Photosynthesis and respiration: making and breaking down sugars

1
Photosynthesis and respiration making and
breaking down sugars

• What do plants need to grow?

2
Parts of a Seed
Seed coat
Embryo
Cotyledon
3
Using stored glucose

• Respiration
• Glucose 6O2 6CO2 6H2O
• Glucose C6H12O6

4
What happens when the seed glucose runs out?

• Photosynthesis

5
Synthesizing new glucose

• Photosynthesis
• 6CO2 6H2O Glucose 6O2

6
Where in the plant do photosynthesis and
respiration occur?

• Photosynthesis Leaf cells
• Respiration All cells

7
Where in plant cells do photosynthesis and
respiration occur?

• Photosynthesis Chlorophyll inside
  chloroplast
• Respiration Mitochondria

8
Photosynthesis or respiration?

• Seed Germination
• Moisture
• Warmth

9
The stomata the gate keepersCO2 in, water out
Stomata on leaves
10
Plant Life Cycle

• Seed Set and Germination

11
Plant Life Cycle

• Plant Growth
• Nutrients

12
Seed germination experiment

• What can we learn about seeds?

13
Plant Life Cycle

• Photosynthesis
• Water
• Nutrients
• BUT HOW DO THEY GROW???