Science L6: Photosynthesis & Cellular Respiration

Question 1

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

Answer 1

False

Question 2

T/F Plants can make their own food.

Answer 2

True

Question 3

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

Answer 3

False

Question 4

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

Answer 4

True

Question 5

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

Answer 5

True

Question 6

Chloro

Answer 6

green

Question 7

phyll

Answer 7

leaf

Question 8

what does the word chlorophyll break down into?

Answer 8

green leaf

Question 9

How do cells get energy?

Answer 9

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

Question 10

Why do living things need energy at all times?

Answer 10

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

Question 11

Producer

Answer 11

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

Question 12

Consumer

Answer 12

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

Question 13

What do both producers and consumers have in common

Answer 13

Both use chemical energy.

Question 14

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

Answer 14

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

Question 15

photosynthesis

Answer 15

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

Question 16

Where does photosynthesis take place in plants?

Answer 16

Leaf

Question 17

Chlorophyll

Answer 17

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

Question 18

Where does photosynthesis take place?

Answer 18

organelles called chloroplasts

Question 19

Where are chloroplasts found?

Answer 19

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

Question 20

equation for photosynthesis

Answer 20

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

carbon dioxide + water + light energy = sugar and oxygen

Question 21

glucose

Answer 21

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

Question 22

where is excess glucose stored?

Answer 22

stored in starch in the roots & stems of plants

Question 23

the process of breaking down food to produce ATP

Answer 23

cellular respiration

Question 24

ATP

Answer 24

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

Question 25

Are mitochondria found in animal or plant cells?

Answer 25

Both

Question 26

Where does cellular respiration take place?

Answer 26

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

Question 27

What are the starting materials of cellular respiration

Answer 27

glucose and oxygen

Question 28

Describe cellular respiration in eukaryotes

Answer 28

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

Question 29

what are the products of cellular respiration

Answer 29

ATP (chemical energy), carbon dioxide, and water

Question 30

what happens to carbon dioxide produced during cellular respiration?

Answer 30

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

Question 31

what happens to the energy produced during cellular respiration

Answer 31

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.

Question 32

Equation for cellular respiration

Answer 32

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

Question 33

How are respiration & cellular respiration connected?

Answer 33

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

Question 34

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

Answer 34

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

Question 35

Fermentation

Answer 35

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

Question 36

T/F A producer eats other organisms?

Answer 36

False

Question 37

T/F Organisms get energy from food

Answer 37

True

Question 38

T/F Carbon dioxide is required for cellular respiration

Answer 38

True?

Question 39

T/F Cellular respiration takes place in the chloroplast.

Answer 39

False

Question 40

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

Answer 40

True

Question 41

T/F Chlorophyll captures light energy during photosynthesis

Answer 41

True

Question 42

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

Answer 42

True

Question 43

_______________ takes place in organelles called chloroplasts

Answer 43

photosynthesis

Question 44

Light energy is captured by green pigments called _________

Answer 44

chlorophyll

Question 45

cells use oxygen to release energy during _____________

Answer 45

cellular respiration

Question 46

what are the starting material and products of photosynthesis?

Answer 46

water, CO2 and sunlight are the starting materials | products- oxygen and sugar (starting products for cell resp.)

Question 47

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

Answer 47

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

Question 48

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

Answer 48

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