aerobic and anaerobic respiration.

Question 1

what is respiration?

Answer 1

chemical process that releases the energy from within glucose.

Question 2

what is breathing?

Answer 2

physical process that takes in oxygen to the lungs and removes carbon dioxide from the body.

Question 3

what is the difference between respiration and breathing?

Answer 3

R) chemical.
B) physical.

Question 4

what is the word equation for aerobic respiration?

Answer 4

glucose + oxygen → carbon dioxide + water (+energy)

Question 5

what is the symbol equation for aerobic respiration?

Answer 5

C₂H₁₂O₆ +6O₂ → 6C0₂+6H₂0

Question 6

where does respiration take place in cells?

Answer 6

mitochondria of every cell in the body.

Question 7

what does respiration release and what sort of reaction is it?

Answer 7

releases energy from within glucose and is an exothermic reaction.

Question 8

what is respiration carefully controlled by?

Answer 8

enzymes.

Question 9

what is the anaerobic respiration word equation in animals?

Answer 9

glucose → Latic acid.

Question 10

what is the anaerobic respiration word equation in plants and yeast?

Answer 10

glucose → ethanol + carbon dioxide.

Question 11

in exercise what happens to the heart, breathing rate and breath volume and why?

Answer 11

increases to supply muscles with more oxygen and glucose for the increase in aerobic respiration.

Question 12

during periods of vigorous activity the muscles may not be supplied with enough oxygen. what type of respiration takes place and where?

Answer 12

anaerobic respiration in the muscle cells.

Question 13

what does using anaerobic respiration cause?

Answer 13

build up of latic acid and creates an oxygen debt.

Question 14

what does lactic acid cause?

Answer 14

causes muscles to hurt and stops them from contracting efficiently.

Question 15

what is yeast?

Answer 15

single-celled fungi.

Question 16

how is yeast produced?

Answer 16

asexually.
creates a bud- this new cell eventually breaks away from parent cell.

Question 17

what is the word equation for yeast fermentation?

Answer 17

glucose → ethanol + carbon dioxide + energy.

Question 18

what is the symbol equation for yeast fermentation?

Answer 18

C₆H₁₂O₆ →2C₂H₅OH+2CO₂+210KJ.

Question 19

an experiment was set up including a glass beaker, stopper, another boiling tube, and a glass tube that connected them both, one from the yeast in glucose solution and one going to the lime water: what is the purpose of having a layer of oil on top of the yeast?

Answer 19

stop oxygen getting to the solution.

Question 20

an experiment was set up including a glass beaker, stopper, another boiling tube, and a glass tube that connected them both, one from the yeast in glucose solution and one going to the lime water: what was in the solution and why?

Answer 20

sugar. respire.

Question 21

an experiment was set up including a glass beaker, stopper, another boiling tube, and a glass tube that connected them both, one from the yeast in glucose solution and one going to the lime water: what proves that carbon dioxide was produced?

Answer 21

bubbles are produced .
changes colour- cloudy.

Question 22

an experiment was set up including a glass beaker, stopper, another boiling tube, and a glass tube that connected them both, one from the yeast in glucose solution and one going to the lime water: why does anaerobic respiration stop eventually?

Answer 22

runs out of energy glucose.

Question 23

what does an aerobic respiration look like?

Answer 23

with oxygen.
glucose completely broken down.
more energy released.
Latic acid not produced.
muscles don’t fatigue.
normal breathing/ light exercise.

Question 24

what does anaerobic respiration look like?

Answer 24

without oxygen.
glucose incompletely broken down.
less energy released.
Latic acid produced.
muscles fatigue.
vigorous exercise.

Question 25

fill in the words: respiration takes place in the ……………………of every cell in the body. it …………the energy from within ……..and is an……………reaction. respiration is carefully controlled by many………..also known as …………….catalysts.

Answer 25

mitochondria.
releases.
glucose.
exothermic.
enzymes.
biological.