Plant cells and photosynthesis revision

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  • Created by: ayse1
  • Created on: 23-04-14 10:46
What is the equation for photosynthesis?
Water + carbon dioxide -----> glucose + oxygen
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Which cells carry out the most photosynthesis?
The leaf cells
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How can you tell which cells carry out the most photosynthesis?
The cells which contain the most cholrophyll - in this case the leaf cell
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What are two features of a plant cell that differ from animal cells?
Plant cells have a cell wall and chloroplasts
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Which vessel is the water in a leaf carried through?
The phloem vessel
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What else do the vessels in the leaf carry?
The sugars which are obtained through photosynthesis
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What direction does the water travel in the xylem?
Upwards
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What is a hypnotic solution?
A solution which has a higher water potential than the cell inside it
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What happens to a red blood cell in a hypnotic solution?
The water will travel into the cell, eventually causing it to explode as it does not have a cell wall
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Which surface of a leaf has more stomata?
The lower epidermis
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How do plants maximise their surface area for absorption?
Root hairs and lateral branches
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What part of the root absorbs water and minerals?
The root hairs
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What are three functions of roots?
To anchor the plant, to absorb water from the ground and to absorb minerals from the ground
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How does water move into a root cell?
By osmosis - the water moves through layers of the root from a high water potential to a low water potential through the semi permeable membrane
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How does water pass through the cortex?
The water in the root hair travels into cells with lower water potential wich then transports the water into other parts of the root via osmosis
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How does water enter the xylem?
The pressure of the water around the xylem is enough to force it in, even though the xylem already has a high water potential
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What are the basic parts of a plant cell?
Cell wall, cell membrane, nucleus, cytoplasm, mitochondria, chloroplasts, vacuole
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What is the main function of the nucleus?
It contains DNA
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What is the function of the cytoplasm?
Most chemical reactions take place here, controlled by enzymes
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What is the function of the cell membrane?
Controls what goes in and out of the cell - it is semi permeable
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What is the function of mitochondria?
Releases energy for the plant by respiration?
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Card 2

Front

Which cells carry out the most photosynthesis?

Back

The leaf cells

Card 3

Front

How can you tell which cells carry out the most photosynthesis?

Back

Preview of the front of card 3

Card 4

Front

What are two features of a plant cell that differ from animal cells?

Back

Preview of the front of card 4

Card 5

Front

Which vessel is the water in a leaf carried through?

Back

Preview of the front of card 5
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