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7th Grade > Science L6: Photosynthesis & Cellular Respiration > Flashcards

Science L6: Photosynthesis & Cellular Respiration Flashcards

1
Q

T/F All living things must eat other living things for food.

A

False

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2
Q

T/F Plants can make their own food.

A

True

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3
Q

T/F Plants don’t need oxygen, only carbon dioxide.

A

False

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4
Q

T/F Animals eat plants or other animals that eat plants

A

True

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5
Q

T/F Many living things need oxygen to release energy from food.

A

True

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6
Q

Chloro

A

green

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7
Q

phyll

A

leaf

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8
Q

what does the word chlorophyll break down into?

A

green leaf

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9
Q

How do cells get energy?

A

Some cells get energy from eating other living things, others get it from making their own food.

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10
Q

Why do living things need energy at all times?

A
  • move materials into and out of the cell
  • make different chemicals
  • get rid of wastes
  • build body parts, replace cells or reproduce
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11
Q

Producer

A

organisms that can make their own food (most use energy from the sun)

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12
Q

Consumer

A

organisms that must eat, or consume, other living things to get food.

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13
Q

What do both producers and consumers have in common

A

Both use chemical energy.

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14
Q

how do nearly all life on Earth get energy from the sun.

A

Animals get energy from eating plants indirectly, plants get energy directly from the sun

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15
Q

photosynthesis

A

when plants use energy from sunlight, carbon dioxide and water to make sugars (also produces oxygen). turns light energy into chemical energy

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16
Q

Where does photosynthesis take place in plants?

A

Leaf

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17
Q

Chlorophyll

A

green pigment located in chloroplasts, captures light energy from the sun and converted into chemical energy in sugars

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18
Q

Where does photosynthesis take place?

A

organelles called chloroplasts

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19
Q

Where are chloroplasts found?

A

in cells of plants and other organisms that undergo photosynthesis. Not found in animal or fungal cells

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20
Q

equation for photosynthesis

A

6CO2 + H20 + light energy = C6H12O6 + 6 O2

carbon dioxide + water + light energy = sugar and oxygen

21
Q

glucose

A

sugar that stores chemical energy (food that plants make) plant cells break it down for food

22
Q

where is excess glucose stored?

A

stored in starch in the roots & stems of plants

23
Q

the process of breaking down food to produce ATP

A

cellular respiration

24
Q

ATP

A

adenosine triphosphate-powers many of the chemical reactions that enable cells to survive. the molecule that energy is stored in when sugar is broken down

25
Q

Are mitochondria found in animal or plant cells?

A

Both

26
Q

Where does cellular respiration take place?

A

cytoplasm and cell membranes of prokaryotic cells & in organelles called mitochondria and cytoplastm of eukaryotic cells

27
Q

What are the starting materials of cellular respiration

A

glucose and oxygen

28
Q

Describe cellular respiration in eukaryotes

A

first stage in the cytoplasm where glucose is broken down into two 2 carbon molecules
the second step occurs in them mitochondria (requires oxygen)
As the 3-carbon molecules are broken down, energy is captured and stored in ATP

29
Q

what are the products of cellular respiration

A

ATP (chemical energy), carbon dioxide, and water

30
Q

what happens to carbon dioxide produced during cellular respiration?

A

it is released by the cell, in many animals it is released in the lungs

31
Q

what happens to the energy produced during cellular respiration

A

it is released as heat
however much of the energy is transferred to ATP
ATP can be broken down, the energy released is used for cellular activities.

32
Q

Equation for cellular respiration

A

C6H12O2— 6CO2+ 6H2O + chemical energy (ATP)

33
Q

How are respiration & cellular respiration connected?

A

Photosynthesis makes oxygen, organisms use oxygen during cellular respiration. they then produce CO2 and release it. Plants use the CO2 to make sugar.

they depend on each other

34
Q

When there isn’t enough oxygen, living things can get energy (ATP) by what process?

A

anaerobic respiration (doesn’t make as much as cellular respiration)

35
Q

Fermentation

A

a type of anaerobic respiration (eg. yeast uses to make bread rise)

36
Q

T/F A producer eats other organisms?

A

False

37
Q

T/F Organisms get energy from food

A

True

38
Q

T/F Carbon dioxide is required for cellular respiration

A

True?

39
Q

T/F Cellular respiration takes place in the chloroplast.

A

False

40
Q

T/F Photosynthesis is the process by which plants make their own food

A

True

41
Q

T/F Chlorophyll captures light energy during photosynthesis

A

True

42
Q

T/F The products of photosynthesis are the starting materials of cellular respiration

A

True

43
Q

_______________ takes place in organelles called chloroplasts

A

photosynthesis

44
Q

Light energy is captured by green pigments called _________

A

chlorophyll

45
Q

cells use oxygen to release energy during _____________

A

cellular respiration

46
Q

what are the starting material and products of photosynthesis?

A

water, CO2 and sunlight are the starting materials

products- oxygen and sugar (starting products for cell resp.)

47
Q

How do plants and animals get their energy in different ways?

A

plants get energy from making their own food, animals from consuming other living things

48
Q

Plants don’t move so why do they need energy?

A

they need energy to grow and to make their own food (from energy from the sun)

7th Grade (14 decks)

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