B4

Question 1

What is the word equation for photosynthesis?

Answer 1

Carbon dioxide + water > glucose + oxygen

Question 2

What is the symbol equation for photosynthesis?

Answer 2

6CO(2)+ 6C(2)O > C(6)H(12)O(6) + 6O(2)

Question 3

What are the products of photosynthesis ?

Answer 3

Glucose and oxygen

Question 4

What are the reactants of photosynthesis?

Answer 4

Carbon dioxide and water

Question 5

What are the 4 uses of glucose in plants?

Answer 5

•Respiration
•Strength cell walls
•Protein synthesis
•Energy storage

Question 6

In plants, glucose is converted to what make cell walls strong?

Answer 6

Cellulose

Question 7

In plants, glucose is used with nitrate ions to make amino acids, which then are used for what?

Answer 7

Protein synthesis

Question 8

In plants, glucose is converted to lipids to do what?

Answer 8

Store energu

Question 9

What three (four) things affect the rate of photosynthesis?

Answer 9

•Light intensity
•CO2 concentration
•Tempteture
•(Chlorophyll amount)

Question 10

How to control limiting factors?

Answer 10

Greenhouse

Question 11

How does a greenhouse control limiting factors?

Answer 11

Maximises rate of photosynthesis

Question 12

What is the disadvantage of greenhouses for controlling limiting factors?

Answer 12

The ventilation ,lamps ,heaters and shades cost money

Question 13

Respiration is the process of what?

Answer 13

Transferring energy from glucose

Question 14

What does energy transfer from in respiration?

Answer 14

Glucose

Question 15

What type of reaction is respiration?

Answer 15

Exothermic

Question 16

The energy transferred from glucose in respiration is used for what 3 things?

Answer 16

•Contract muscles for movement
•Keep warm
•Build larger molecules from smaller ones

Question 17

Which type of respiration uses oxygen?

Answer 17

Aerobic

Question 18

Which type of respiration doesn’t use oxygen?

Answer 18

Anaerobic

Question 19

Which is the more efficient type of respiration?

Answer 19

Aerobic

Question 20

Which type of respiration is the photosynthesis equation backwards?

Answer 20

Aerobic

Question 21

What is the aerobic respiration equation?

Answer 21

Glucose+ oxygen > carbon dioxide+water

Question 22

Which respiration transfers much less energy?

Answer 22

Anaerobic

Question 23

Which respiration does glucose not fully oxidise?

Answer 23

Anaerobic

Question 24

Anaerobic respiration transfers much less energy because glucose isn’t what?

Answer 24

Fully oxidised

Question 25

In muscle cells for anaerobic respiration , what is the process?

Answer 25

Glucose > lactic acid

Question 26

In plant and yeast cells, for anaerobic respiration, what is the process?

Answer 26

Glucose > ethanol +Carbon dioxide

Question 27

What is metabolism?

Answer 27

The sum of all the reactions that happen in a single cell or the body

Question 28

Metabolic reactions use energy from what to make new molecules?

Answer 28

Respiration

Question 29

Glucose and nitrate ions being combined to make proteins which is made into proteins is an example of what?

Answer 29

A metabolic reatvion

Question 30

Lipids broken down into glycerol and fatty acids is an example of what?

Answer 30

A metabolic reaction

Question 31

Glucose molecules being joined together to make higher carbohydrates (starch) is an example of what?

Answer 31

A metabolic reaction

Question 32

Due to exercise on the body, what will be needed more?

Answer 32

Energy

Question 33

When the body exercises more, more energy is needed, meaning what is required more to get energy?

Answer 33

Aerobics respiration

Question 34

When the body requires more aerobic respiration to get more energy for exercise , what will be needed for that aerobic respiration process?

Answer 34

More oxygen

Question 35

In order to get more oxygen to your muscles for exercise ,what three things does the body increase?

Answer 35

•Heart rate •Breathing rate •breathing volume

Question 36

What is described as; the amount of extra oxygen needed to react with built up lactic acid (and remove it from cells)?

Answer 36

Oxygen debt

Question 37

During vigorous exercise, not enough oxygen can be supplied to the muscles, meaning what respiration must take place?

Answer 37

Anaerobic

Question 38

Due to anaerobic respiration taking place with vigorous exercise, what is built up in the muscles?

Answer 38

Lactic acid

Question 39

As lactic acid is built up in the muscles due to anaerobic respiration for vigorous exercise, what is created?

Answer 39

Oxygen debt

Question 40

How is oxygen debt repayed?

Answer 40

Heart rate and breathing rate stay high

Question 41

Heart rate and breathing rate stay high after vigorous exercise in order to repay what?

Answer 41

Oxygen debt