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B4 a-d Pig (F)
Name the pores in the bottom of a leaf
What is the job of air spaces?
Allow gases to diffuse from palisade cell to air/air to palisade cell
List 3 adaptations of a leaf for efficient photosynthesis
Broad (large surface area) This (short diffusion distance) Palisade cells have many chloroplasts (containing chlorophyll) Veins bring water/remove sugar Stomata allow carbon dioxide in/oxygen out
What is osmosis
Diffusion of water from a high water concentration to a low water concentration across a partially permeable membrane
What is a partially permeable membrane?
A membrane that only lets certain (small) molecules, like water, through
What will happen to a red blood cell if you inject pure water into your veins?
Water will enter the cell by osmosis until it bursts
What do you call a plant cell that has lost a lot of water by osmosis
Name tube Z
What is the job of phloem?
Transporting sugars around the plant
What is this device called and what is it for?
Potometer Measuring water uptake (allow transpiration) in a plant
What is transpiration?
Loss of water vapour from the leaves
List 2 ways of increasing the rate of transpiration
Increase temperature Increase wind speed Decrease humidity Increase light intensity
List 4 minerals needed by a plant
Nitrate Phosphate Potassium Magnesium
Why does a plant need magnesium?
To make chlorophyll (for photosynthesis)
What will a plant look like if it is grown with very little nitrate?
How do minerals enter a root hair?
B4 a-d Pig (H). What is the job of air spaces?
Water movement through plants
Exchange of materials Chapter review.
Transpiration. Plant Structure Terms: Epidermis – Skin or layer on the outside. Vascular Tissue – components required to help transport nutrients and.
AQA Science © Nelson Thornes Ltd B3 1 Summary Exchange of materials Chapter review.
Transport in plants.
Unit B: Cells and Systems Topic 4: Fluid Movement in Cells.
Water movement in plants.
TRANSPORT IN PLANTS.
Photosynthesis and plant cells Photosynthesis and plant cells.
Transpiration, Respiration, and Translocation
WATER TRANSPORTATION IN PLANTS. Done by : Annabel Diong.
Year 11 Biology Revision Task 1: Complete the picture round Can you identify what each picture shows?
Boardworks GCSE Additional Science: Biology Transport in Plants
Nutrition in the Flowering Plant You need to…. Learn how water is taken up by plant roots and the path taken by the water through the root, stem.
The Leaf Tissues & Gas Exchange. Air (gases) can enter cells via passive diffusion ◦ This would take a long time Leaf has developed specialized cells.
Do now! Can you stick the target sheets in please?
Leaf Adaptation. To know how leaves are adapted for photosynthesis.
Plants and Photosynthesis
Exchange in plants Text p.228.
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