B4.3

Question 1

what is energy released by respiration used for

Answer 1

movement
synthesising (making) larger molecules
active transport

Question 2

synthesis of large molecules

Answer 2

large ones (starch/glucose) are synthesised from smaller (glucose in plant cells)

Question 3

what does synthesis of large molecules involve

Answer 3

joining the glucose molecules (monomers) together to form a polymer (made of many units)

Question 4

amino acids are synthesised from what?

Answer 4

glucose and nitrates

Question 5

what are proteins made in?

Answer 5

plant animal and bacterial cells from strings of amino acids joined together

Question 6

aerobic respiration releases energy through what?

Answer 6

the breakdown of glucose molecules by combining them with oxygen inside living cells

Question 7

what respites aerobically?

Answer 7

majority of animal and plant cells

some micro organisms

Question 8

aerobic respiration word/symbol

Answer 8

opposite to photosynthesis

Question 9

where does anaerobic respiration take place?

Answer 9

conditions of low or no oxygen

Question 10

examples of where anaerobic respiration happens

Answer 10

humans during vigorous exercise
plant roots in waterlogged soil
bacteria in puncture wounds

Question 11

what respites anaerobically?

Answer 11

animal cells and some bacteria

Question 12

anaerobic respiration word equation

animals and some bacteria

Answer 12

glucose —> lactic acid (+ energy released)

Question 13

anaerobic word equation

plant cells and some micro organisms (yeast)

Answer 13

glucose. —> ethanol + carbon dioxide (+ energy released)

Question 14

what does aerobic do more than anaerobic

Answer 14

release more energy per glucose molecule

Question 15

animal cell

cell membrane

Answer 15

allows…

Question 16

nucleus

animal cell

Answer 16

contains DNA that carries genetic code for making proteins including enzymes needed in respiration

Question 17

cytoplasm

animal

Answer 17

where proteins including enzymes used in anaerobic are made

Question 18

mitochondria

animal

Answer 18

where aerobic respiration occurs

Question 19

bacteria- what don’t they have?

Answer 19

nucleus or mitochondria

Question 20

what is yeast

Answer 20

a type of fungus used to make bread and alcohol

Question 21

what does yeast have

Answer 21

mitochondria and nucleus

Question 22

yeast

making bread

Answer 22

yeast added to dough

dough is effectively a source of glucose needed for anaerobic

Question 23

yeast
brewing alcohol
what does it involve?

Answer 23

a fermentation process

Question 24

aerobic fermentation

Answer 24

yeast is exposed to air and grows rapidly on sugar provided

- some alcohol is produced but majority of energy is used to produce more yeast cells

Question 25

anerobic fermentation

Answer 25

absence of oxygen

yeast respites anaerobivally, produces alcohol and carbon dioxide instead of multiplying