Food Production & The Environment

Food Production Action in Plants

Plant cells ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Animal cells ,[object Object],[object Object],[object Object],[object Object],[object Object]

Photosynthesis ,[object Object],[object Object],[object Object],[object Object]

Sunlight & chlorophyll CO 2 + H 2 O C 6 H 12 O 6 + O 2

What factors can affect the rate of photosynthesis? ,[object Object],[object Object],[object Object],[object Object],Water + carbon dioxide glucose + oxygen 6 H 2 O + 6 CO 2 C 6 H 12 O 6 + 6 O 2

The interdependance between plants and animals ,[object Object],[object Object],[object Object],[object Object]

How does carbon dioxide enter and oxygen go out of the leaves ? ,[object Object],[object Object],stoma Guard cell

How does the water get into plants? ,[object Object],[object Object],A root hair cell has a large surface area and thin walls to help water uptake

Osmosis Selectively permeable membrane

Why is water needed in plants? ,[object Object],[object Object],[object Object]

Transporting substances inside the plant ,[object Object],[object Object],[object Object],[object Object]

Phloem ,[object Object],[object Object],[object Object],[object Object]

A cross-section through a stem, stained to show the phloem and xylem vessels

What else can get out of leaves through the stomata? ,[object Object]

What is transpiration? ,[object Object],[object Object],[object Object],[object Object]

Why is transpiration useful? ,[object Object],[object Object]

What factors can affect the rate of water loss through stomata? ,[object Object],[object Object],[object Object],[object Object]

Why do plants need minerals? ,[object Object],[object Object],[object Object],Leaves showing varying amounts of magnesium deficiency

How do plants get their minerals? ,[object Object],[object Object],[object Object],[object Object]

What is active transport? ,[object Object],[object Object],[object Object]

What are plant hormones? ,[object Object],[object Object],[object Object],[object Object]

How can we use plant hormones commercially? ,[object Object],[object Object]

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Food Production & The Environment

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