Respiration

Question 1

What is respiration

Answer 1

Respiration is a chemical reaction that occurs in all living cells

Question 2

What is the name of the structure inside of cells responsible for respiration

Answer 2

Mitochondria

Question 3

Respiration is an exothermic reaction

Question 4

What is the word equation for respiration

Answer 4

Oxygen + glucose > carbon dioxide + water + energy

Question 5

What is the chemical equation for respiration

Answer 5

602 +c6H12o6 > 6co2 + 6h20 + energy

Question 6

Aerobic respiration happens with a good supply of oxygen

Question 7

Anaerobic respiration happens with little oxygen or none at all

Question 8

What is the anaerobic respiration equation in muscle

Answer 8

Glucose>lactic acid + energy

Question 9

What is anaerobic respiration equation of yeast

Answer 9

Glucose> ethanol + carbon dioxide + energy

Question 10

What is the purpose of a oil layer

Answer 10

Prevents oxygen from air diffusing into yeast solution

Question 11

What is the colour change in limewater

Answer 11

Colourless to milky white

Question 12

Why is the glucose solution boiled before yeast is added

Answer 12

To kill any microbes and remove any dissolved oxygen

Question 13

Why is the solution cooled before yeast is added

Answer 13

So yeast cells aren’t killed by high temp

Question 14

Learn respiratory system diagram

Question 15

What happens when you breathe in

Answer 15

Diaphragm contracts and flattens, intercostal muscles contract and rob cage moves up and out. Volume increases and pressure decreases and air is drawn into lungs

Question 16

What happens when you breathe out

Answer 16

Diaphragm relaxes and domes up. Intercostal muscles relax and rib cage moves down and in. Volume decreases and pressure increases. Air is drawn out of lungs

Question 17

What is the function of bronchioles

Answer 17

Deliver air to all parts of the lung

Question 18

Function alveoli

Answer 18

Site of gas exchange (1 cell thick)

Question 19

Function of ribs

Answer 19

Protects lungs

Question 20

Function of pleural membranes

Answer 20

Lubricates the movement of the lungs reducing friction

Question 21

Function trachea

Answer 21

Carries air to lungs

Question 22

What is the name of the gas exchange surface in a plant

Answer 22

Spongy mesophyll layer

Question 23

How is alveoli adapted

Answer 23

Large surface area, reduces distance of diffusion 1 cell thick, inner surface of alveoli is moist allowing diffusing gases to dissolve increasing rate of diffusion, walls are highly permeable and moist meaning gases can move through easy.

Question 24

Where is gas exchange in the plant

Answer 24

Stomata which is found on leaves