Photosynthesis

Question 1

What do plants need energy for?

Answer 1

Photosynthesis, active transport, DNA replication, cell division and protein synthesis

Question 2

What do animals need energy for?

Answer 2

Muscle contraction, body temp maintenance, active transport, DNA replication, cell division and protein synthesis

Question 3

How do plants make glucose?

Answer 3

Photosynthesis

Question 4

What is the word equation for photosynthesis?

Answer 4

Carbon dioxide + water -> sugar + oxygen

Question 5

What is the equation for photosynthesis?

Answer 5

6CO2 + 6H2O + Energy -> C6H12O6 +6O2

Question 6

How do animals obtain glucose?

Answer 6

Eating plants or other animals

Question 7

What is the process where living cells release energy from glucose?

Answer 7

Respiration

Question 8

What is aerobic respiration?

Answer 8

Respiration using oxygen

Question 9

What is anaerobic respiration?

Answer 9

Respiration without oxygen

Question 10

What is the equation for aerobic respiration?

Answer 10

C6H12O6 +6O2 -> 6CO2 + 6H2O + Energy

Question 11

What is the metabolic pathway?

Answer 11

A series of small reactions controlled by enzymes

Question 12

What is phosphorylation

Answer 12

Adding phosphate to a molecule

Question 13

What is photophosphorylation?

Answer 13

Adding phosphate to a molecule using light

Question 14

What is photolysis?

Answer 14

The splitting of a molecule using light

Question 15

What is hydrolysis?

Answer 15

The splitting of a molecule using water

Question 16

What is decarboxylation?

Answer 16

The removal of carbon dioxide from a molecule

Question 17

What is dehydrogenation?

Answer 17

The removal of hydrogen from a molecule

Question 18

What are redox reactions?

Answer 18

Reactions that involve oxidation or reduction

Question 19

What happens to something that has been reduced?

Answer 19

It has gained electrons and may have gained hydrogen or lost oxygen

Question 20

What happens to something if it has been oxidised?

Answer 20

It has lost electrons and may have lost hydrogen or gained oxygen

Question 21

What is a coenzyme?

Answer 21

A molecule that aids the function of an enzyme

Question 22

What is the coenzyme used in photosynthesis?

Answer 22

NADP

Question 23

What does NAPD do in photosynthesis?

Answer 23

Transfers hydrogen from one molecule to another so it can reduce or oxidise a molecule

Question 24

Where does photosynthesis take place?

Answer 24

In the chloroplast of plant cells

Question 25

What are chloroplasts?

Answer 25

Small flattened organelles found in plant cells that are the location for photosynthesis in plants

Question 26

What is the chloroplast envelope?

Answer 26

The double membrane that chloroplasts have

Question 27

What are thylakoids?

Answer 27

Fluid filled sacs that are stacked up in the chloroplast into the structures called grana

Question 28

What are grana linked together by?

Answer 28

Lamellae

Question 29

What are photosynthetic pigments?

Answer 29

Coloured substances that absorb light energy needed for photosynthesis

Question 30

What are accessory pigments?

Answer 30

Pigments that can absorb light and pass it down to a primary pigment

Question 31

What do chloroplasts have in the stroma?

Answer 31

DNA

Question 32

What are the two photosystems?

Answer 32

PSI (680nm) and PSII (700nm)

Question 33

What are carbohydrates produced by photosynthesis stored as and where?

Answer 33

Stores as starch grains in the stroma

Question 34

What are the two stages of photosynthesis

Answer 34

The light dependant stage and the light independent stage