Photosynthesis Flashcards
Why are the chloroplasts short and fat rather than tall and thin?
To cover more surface area and therefore capture more sunlight
What is the word equation for photosynthesis
Carbon dioxide + water —> oxygen + glucose
What is the symbol equation for photosynthesis?
CO2 + H2O —> C6H12O6 + O2
Why do plants produce glucose in photosynthesis. What is it stored as
To use for respiration - stored as a starch
What do plants take in
Water, carbon dioxide, sunlight
What is the waxy layer for
So it doesn’t absorb too much water
What is photosynthesis
A chemical reaction that happens in green plants and algae
Why does cutting down trees contribute to global warming
Because they produce oxygen and take In carbon dioxide
What are chloroplasts
Contains greens pigment chlorophyll which absorbs sunlight for photosynthesis
Why are leaves thin?
Provides a short distance for carbon dioxide to move by diffusion into the leaf
What is the stomata for
Allows carbon dioxide to move by diffusion onto the lead
What are the guard cells for
To open and close the stomata depending on the conditions
What is the xylem for
To transport water
What is the Phloem for
To transport food
Why do lead have large surface areas
So that it can absorb a lot of light
Why is the palisade cell at the top
It is where the light hits first (after the waxy layer)
Where is water absorbed
the root hair cells
What are some qualities of root hair cells
Big surface area and thin walls - let water pass easily
What do plants do when it’s dark
Respire, no photosythesis
What do plants do when it’s light
Photosynthesise and respire
What are the air gaps for
Allows gases to go through
Spongy layer
Absorbs gases
Petal
Attract bees and insects for pollination
Stem
To hold the plant up
Carries water from the roots to the leaf
