Quiz
AQA GCSE Biology Unit 2.4
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Questions in this quiz (20)
1Which of these is the correct, general, word equation for aerobic respiration?
- Awater + carbon dioxide --> glucose + oxygen
- Bglucose + carbon dioxide --> water + oxygen
- Cglucose + oxygen --> carbon dioxide + water
2Which of these is the correct, general, balanced symbol equation for aerobic respiration?
- A6H2O + 6CO2 --> C6H12O6 + 6O2
- BC6H12O6 + 6CO2 --> 6H2O + 6O2
- CC6H12O6 + 6O2 --> 6CO2 + 6H2O
3What is the "unit" of energy in the cell, released by respiration?
- AAdenosine monophosphate, AMP
- BAdenosine diphosphate, ADP
- CAdenosine triphosphate, ATP
4True or false? Mitochondria have a folded inner surface to maximise their surface area for enzymes to carry out aerobic respiration.
- ATrue
- BFalse
5True or false? Active cells, such as muscle cells, need few mitochondria as these release more energy from respiration than the mitochondria in inactive cells.
- ATrue
- BFalse
6Which of these would not be an ethical way of showing that peas respire?
- AUsing a thermometer to show a rise in temperature which indicates that energy is being released from the peas
- BComparing sets of peas with varying concentrations of oxygen to see how long they live
- CPiping off the gas produced by the respiring peas and bubbling it through limewater to test for carbon dioxide
7Which of these activities are important uses of the energy from respiration?
- ADiffusion of glucose molecules across the partially permeable membrane of the cell
- BSynthesis reactions, such as the construction of amino acids from nitrate ions in plants
- CContraction of muscles for movement
- DEnabling chloroplasts to carry out photosynthesis
- EMaintenance of core body temperature in mammals and birds
8True or false? Muscles are made up of bundles of fibres.
- ATrue
- BFalse
9What name is given to pairs of muscles which contract in opposite directions to produce movement?
- AAntagonistic
- BProtagonistic
- CRealistic
10What do animals store excess glucose molecules as?
- AStarch
- BCellulose
- CProtein
- DGlycogen
11True or false? Carbon dioxide must be removed from the blood because it lowers blood pH.
- ATrue
- BFalse
12Which of these effects occur to the cardiovascular system when you exercise?
- AHeart rate increases
- BHeart rate decreases
- CBlood vessels constrict
- DBlood vessels dilate
13Which of these effects occur to the respiratory system when you exercise?
- ABreathing rate decreases
- BBreathing rate increases
- CDepth of breaths increases
- DDepth of breaths decreases
14Why do humans sometimes undergo anaerobic respiration?
- AThe air is too polluted so there is too little oxygen in the air
- BThe demand for oxygen in respiring cells exceeds the capacity of the blood vessels for carrying oxygen to them
- CThe nasal cavities become blocked by mucus so too little oxygen can enter the lungs
15Which of these is the correct, general, word equation for anaerobic respiration in humans?
- Aglucose --> lactic acid
- Bglucose --> carbon dioxide + water
- Clactic acid --> glucose
16Which of these is the correct, general, word equation for anaerobic respiration in yeasts?
- Aglucose --> ethanol
- Bglucose --> ethanol + carbon dioxide
- Cethanol --> glucose
17True or false? Lactic acid stimulates the muscles to continue exercising.
- ATrue
- BFalse
18True or false? Anaerobic respiration is inefficient as glucose is not completely broken down.
- ATrue
- BFalse
19Why do you continue to puff and pant after you have stopped using your muscles for a long period of time?
- AThe brain is fooled into thinking that you are still using your muscles
- BBreathing out helps to cool down the body's core temperature
- COxygen is needed to completely break down the lactic acid in your muscles
20What is the oxygen debt?
- AThe amount of money owed by scuba divers for oxygen tanks
- BThe amount of oxygen needed to break down lactic acid in your muscles
- CThe amount of oxygen needed to ensure that cardiac muscle has enough energy to continue beating
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- Description
- Twenty questions for the fourth section of Unit 2 in AQA GCSE Biology: Energy from respiration.
- Author
- Matthew T
- Language
- English
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