Bioenergetics

Question 1

Word equation for photosynthesis

Answer 1

Carbon dioxide + water >(light)> oxygen + glucose

Question 2

Symbol equation for photosynthesis

Answer 2

6CO2 + 6H2O > C6H12O6 + 6O2

Question 3

What type of reaction is photosynthesis

Answer 3

endothermic

Question 4

5 uses of glucose

Answer 4

Respiration, stored as startch , make fat and oils,make cellulose , make amino acids

Question 5

Limiting factors of photosynthesis

Answer 5

Temperature,light,carbon dioxide

Question 6

explain what happens to rate of photosynthesis when the temperature is too low

Answer 6

the rate of photosynthesis is limited by the number of collisions between enzymes and substrate.

Question 7

explain what happens to rate of photosynthesis when the temperature is too high

Answer 7

Rate of photosynthesis increases

Question 8

What must farmer consider when growing plants in a green house

Answer 8

temperature, humidity, and light

Question 9

What is metabolism

Answer 9

the chemical reactions in the body’s cells that change food into energy.

Question 10

What affects the metabolic rate

Answer 10

Age , gender , physical activity

Question 11

Why do organisms need energy ?

Answer 11

to grow and reproduce, maintain their structures, and respond to their environments.

Question 12

What type of reaction is respiration

Answer 12

Exothermic

Question 13

What type of reaction uses oxygen

Answer 13

Oxidation reactions

Question 14

what type of reaction uses the least amount of oxygen

Answer 14

Anaerobic respiration

Question 15

What is the word equation for aerobic respiration

Answer 15

glucose + oxygen → carbon dioxide + water + energy.

Question 16

What is the word equation for anaerobic respiration

Answer 16

Glucose → ethanol + carbon dioxide + energy

Question 17

Where does the glucose for respiration come from

Answer 17

dietary sources and glycogen

Question 18

How are glucose and oxygen delivered to the muscles

Answer 18

The circularity system

Question 19

What does the blood remove from muscle cells

Answer 19

carbon dioxide and other waste products

Question 20

Where in the cell does respiration occur

Answer 20

the cytoplasm and mitochondria

Question 21

What happens to the breathing rate during excerise

Answer 21

Increases

Question 22

Why does the breathing rate change during excrsize

Answer 22

your body uses more oxygen and produces more carbon dioxide.

Question 23

What happens to the heart during excerise

Answer 23

your heart typically beats faster so that more blood gets out to your body.

Question 24

Why does heart rate change during excerise

Answer 24

So that more blood gets out to your body

Question 25

What does the liver do to lactic acid

Answer 25

oxidised to carbon dioxide and water, or. converted to glucose, then glycogen - glycogen levels in the liver and muscles can then be restored.

Question 26

Why is it important to repay oxygen debt after excersize

Answer 26

lactic acid will be leftover.

Question 27

What can fermentation be used in for baking

Answer 27

Dairy, dough, fruits & grains

Question 28

What can fermentation be used for in baking

Answer 28

During baking the carbon dioxide expands and causes the bread to rise further.