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Daily Brain Steamer

Which one of the following figures represents the changes in [H

2

0], [O

2

], and [CO

2

] in the avocado container after 5 hours?

What will happen to the plant’s biomass?

↓ ↑ =

Announcements

Biome ecosystem project and presentations

(45pts) due this week

Biology Club meeting Tuesday at 2:00pm

Homework:

Vocab 4.2 (Due last class meeting this week)

Practice biome project presentation

Study for Midterm (≈40pts) next week

Midterm Topics

Cellular Respiration***

Photosynthesis***

Cycling Matter

Flow of Energy through biomes

Dynamic Equilibrium in organisms, populations, and ecosystems

Anthropogenic effects

Conservation Biology

Diffusion and concentration gradients

Biogeochemical cycles

Anthropogenic effects

Energy flow through an ecosystem

Photosynthesis

Calvin Cycle

Light RXNs

Electron transport chain

Concentration Gradient

Diffusion

Osmosis

Chloroplast

Thylakoid

Stroma

Vocab 4.2

Cellular respiration

Mitochondria

Krebs Cycle

Glycolysis

Oxidative phosphorylation

ATP

Active and Passive Transport

Goals

1. Describe the movement of molecules

2. Understand the vital role of ATP in all living things

3. Identify and describe the major locations and events of cellular respiration and explain how ATP is made during cellular respiration

Diffusion and Concentration gradients

A process where molecules tend to move from an area of higher concentration to an area of lower concentration

Passive Transport higher concentration lower concentration

Active Transport

Which one do you think requires energy?

Where does the energy come from?

Ultimately, the source of energy is the sun

Light

+ 6CO

2

+ 6H

2

0 → C

6

H

12

O

6

+ 6O

2

C

6

H

12

O

6

+ 6O

2

→ 6CO

2

+ 6H

2

0 +

ATP

However, cells can’t use the sun for power. But cells CAN use ATP

ATP

- The energy currency of the cell

- A molecule packed with energy that the cell can use to power various functions

- A rechargeable “battery” that all cells use for energy

Light

+ 6CO

2

+ 6H

2

0 → C

6

H

12

O

6

+ 6O

2

C

6

H

12

O

6

+ 6O

2

→ 6CO

2

+ 6H

2

0 +

ATP

Consumers, decomposers, and producers can all perform cellular respiration

Inorganic output

Organic input

C

6

H

12

O

6

+ 6O

2

→ 6CO

2

+ 6H

2

0 +

ATP

Cellular Respiration

1. Location

Cellular Respiration

1. Location

2. Glycolysis

Cellular Respiration

1. Location

2. Glycolysis

3. Krebs Cycle

Cellular Respiration

1. Location

2. Glycolysis

3. Krebs Cycle

4. Electron transport chain and

ATP production

Goals

1. Describe the movement of molecules

2. Understand the vital role of ATP in all living things

3. Identify and describe the major locations and events of cellular respiration and explain how ATP is made during cellular respiration

Exit Pass 4.2

1. Write observations from demo:

H

2

O + CO

2

↔H

2

CO

3

2. Hypothesize what can we do to revert the solution back to the original color?

Use remainder of period to:

Practice your presentations

Vocab 4.2

Study for Midterm

Turn in 8-3

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