RESPIRATION And Gad Exchange Of Human

Question 1

COMPare between aerobic respiration and anaerobic respiration

Answer 1

aerobic releases much energy
uses oxygen gas
produces water but no ethanol or lactic acid
anaerobic releases very little energ,does not use oxygen gas,ethanol or lactic acid are produced but no water

Question 2

word equation of anaerobic respiration in animals

Answer 2

glucose=lactic acid+2atp

Question 3

word equation of anaerobic respiration of plants and yeast

Answer 3

glucose=alchol+carbon dioxide+2 atp

Question 4

what is anaerobic respiration

Answer 4

the release of energy from food in living cells in absence of oxygen

Question 5

what is aerobic respiration

Answer 5

the release of energy from food in living cells in the precence of oxygen

Question 6

what is respiration

Answer 6

release of energy from food in living cells

Question 7

equation of aerobic respiration

Answer 7

c6h12o6+6o2=6co2+6h2o
=atp

Question 8

Trachea

Answer 8

Windpipe connect mouth to lungs

Question 9

Internal intercostal muscle

Answer 9

Muscles between ribs to control it during exhalation and inhalation

Question 10

Alvoli

Answer 10

Tiny air air where gas exchange takes place

Question 11

Brochi

Answer 11

Thick tube divide into q bronchi one bronchi for each lung

Question 12

Ribs

Answer 12

Bone structure protect internal organs such as lungs

Question 13

Muscular part of diaphragm

Answer 13

Sheet of muscle at the bottom of the throax that helps with inhalation and exhalation

Question 14

Mechanism of breath in

Answer 14

Diaphragm contract and flatten
External intercostal muscle contract
Ribcage pulled up
Volume inside throax increase
Pressure decrease
Air rushes into lungs
Internal intercostal muscle relax

Question 15

Mechanism of breathing out

Answer 15

Diaphragm relax and goes back to it’s normal dome shape
External intercostal muscle relax
Ribcage pull down
Volume inside throax decrease
Pressure increase
Air moves out of lungs
Internal intercostal muscle contract

Question 16

How air ways kept clean

Answer 16

1.respiratory tract lined by collated epithelium with goblet cell
2.goblet cell secrete mucus that is stick and thick to trap bacteria and dust
3.cillia waves to push mucus out

Question 17

Adaptation of alveoli for gasexchange by diffusion

Answer 17

1.large surface area to increase Rate of diffusion
2.thin wall fir short diffusion distance to increase Rate of diffusion
3.large capillary network that continuesilly brings in oxygen and carry away carbondioxide to keep a large concentration gradient
4.ventillated to continuesilly bring in oxygen and carry away carbondioxide to keep large concentration gradient
5.moist which helps to dissolve gases

Question 18

Causes of smoking for lungs

Answer 18

1.cause lung cancer
2.damahe cillia and increase mucus secretion which not swept away,bacteria in mucus cause infection (chronic bronchitis)
3.damage wall of alveoli reduce oxygen levels in blood cause lung emphysma

Question 19

Cause of smoking for circulatory system

Answer 19

1.nicotene Rise blood pressure so fat deposits in the artery wall increase so more risk of heart attack
2.carbon monoxide bind to haemoglobin form carboxyhaemoglbin that will lower oxygen concentration in blood

Question 20

Breath rate after excersise

Answer 20

1.during exercise muscle run short of oxygen
2.muscles respire anaerobiclly release lactic acid
3.after excersise breath rate remains high tk take in oxygen to oxidise
4.lactic acid in liver to pay for oxygen dept

Question 21

Breathing rate during exercise

Answer 21

1.Both breath rate and depth increase
2.breathe rate increase to take in more oxygen for more aerobic respiration in muscles cells to release more energy and get rid of excess carbondioxide

Question 22

Why doctors concered about promoting use of e-cigratte to young people

Answer 22

Non smokers may start use e-cigratte
As it can be addicted