4 Bioenergetics

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Total cards: 24•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

Is photosynthesis endothermic or exothermic?

Back (Answer)

Endothermic

Front (Question)

State the equation of photosynthesis.

Back (Answer)

6CO2 + 6H2O –> C6H12O6 + 6O2

Front (Question)

Where does photosynthesis occur in the cell?

Back (Answer)

Chloroplast

Front (Question)

What is photosynthesis?

Back (Answer)

Building glucose from carbon dioxide and water using light

Front (Question)

Name the pigment in chloroplasts that absorbs light.

Back (Answer)

Chlorophyll

Front (Question)

State an adaptation of the leaf for efficient photosynthesis.

Back (Answer)

Broad leaves/Thin/Have chlorophyll/Air spaces/Guard cells to regulate stomata opening

Front (Question)

How does higher light intensity affect the rate of photosynthesis?

Back (Answer)

Increase

Front (Question)

Apart from light and carbon dioxide concentration, name one other limiting factor of photosynthetic rate.

Back (Answer)

Temperature/Chlorophyll levels

Front (Question)

Why would photosynthetic rate decrease at higher temperatures?

Back (Answer)

Enzymes become denatured

#10

Front (Question)

Name one use of glucose in plants.

Back (Answer)

Respiration/Make and strenghten cellulose cell wall/Make starch for storage/Make lipids as energy store

#11

Front (Question)

Why do plants need nitrates for good growth?

Back (Answer)

Make proteins

#12

Front (Question)

State one factor to maintain in a greenhouse for optimal plant growth.

Back (Answer)

High CO2 levels/Constant light/Appropriate temperatures/Regulate watering

#13

Front (Question)

Define ‘aerobic respiration’.

Back (Answer)

Exothermic reaction that breaks down glucose to release energy using oxygen

#14

Front (Question)

State the equation of aerobic respiration.

Back (Answer)

Glucose + Oxygen –> Carbon dioxide + Water

#15

Front (Question)

Is respiration endothermic or exothermic?

Back (Answer)

Exothermic

#16

Front (Question)

Where does aerobic respiration occur in the cell?

Back (Answer)

Mitochondria

#17

Front (Question)

Give one importance of respiration.

Back (Answer)

Metabolic reactions (eg. Build)/Muscle contraction/Mainting body temp/Active transport

#18

Front (Question)

State one response of the body to exercise.

Back (Answer)

Increase heart rate/breathing rate/Glycogen coverted to glucose/Increase blood flow to muscles

#19

Front (Question)

What happens to the glycogen stored in muscles when you exercise?

Back (Answer)

Converted into glucose for respiration

#20

Front (Question)

What is anaerobic respiration?

Back (Answer)

Breakdown of glucose to release small amount of energy without the use of oxygen

#21

Front (Question)

Name the toxic substance produced by anaerobic respiration.

Back (Answer)

Lactic acid

#22

Front (Question)

State an effect on your body after anaerobic respiration.

Back (Answer)

Muscle fatigue

#23

Front (Question)

Define ‘oxygen debt’.

Back (Answer)

Amount of oxygen needed to break down lactic acid

#24

Front (Question)

What do plants make in anaerobic respiration?

Back (Answer)

Ethanol and carbon dioxide