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Edexcel 9-1 Biology Plant structures Flashcards | StudBud
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Edexcel 9-1 Biology Plant structures
Edexcel 9-1 Biology Plant structures
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#GCSE #9-1 #Edexcel #Biology #Plants #photosynthesis
Flashcards
22 cards
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Practice quiz
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Questions
22
Answers
1
How do minerals enter the root hair cell from the soil?
Diffusion and Active transport
Osmosis
Diffusion only
2
A plant is which part of a food web?
Predator
Consumer
Prey
Producer
3
At night what causes the guard cells to close the stomata?
Water flows into the guard cells making them rigid
Water flows into the guard cells making them flaccid
Water flows out of the guard cells making them rigid
Water flows out of the guard cells making them flaccid
4
Where in a cell does photosynthesis occur?
Ribosome
nucleus
Chloroplast
Mitochondria
5
We can investigate the rate of transpiration in a plant using which piece of equipment?
Transpirator
Translocator
Potometer
Plantometer
6
Which type of plant cells contain the most chloroplasts?
Spongy mesophyll
Guard cells
Palisade mesophyll
epidermal cells
7
How does water pass through the membrane of root hair cells?
Active transport
Osmosis
Diffusion
8
Producers produce their own biomass. What is biomass?
The mass of a population of the plant
How heavy an organism is
The mass of the materials in an organism
A type of renewable fuel
9
The tiny holes in the leaf (stomata) allow carbon dioxide to get into the leaf through______
Osmosis
Diffusion
Active transport
currents
10
What pulls water up the plant in transpiration?
Active transport
Water evaporating from the stomata
Weak forces of attraction between water molecules
New water entering the roots
11
What is a limiting factor?
A factor that speeds up photosynthesis
A factor that increases the rate of respiration
A factor that stops photosynthesis
A factor that stops the rate of photosynthesis increasing
12
Which cells transport water in plants?
Xylem
Phloem
Companion Cells
Sieve Cells
13
Which limiting factor of photosynthesis, does this graph represent?
Lack of sunlight
Temperature
Lack of carbon dioxide
Lack of water
14
What causes the flow of sucrose through a plant in translocation?
Pumping from the companion cells
Pumping from the sieve cells
Diffusion from the sieve cells
Diffusion from the companion cells
15
How have xylem adapted to their role?
They are made of dead cells with no cytoplasm
Their do not have pores to allow water between vessels
They have walls containing no lignin
All of the above
16
When do minerals enter the root hair cell through active transport?
moving from a high concentration to a low concentration
moving from a low concentration to a high concentration
17
Plants and ________ use photosynthesis to create glucose.
Viruses
Fungi
Animals
Algae
18
Complete the balanced symbol equation: 6CO
2
+ 6H
2
O --> _________ + _________
6C6H12O6 + O2
C6H12O6 + 6O2
6C6H6O12 + O2
C6H6O12 + 6O2
19
Why do plants need water?
all of the above
Photosynthesis
Carrying dissolved minerals and sugar
Keeping cells turgid
20
How can we find the rate of transpiration of a plant using a potometer?
Time taken / √distance bubble moves
Distance bubble moves / time taken
Distance bubble moves x time taken
Time taken for bubble to move / distance moved
21
Complete the word equation for photosynthesis: ___________ + _________ --> Glucose + Oxygen
Light + Water
Carbon dioxide + Water
Nitrogen + Carbon dioxide
Nitrogen + Water
22
Which sugar is transported by the phloem?
Lactose
Glucose
Fructose
Sucrose
