Photosynthesis Process plants utilise to produce their own
- Slides: 8
Photosynthesis • Process plants utilise to produce their own food • Take in: water and carbon dioxide • Produce: oxygen and glucose carbon dioxide + water 6 CO 2 + 6 H 2 O (light energy) (chlorophyll) glucose + oxygen C 6 H 12 O 6 + 6 O 2
But how does it all happen? First: look at the leaf structure. . .
cuticle upper epidermis palisade mesophyll spongy mesophyll xylem air pocket phloem lower epidermis stoma guard cell
C 6 H 12 O 6 + 6 O 2 Light-dependent reaction: -light energy converted to chemical energy -water split into oxygen and hydrogen (chlorophyll) sun 2 O ligh t H+ H 6 CO 2 + 6 H 2 O (light energy) C 6 H 12 O 6 CO 2 Light-independent reaction: hydrogen from water and carbon dioxide react to form glucose
How do plants use glucose? • Convert into cellulose for growth • Convert to other sugars to transport to other parts of the plant • To produce oils and proteins • Convert to starch for temporary storage in the leaf (on sunny days when photosynthesis rate is very high) • Convert back into energy via respiration
carbon dioxide + water glucose + oxygen = respiration!
What determines the rate of a plant’s respiration and photosynthesis? Conditions Photosynthesis v respiration Overall result Dark Respiration No photosynthesis Oxygen taken in Carbon dioxide given out Dim light Photosynthesis rate equals respiration rate Neither gas is taken in or given out as each cancels the other out Bright light Photosynthesis rate greater than respiration rate Carbon dioxide taken in Oxygen given out
What raw materials does a plant need for photosynthesis
Green plants make their own food by photosynthesis
The food that plants produce during photosynthesis is
What is the process?
What type of sae is when you own your own business
Photosynthesis and respiration of plants
What non vascular plants
Nonvascular plants reproduction
Classify the non flowering plants with examples
