Plant Structure

Question 1

What is a limiting factor?

Answer 1

anything that constraints the rate of reaction

Question 2

Why do farmers use greenhouses?

Answer 2

help trap heat energy
keep out pests
control conditions

Question 3

How does wind speed affect the rate of transpiration?

Answer 3

the more quick

Question 4

Where in the lead is the stomata found?

Answer 4

the lower epidermis

Question 5

Is a guard cell an organ system, organ, tissue or cell?

Answer 5

a cell

Question 6

How do plants get CO2 require for photosynthesis?

Answer 6

diffuses from the air into their leaves via stomata

Question 7

How does the level of water in the plants affect the opening and closing of stomata?

Answer 7

the guard cells become turgid with more water and opens the stomata
the guard cells become flaccid without water and closes stomata

Question 8

In which organelle does photosynthesis take place?

Answer 8

Chloroplast

Question 9

how does temperature affect the rate of transpiration?

Answer 9

High temperature means more energy which means it’s more liked to evaporate out the stomata

Question 10

What does transpiration mean?

Answer 10

the evaporation of water from the leaves of plants

Question 11

Which 4 factors affect the rate of transpiration?

Answer 11

Temperature
Light
Humidity
Wind speed

Question 12

Why is the upper epidermis transparent?

Answer 12

to allow light to pass through to the palisade mesophyll cells

Question 13

Where does photosynthesis happen?

Answer 13

in the palisade mesophyll cells

Question 14

What substance is responsible for absorbing light energy in photosynthesis?

Answer 14

Chlorophyll

Question 15

What is the role of the xylem tissue?

Answer 15

transports water and minerals ions from the roots to the stem and leaves

Question 16

What are 3 features is starch that make it a useful storage molecule?

Answer 16

Insoluble in water
It is compact
It can be easily broken down when needed

Question 17

How does wind speed affect the rate of transpiration?

Answer 17

Water vapour will diffuse more quickly
There will be a stronger concentration gradient

Question 18

is spongy mesophyll and organ or a tissue?

Answer 18

a tissue?

Question 19

Is photosynthesis exothermic or endothermic?

Answer 19

endothermic

Question 20

Why structures minimise water loss in plants?

Answer 20

Waxy cuticle
Guard cells

Question 21

How do root hair cells absorb water form the soil?

Answer 21

Osmosis

Question 22

What is the role of the phloem tissue?

Answer 22

transports dissolved sugars and amino acids

Question 23

What is xylem tissue made of?

Answer 23

dead cells

Question 24

Where can meristem tissue be found?

Answer 24

growing tips of roots and shoots

Question 25

In which organ does most photosynthesis take place?

Answer 25

leaf

Question 26

What is the role of the phloem tissue?

Answer 26

transports dissolved sugars and amino acids

Question 27

In which directions can cell sap move through the phloem?

Answer 27

Up or Down

Question 28

What are 3 environmental factors that affect the rate of photosynthesis?

Answer 28

Temperature Light Intensity CO2 concentration

Question 29

What is the Phloem tissue made of?

Answer 29

elongated cells

Question 30

What are paraffin heater's?

Answer 30

produces carbon dioxide and heat energy

Question 31

how does temperature affect the rate of transpiration?

Answer 31

Higher energy particles means its more likely to evaporate

Question 32

How does light affect the rate of transpiration?

Answer 32

more photosynthesis leads to the stomate being open more

Question 33

What are 3 factors that affect the rate of photosynthesis?

Answer 33

Temperature Light Carbon dioxide

Question 34

Where in the leaf are the stomate found?

Answer 34

The lower epidermis

Question 35

Which structures help to minimize water loss?

Answer 35

Waxy cuticle Guard cells

Question 36

Where does the energy for photosynthesis come from?

Answer 36

From the sun

Question 37

What are 5 ways plants use glucose they produce?

Answer 37

Cellular respiration Make cellulose Make starch Make amino acids Make lipids

Question 38

What is cellular respiration?

Answer 38

Breaking down glucose to release energy

Question 39

In which directions can water move through the xylem?

Answer 39

Water can only move up

Question 40

What is the phloem tissue made from?

Answer 40

elongated cells which form long tubes

Question 41

What substances absorbs light for photosynthesis?

Answer 41

Chlorophyll

Question 42

What is the word formula for photosynthesis?

Answer 42

carbon dioxide + water -> glucose + oxygen

Question 43

what is the role of the phloem tissue?

Answer 43

transports dissolved sugars and amino acids

Question 44

what is the flow of cell sap through the phloem called?

Answer 44

Translocation

Question 46

Why does the spongy mesophyll layer have air gaps?

Answer 46

to allow carbon dioxide to diffuse

Question 47

What is the Meristem Tissue made from?

Answer 47

Plant Stem Cells