basic questions- digestive system etc.

Question 1

what are the cells of organisation?

Answer 1

• cell systems
• tissue
• cells
• organs

Question 2

what is the function of the mouth?

Answer 2

food enters, chewed up by teeth

Question 3

what is the function of the oesophagus?

Answer 3

food goes down to the stomach

Question 4

what is the function of the stomach?

Answer 4

proteins start to be digested by enzymes

Question 5

what is the function of the pancreas?

Answer 5

releases enzymes

Question 6

what is the function of the gallbladder?

Answer 6

makes bile (speeds up digestion)

Question 7

what is the function of the small intestine?

Answer 7

fluid passes small intestine, nutrients absorbed across wall of small intestine

Question 8

what is the function of the large intestine?

Answer 8

digested fluid blood mixture goes to large intestine

Question 9

what are the 3 main nutrients food contains?

Answer 9

• lipis
• carbohydrates
• protein

Question 10

what is the function of a carbohydrate?

Answer 10

for energy

Question 11

what is the function of lipid?

Answer 11

source of energy, insulate the body

Question 12

what is the function of a protein?

Answer 12

needed for growth & repair of cells

Question 13

what is the function of water?

Answer 13

keeps hydrated, chemical reactions, diffusion

Question 14

what is the function of vitamin C?

Answer 14

heals wounds, maintains healthy body

Question 15

what is the function of vitamin A?

Answer 15

good skin, immunity against infections

Question 16

what is the function of vitamin D?

Answer 16

maintains healthy bones & teeth

Question 17

what is the function of calcium?

Answer 17

maintain healthy teeth & bones, important for blood clotting

Question 18

what is the function of iron?

Answer 18

needed to produce haenoglobin

Question 19

what’s the formula for glucose?

Answer 19

C6 H12 O6

Question 20

what are the other types of carbohydrates?

Answer 20

• glycogen
• starch
• cellulose

Question 21

what colour is shown when starch is not present?

Answer 21

orange

Question 22

what colour is shown when starch is present?

Answer 22

blue/black

Question 23

what colour is shown when there are no proteins present?

Answer 23

blue

Question 24

what colour is shown when protein is present?

Answer 24

purple

Question 25

what are the main elements that proteins are made of?

Answer 25

carbon, hydrogen, oxygen and nitrogen

Question 26

what are proteins?

Answer 26

long chains of amino acids

Question 27

what are lipids made up of?

Answer 27

3 molecules of fatty acids and 1 molecule of glycerol

Question 28

what are lipid made of?

Answer 28

carbon, hydrogen and oxygen

Question 29

what is the word equation for respiration?

Answer 29

glucose+oxygen —> carbon dioxide

+water

Question 30

what blood vessels have oxygenated blood?

Answer 30

atora, pulmonary vein & left atrium

Question 31

what blood vessels have deoxygenated blood?

Answer 31

vena cava, pulmonary artery, right atrium, right ventricle

Question 32

what is the function of the arteries?

Answer 32

take blood away from the heart

Question 33

what is the function of the veins?

Answer 33

take blood to the heart

Question 34

what is the function of the capillaries?

Answer 34

for exchange, delivers & takes away substances

Question 35

what is the function of plasma?

Answer 35

transports cells & substances around the body

Question 36

what is the function of red blood cells?

Answer 36

cells that transport oxygen from lungs to all cells in body

Question 37

what is the function of white blood cells?

Answer 37

form antibodies against microorganisms

Question 38

what is the function of platelets?

Answer 38

help the blood to clot

Question 39

what is the word equation for anaerobic respiration?

Answer 39

glucose —> lactic acid (+energy)

Question 40

what is the word equation for aerobic respiration?

Answer 40

glucose + energy—> carbon dioxide + water (+ energy)