay alive.

anaerobic respiration

Some plants regularly carry out

___________. This is due to

their environment being deficient of

oxygen, for example, plants living in

marshland and boggy areas.