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Biology > Bioenergetics > Flashcards

Bioenergetics Flashcards

1
Q

What do plants use as a source of energy?

A

sunlight

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2
Q

What is the reaction that plants use to catch this light energy?

A

Photosynthesis

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3
Q

What is photosynthesis?

A

The process in which light is converted into glucose as food for the plant.

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4
Q

What type of reaction is photosynthesis?

A

An endothermic reaction.

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5
Q

Why is photosynthesis an endothermic reaction?

A

Because it takes in energy.

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6
Q

Where does Photosynthesis take place?

A

In the leaves.

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7
Q

What is the green pigment in plants?

A

Chlorophyll

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8
Q

What does chlorophyll do?

A

It absorbs light energy.

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9
Q

What is the word equation for photosynthesis?

A

Carbon dioxide+water –> glucose+oxygen

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10
Q

What is the chemical formula for photosynthesis?

A

C02+H20–>C6H12O6+02

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11
Q

What is the limiting factor?

A

A factor that stops the reaction from going faster

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12
Q

What are the factors that may be limiting during photosynthesis?

A

Light intensity
Carbon dioxide concentration
Chlorophyll concentration
Temperature

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13
Q

What happens when we increase the amount of light intensity?

A

The rate of photosynthesis increases.

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14
Q

How do we know that something is the limiting factor?

A

If when we increase the factor it quickens the reaction showing that it wasn’t as quick as it could’ve been.

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15
Q

How do we know that something is not a limiting factor?

A

If when we increase the reaction pace stays the same.

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16
Q

What happens when we increase the amount of Co2?

A

The rate of photosynthesis increases.

17
Q

What happens when a plant doesn’t have enough chlorophyll?

A

The rate of photosynthesis goes down as the plant is trapping less energy.

18
Q

What happens when we increase temperature?

A

The rate of photosynthesis increases.

19
Q

What happens when we increase the temperature too much?

A

The enzymes denatures.

20
Q

What is the optimum temp for photosynthesis?

A

45 degrees.

21
Q

What does optimum mean?

A

Where something works best at.

22
Q

Give three ways leaves are adapted to carry out photosynthesis?

A

Broad- Large surface area
Thin-short diffusion distance
Contains chlorophyll- absorbs sunlight

23
Q

Which way are reactants and products?

A

reactants–> products

Biology (6 decks)

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