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8B Science > 8.1 Photosynthesis and the carbon cycle > Flashcards

8.1 Photosynthesis and the carbon cycle Flashcards

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Biology 101 flashcards
1
Q

What process do plants use to make their own food?

A

Photosynthesis

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2
Q

What are the reactants for photosynthesis?

A

Water and carbon dioxide

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3
Q

What are the products for photosynthesis?

A

Glucose and oxygen

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4
Q

What is the green pigment in plants that absorbs sunlight?

A

Chlorophyll

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5
Q

Which part of a plant cell does photosynthesis take place in?

A

Chloroplasts

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6
Q

Write the word equation for photosynthesis

A

Water + Carbon Dioxide → Glucose + Oxygen

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7
Q

Where in the plant are most chloroplasts found?

A

Leaves

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8
Q

What are the holes on the bottom of the leaf called that allow gases to diffuse into and out of the leaf?

A

Stomata

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9
Q

How does water get from the roots to the leaves?

A

Through veins called xylem

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10
Q

Why do plants need magnesium?

A

To make chlrophyll

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11
Q

Why do plants need nitrogen

A

To convert carbohydrates to proteins

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12
Q

How do plants get carbon?

A

Through absorbing carbon dioxide for photosynthesis

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13
Q

How do decomposers get carbon?

A

Feeding on dead plants and animals

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14
Q

How do animals get carbon?

A

Feeding on plants

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15
Q

How does carbon dioxide get back into the air from plants, animals and decomposers?

A

Respiration

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16
Q

What is the word equation for respiration?

A

Glucose + Oxygen → Carbon Dioxide + Water

17
Q

What are the three fossil fuels

A

Coal, oil and gas

18
Q

How have fossil fuels been formed?

A

Dead plants and animals, get buried (lack of oxygen), heat and pressure over a long time

19
Q

Name the two main greenhouse gases

A

Carbon dioxide and methane

20
Q

What has increased carbon dioxide levels in the atmosphere caused?

A

Global warming

21
Q

What is climate change

A

The change in the long term pattern of temperatures, wind and rainfall on Earth

22
Q

What are the three main impacts of climate change

A

More extreme weather, less predictable rainfall, raising sea levels

8B Science (2 decks)

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