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GCSE 9-1 Biology revision > Bioenergetics > Flashcards

Bioenergetics Flashcards

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1
Q

What uses light for their source of energy

A

Plants

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2
Q

Photosynthesis takes in energy, is it an endothermic or exothermic reaction

A

Endothermic reaction

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3
Q

Where does photosynthesis take place in the plant

A

The leaves

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4
Q

What is chlorophyll

A

Leaves contain the green chemical chlorophyll

chlorophyll can absorb light energy

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5
Q

What is the photosynthesis word equation

A

Carbon dioxide + water ——–> glucose + oxygen

CO2+H2O ——–> C6H12O6+O2

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6
Q

When the light intensity is zero what is the rate of photosynthesis

A

0

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7
Q

What is one thing that plants need to carry out photosynthesis

A

Light

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8
Q

What happens to the light intensity when the rate of photosynthesis increases

A

It also increases

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9
Q

What makes a photosynthesis reaction get faster

A

More light energy

More carbon dioxide

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10
Q

What are the uses for glucose from photosynthesis

A
  • Release energy in respiration
  • to produce the insoluble storage molecule starch
  • to produce amino acid
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11
Q

Mitochondria

A

Respiration takes place

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12
Q

Is respiration and Endo or exothermic reaction

A

Exothermic reaction because it releases energy

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13
Q

Cellular respiration

A

Energy we need it supplied by the process cellular respiration

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14
Q

What is the aerobic respiration word equation

A

Glucose+oxygen——–>carbon dioxide+water(+energy)

C6H12O6+O2——–>CO2+H2O

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15
Q

What chemical reaction releases energy from glucose

A

Respiration

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16
Q

What is the energy used for respiration used for

A

By enzymes to synthesise new molecules in cells

17
Q

What is metabolism

A

The sum of all the chemical reactions in the cell or the body

GCSE 9-1 Biology revision (4 decks)

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