PhotosynthesisB2 2.1, 2.2, 2.3

Photosynthesis Get into partners Create a poster, where you depict all the

knowledge you know about Photosynthesis:

- The equation- Why it happens- How can you tell a plant is doing

photosynthesis

Note taking time! Watch this:

Create notes as you watch, and listen carefully. Put your hand up if you want me to pause and discuss something

http://www.youtube.com/watch?v=xEhvsXG8cNs

Leaf adaptations Broad -> L.S.A? Chloroplasts and chlorophyll = Adapt. Air spaces = diffusion (CD + O)? Veins (X + P)?

Structure of a Leaf

Is it just plants that photosynthesize?

No!!Algae do as well!! =)

So everytime I talk about photosynthesis I mean both plants and algae!!

Where do they get CO2?

How do they store the glucose??

Starch…the test?

Limiting FactorsBirthday girl!! HAPPY BIRTHDAY MARIAM!!

Lets say she has cake. She will give cake to everyone…But what if we don’t have all the equipment we need???

Limiting Factors Whatever is in Short Supply is a limiting

factor! Tell me what do plants need for

photosynthesis to happen??

(1 min group brainstorming)

Photosynthesis Essentials

Light!! Carbon Dioxide!!! Temperature

Reward Cake Let’s have some real cake to reward

ourselves!

Limiting Factors

Limiting Factors: Light

Limiting factors: CO2

Limited factors: temperature

Photosynthesis Two stages!!!

1. Light dependent stage

2. Light independent stage

When you reject sunshine

Enzymes….

Enzymes

What do molecules do when they are

hot?

Let’s be enzymes!!!

What happens?

Limited factors: temperature

Limiting Factors

IV?DV?

Respiration

Hello my dears!!

Plants need to do respiration so they

can be like me, MRS GREN

BUT also they need respiration for

energy to do the formula you will see on the next page…

How do plants use glucose?

Sugar + nitrate ions + mineral ions…

= amino acids….

= proteins

= enzymes

AlgaeAlso need nutrients,

Nitrates

minerals

Fats and OilsPlants store fat too!!!So do algae!

Fats and Oils To store in cells when food is

low, a good source of energy Stronger cell walls! To store the fat in the seeds,

so that the new plant has plenty of food in order to germinate (and grow)

Veins

Moving food

Soluble vs Insoluble

Storage for survival

Tubers!

Storage for Survival

Bulbs!