breathing and resperation

Question 1

What is the word equation for aerobic respiration

Answer 1

Glucose + oxygen —> carbon dioxide + water + energy

Question 2

what is the balanced equation for respiration

Answer 2

C6H12O6 + 6O2 –> 6CO2 + 6H2O + ENERGY

Question 3

what is continually released from every cell during respiration in a series of chemical reactions

Answer 3

Energy

Question 4

what 5 things do the different cells in the body do with energy

Answer 4

growth and repair
movement
produce heat (endothermic)
respiration
active transportation

Question 5

What is the word equation for aerobic respiration in the muscle

Answer 5

glucose –> Latic acid + energy

Question 6

what type of reaction is respiration

Answer 6

endothermic

Question 7

What is produced by yeast in anaerobic respiration

Answer 7

ethanol

Question 8

What is the word equation for aerobic respiration in yeast

Answer 8

glucose –> ethanol + carbon dioxide + energy

Question 9

What is the 4 method for the experiment to show aerobic respiration in yeast

Answer 9

1. A solution of glucose is boiled
2. The glucose id cooled before adding the yeast cells
3. Once the apparatus id set up a layer of oil is added to the glucose containing yeast
4. As the yeast respires anaerobically it produces carbon dioxide, alcohol and energy in the form of heat

Question 10

Give 2 reasons why the glucose is boiled in step 1 of the aerobic respiration in yeast

Answer 10

remove oxygen
sterilise it to remove bacteria

Question 11

Why is it important to cool the glucose before adding the yeast in step 2 of the aerobic respiration in yeast

Answer 11

So we don’t kill the yeast

Question 12

why is a layer of oil added in step 3 of the aerobic respiration in yeast

Answer 12

This is to maintain the yeast in anaerobic conditions

Question 13

What changes will you observe in step 4 of the aerobic respiration in yeast

Answer 13

milky with the carbon dioxide the boiling tube will heat up

Question 14

what happens in aerobic respiration

Answer 14

oxygen is used
CO2 is released
water vapor released
energy is released

Question 15

what happens in aerobic respiration in mammalian muscle

Answer 15

lactic acid produced
energy released

Question 16

what happens in aerobic respiration in yeast

Answer 16

carbon dioxide is released
energy is released

Question 17

what is inside a human respiratory system

Answer 17

In humans the respiratory system is inside the Thorax a space surrounded by ribs of bone with **intercostal Muscle **between them and a muscular sheet, the Diaphragm below them.

Question 18

what happens to the air as it passes through the nasal cavity

Answer 18

filters the air
warms/moistens

Question 19

what are the 6 ways for adaption of respiratory surface

Answer 19

large surface area
thin
moist
permeable
good blood supply
different gradient

Question 20

how are the lungs adapted for large surface area

Answer 20

There are many alveoli in each lung and each alveolus has a large surface area so the overall effect is that humans have a gas exchange surface of many square metres

Question 21

how are the lungs adapted for thin walls with short diffusion distance

Answer 21

Allows rapid diffusion and exchange of gases “along Concentration gradient

Question 22

how are the lungs adapted for moist walls

Answer 22

Allow gases to disolve

Question 23

how are the lungs adapted for permeable surface

Answer 23

Moist/thin walls

allow gases to exchange

Question 24

how are the lungs adapted for a good blood supply

Answer 24

Alveoli are surrounded by capillaries to ensure that any oxygen diffusing through is carried around the body; and carbon dioxide is continually taken back to the lungs

i.g, it maintains a concentration gradient

Question 25

how are the lungs adapted for a good diffusion gradient

Answer 25

oxygen diffusions from high concentration in the gluesli to lawin the blood and co² diffuses from high in the blood to low in the alveoli

Question 26

what is breathing rate

Answer 26

it is the number of breaths per minute

Question 27

what is recovery rate

Answer 27

it is the time for your breathing rate to return to nromal

Question 28

what 3 things happens when you breath

Answer 28

your inter costal muscle contracts causing ribs to move up and out diaphragm contracts and moves down the volume of the chest cavity increases the pressure to decreases air enters the lungs because the lungs pressure falls below the atmospheric pressure

Question 29

what is the main adaption for respiratory surface in plants

Answer 29

-Large surface area-this is because there are so many spongy mesophyll cells surrounding the air spaces

Question 30

what are the 3 membranes and what does each do

Answer 30

thin = shorter diffusion distance moist = gases can dissolves permeable = gases can transfer through and maintains concentration gradient