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AQA GCSE Biology (combined) > Topic B4 - Photosynthesis and Respiration > Flashcards

Topic B4 - Photosynthesis and Respiration Flashcards

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1
Q

Balanced symbol equation for photosynthesis

A

6CO2 + 6H2O -> C6H12O6 + 6O2

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2
Q

Photosynthesis - exo or endomeric

A

Endothermic

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3
Q

Factors affecting rate of photosynthesis

A

Temp
Light intensity
Carbon dioxide concentration
Amount of chlorophyll

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4
Q

What type of building are limiting factory ECONOMICALLY important

A

Greenhouses

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5
Q

3 ways plants use GLUCOSE from photosynthesis

A

Respiration
Storage as starch
Produce fat/oil for storage
Produce cellulose for the cell wall
Produce amino acids for protein synthesis

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6
Q

What do plants need to make proteins?

A

Glucose
Nitrate ions absorbed from soil

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7
Q

Respiration - endo or exothermic

A

Exothermic

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8
Q

What does aerobic respiration use?

A

Oxygen

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9
Q

Products of anaerobic respiration in animals

A

Lactic acid

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10
Q

What’s produced in aerobic respiration

A

Carbon dioxide and water

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11
Q

What do organisms need energy for?

A

Movement
Keeping warm
Chemical reactions to build larger molecules

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12
Q

Balanced symbol equation for aerobic respiration

A

C6H12O6 + 6O2 ~> 6CO2 + 6H2O

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13
Q

What type of respiration releases the least amount of energy

A

Anaerobic

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14
Q

Word equation for anaerobic respiration in animals

A

Glucose ~> lactic acid

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15
Q

Word equation for anaerobic respiration in plants and yeast

A

Glucose ~> carbon dioxide + ethanol

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16
Q

Anaerobic respiration of yeast cells?

A

Fermentation

17
Q

2 uses of anaerobic respiration

A

Manufacture of bread
Alcoholic drinks

18
Q

What 3 changes occur to the heart and lungs when exercising?

A

HR increases
BR increases
Breath volume increases

19
Q

What does the incomplete oxidation of glucose lead to?

A

Build of lactic acid
Oxygen debt

20
Q

Oxygen debt

A

Amount of extra oxygen body needs after exercise to react with the accumulated lactic acid and remove it from the cells

21
Q

Where is lactic acid converted back into glucose?

A

Liver

22
Q

Sum of all reaction in a cell or the body called?

A

Metabolism

AQA GCSE Biology (combined) (7 decks)

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