Where in the cell does respiration mainly happen

The mitochondria

What is glycogen?

Glycogen is the storage form of glucose in your muscles and liver.

Why do you think the body stores glucose as glycogen instead of just keeping lots of glucose floating around in the blood?

So that the glucose is safe to store for later purposes and it doesn't float around because that would make the concentration of glucose too high

Why does anaerobic respiration cause pain, but aerobic respiration doesn’t?

Because anaerobic respiration builds up lactic acid

What is oxygen debt

After you stop exercising, your body needs extra oxygen to: break down the lactic acid remove it from the muscles return your body to normal This extra oxygen you need is called oxygen debt.

What is the word equation for aerobic respiration?

glucose + oxygen → carbon dioxide + water + energy

Define respiration

Respiration is a chemical process that happens in the mitochondria of cells. It releases energy from glucose so that the body can carry out essential functions such as movement, growth, and keeping warm.

What is the word equation for anaerobic respiration in animals?

glucose → lactic acid + energy

What is the word equation for anaerobic respiration in yeast?

glucose → ethanol + carbon dioxide + energy

Name some applications of anaerobic respiration

fermentation, brewing, biofuel production

what do you think the main purpose of respiration is for living organisms?

To make energy

Why does your body need energy to build complex molecules?

Because building big molecules (like proteins) takes energy, and respiration supplies that energy.

Which type of respiration releases more energy: aerobic or anaerobic?

aerobic

Which type of respiration would a 100‑metre sprinter mainly use — aerobic or anaerobic?

anaerobic

What builds up in your muscles during anaerobic respiration?

lactic acid

Why does your body need extra oxygen after intense exercise?

it needs to break up the lactic acid

Name one organism (other than humans) that can do anaerobic respiration.

yeast

What gas produced by yeast makes bread rise?

carbon dioxide

What do plants use sunlight for?

To make their own food

What gas do plants produce during photosynthesis?

oxygen

What is the job of chlorophyll?

to absorb light energy

What tiny structures on the leaf allow gases to enter and leave?

stomata

Why do root hair cells have a large surface area?

to absorb more water

Which type of cell controls the opening and closing of stomata?

guard cells

If a plant is in a dark room, which factor is limiting photosynthesis?

the amount of light

What part of the leaf contains lots of chloroplasts and is the main site of photosynthesis?

palisade cells