Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism....

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Unit 3 Topics 1 and 2

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Transcript of Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism....

Page 1: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Unit 3

Topics 1 and 2

Page 2: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Topic 1: Cellular energy

Metabolism

The sum of all reactions of an organism.

Anabolic reactionsCatabolic reactions

Helps to maintain homeostasis.Requires energy

Page 3: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Cellular energy

Page 4: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Why do cells need energy?Cells carry out three kinds of energy-requiring work:

ChemicalMechanicalTransport

Page 5: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Energy Big Picture

ALL cells (plant and animal) need to make ATP to do work.

Photosynthesis (only plants)Cellular respiration (plants and animals)

6CO2 + 6 H2O C6H12O6 + 6O2

Page 6: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Photosynthesis: the “Big Picture”

QuickTime™ and a decompressor

are needed to see this picture.

Page 7: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Chlorophyll b and carotenoids are sometimes referred to as accessory pigments. Why does

this make sense?

Catalyst:

Page 8: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Leaf structure

Page 9: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Chloroplast structure

Page 10: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

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6CO2 + 6H2O enzymes & chlorophyll ⏐ → ⏐ ⏐ ⏐ ⏐ ⏐ C6H12O6 + 6O2

Stage 1:

Light-dependent reactions

Stage 2:

Calvin cycle

Light energy is converted to chemical energy (as NADPH and ATP).

Glucose is made from CO2 and hydrogens carried by NADPH using ATP energy.

Photosynthesis is a net __________________________________ reaction because there is more energy in the bonds of ______________________ than there are in the bonds of the ______________________________.

Page 11: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.
Page 12: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.
Page 13: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.
Page 14: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.
Page 15: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Catalyst:Which enzyme catalyzes the production of ATP?

Why is water split during the light reactions?

Where does the hydrogen come from to make glucose?

Page 16: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.
Page 17: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.
Page 18: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

Calvin cycle

Page 19: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

What factors might affect the rate of photosynthetic reactions?

SUMMARY

Page 20: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.
Page 21: Unit 3 Topics 1 and 2. Topic 1: Cellular energy Metabolism The sum of all reactions of an organism. Anabolic reactions Catabolic reactions Helps to maintain.

starch,sucrose,cellulose& more

1C CO2

Calvin cycle

5CRuBP

3C

RuBisCo

1. Carbon fixation

2. Reduction

3. Regenerationof RuBP

ribulose bisphosphateribulose

bisphosphate carboxylase

6 NADP

6 NADPH 6 ADP

6 ATP

3 ADP

3 ATP

usedto make

glucose

3C

3CG3Pglyceraldehyde-3-P

C C C C C

C C C C C

C C C C C

6C

C C C C C C

C C C C C C

C C C C C C

C C C

C C C

C C C

C C C

C C C

C C C

PGAphosphoglycerate

C C C

C C C

C C C

C C C

C C C

C C CC C C

CC

C

C C C= =

|H

|H

|H

|H

|H

|H

C C C– –

5C


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