Photosynthesis and Plant Responses

Question 1

what is a stimulus

Answer 1

A stimulus is anything that causes a response in an organism

Question 2

how to plants respond to light

Answer 2

Shoots will always grow upwards towards light

Question 3

how do plants respond to gravity

Answer 3

roots will always grow downwards in response to gravity

Question 4

what is a tropism

Answer 4

A tropism is the growth of a plant in response to a stimulus

Question 5

what is geotropism

Answer 5

Geotropism is the plants response to gravity for example the roots always grow towards gravity

Question 6

what are the benefits of geotropism

Answer 6

It makes sure plant roots travel down to find water and minerals in soil
•Having deep roots means the plant is anchored in the soil

Question 7

what is phototropism

Answer 7

Phototropism is the plants response to light for example the shoot will always grow towards light

Question 8

what are the benefits of phototropism

Answer 8

It makes sure plants get enough light for photosynthesis, so that they can make food

Question 9

What do we call it that plant shoots grow towards light

Answer 9

positively phototropic

Question 10

What do we call it that roots grow away from light

Answer 10

negatively phototropic

Question 11

What do we call it that plant shoots grow against gravity

Answer 11

negatively geotropic

Question 12

What do we call it that roots grow with gravity

Answer 12

positively geotropic

Question 13

what does photo mean

Answer 13

light

Question 14

what does synthesis mean

Answer 14

to make

Question 15

what is photosynthesis

Answer 15

Photosynthesis is the process where green plants make food using light energy

Question 16

why are leaves and plants green

Answer 16

Because the contain Chlorophyll which is a green chemical needed for photosynthesis

Question 17

where is chlorophyll found?

Answer 17

Chlorophyll is found in Chloroplasts in plant cells

Question 18

where are chloroplasts found

Answer 18

in plant cells

Question 19

what part of the plant has the most chlorophyll?

Answer 19

The leaves and any green part of the plant have chlorophyll

Question 20

how do plants make their food?

Answer 20

Energy from sunlight,
with chlorophyll as a catalyst, is used to
combine CO2 and H2O to form glucose and
release O2

Question 21

how does response take place in plants

Answer 21

Plants respond to the stimuli of Light and Gravity

Question 22

what is a stimulus

Answer 22

A stimulus is anything that causes a response in an organism

Question 23

how to plants respond to light

Answer 23

Shoots will always grow upwards towards light

Question 24

how do plants respond to gravity

Answer 24

roots will always grow downwards in response to gravity

Question 25

what is a tropism

Answer 25

A tropism is the growth of a plant in response to a stimulus

Question 26

what is geotropism

Answer 26

Geotropism is the plants response to gravity for example the roots always grow towards gravity

Question 27

what are the benefits of geotropism

Answer 27

It makes sure plant roots travel down to find water and minerals in soil •Having deep roots means the plant is anchored in the soil

Question 28

what is phototropism

Answer 28

Phototropism is the plants response to light for example the shoot will always grow towards light

Question 29

what are the benefits of phototropism

Answer 29

It makes sure plants get enough light for photosynthesis, so that they can make food

Question 30

What do we call it that plant shoots grow towards light

Answer 30

positively phototropic

Question 31

What do we call it that roots grow away from light

Answer 31

negatively phototropic

Question 32

What do we call it that plant shoots grow against gravity

Answer 32

negatively geotropic

Question 33

What do we call it that roots grow with gravity

Answer 33

positively geotropic

Question 34

what does photo mean

Answer 34

light

Question 35

what does synthesis mean

Answer 35

to make

Question 36

what is photosynthesis

Answer 36

Photosynthesis is the process where green plants make food using light energy

Question 37

why are leaves and plants green

Answer 37

Because the contain Chlorophyll which is a green chemical needed for photosynthesis

Question 38

where is chlorophyll found?

Answer 38

Chlorophyll is found in Chloroplasts in plant cells

Question 39

where are chloroplasts found

Answer 39

in plant cells

Question 40

what part of the plant has the most chlorophyll?

Answer 40

The leaves and any green part of the plant have chlorophyll

Question 41

how do plants make their food?

Answer 41

Energy from sunlight, with chlorophyll as a catalyst, is used to combine CO2 and H2O to form glucose and release O2

Question 42

how does response take place in plants

Answer 42

Plants respond to the stimuli of Light and Gravity

Question 43

how do plants make and store food

Answer 43

When sunlight is absorbed by chlorophyll in the chloroplasts, water is transported in the xylem vessel and carbon dioxide is taken in at the stomata in the leaves, glucose (food) is made in the leaves and oxygen is given out at the stomata. Food is stored as starch, which we test for using iodine.

Question 44

why do some plants lose their leaves in winter?

Answer 44

they find it difficult to carry out photosynthesis | save energy, not much sunlight

Question 45

word equation for aerobic respiration

Answer 45

glucose + oxygen → carbon dioxide + water

Question 46

word equation for photosynthesis

Answer 46

carbon dioxide + water → glucose + oxygen

Question 47

why are leaves flat and thin?

Answer 47

Leaves are flat and thin so sunlight can get through them

Question 48

why do leaves have stomata?

Answer 48

Leaves have tiny holes called STOMATA to allow oxygen out and carbon dioxide in

Question 49

what is the function of stomata?

Answer 49

to allow oxygen out and carbon dioxide in

Question 50

Where do plants get carbon dioxide from?

Answer 50

Carbon dioxide comes from the atmosphere

Question 51

Where do plants get water from?

Answer 51

Water comes in through the roots from the soil

Question 52

what do plants do with glucose when they make it?

Answer 52

Like us plants use glucose for growing and repairing damaged parts If they don’t use it they store it as starch this is why we can eat plants that store starch such as potatoes and wheat!

Question 53

how do plants transport glucose?

Answer 53

Plants transport the glucose around in special cells called PHLOEM cells