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Cell Respiration and Photosynthesis (Higher Level) Chapters 8.1 and 8.2 in the red IB Biology

Book Standard Level Information is in chapters 3.7

and 3.8

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8.1 8.2 Test Questions Diagrams

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2 ATP Molecules6 NADH Molecules2 FADH2 Molecules

4 CO2 Molecules

What are the results of the kreb cycle?

1,2

Light Dependent and Light Independent Reactions

What kind of reactions does photosynthesis consist of?

1,3

Accepting electrons at the end ofthe electron transport chain.

during which process are oxygen molecules directly involved during cellular respiration?

1,4

Label and draw the diagram of the mitochondria

2,1

Oxidation: loss of electrons, gainof oxygen, loss of hydrogen, results in many

C-O bonds, results in compound with lower potentialenergy

Reduction: gain of electrons, loss of oxygen, gain of hydrogen, results in many C-H bonds, results in a

compound with higher potential energy

Compare Oxidation and Reduction

2,2

1- Involves electron transport chain embedded in the membrane ofthe thylakoids

2- Energy is released when electrons are exchanged from one carrierto another

3- Released energy is used to actively pump hydrogen ions into the thylakoid space

4- Hydrogen ions come from the stroma5- Hydrogen ions diffuse back into the stroma through the channels of

ATP synthase6- ATP synthase catalyses the phosphorylation of ADP to form ATP

Explain photophosporylation in terms if chemiosmosis

2,3

III only

Which of the following features is/are present in mitochondria but not in choloroplast?

I- DNA and ribosomesII- outer and inner membranes

III- cristae

2,4

Draw and Label the structure of a Chloroplast

3,1

The controlled release of energyfrom organic compounds in cells

to form ATP (with or without oxygen)

Define Cell Respiration

3,2

1- occurs with in the stroma2- ATP and NADPH are produced

by light dependent reactions to provide energy for light independent

reactions 3- The result of light independent reactions is

glucose4- These reactions begin and end with the same

substance

State 4 facts of light independent reactions

3,3

-Hydrogen-ATP

-Carbon Dioxide

What chemical substances are used during the manufacture of organic molecules in

photosynthesis?

3,4

Glycolysis

What process is this diagram showing?

4,1

Lysis

When fructose- 1, 6- bisphosphate splits into two 3- carbon sugars called glyceraldehyde-

3-phosphate, the process involves what?

4,2

-Photosystem 2 then Photosystem 1- Photosystem 2 accepts the photons at

680 nm-Photosystem 1 accepts the photons at

700 nm

Light dependent reactions consist of two photosystems. What is the order these

photosystems come in (Photosystem 1 and Photosystem 2) and how many nm are the

photons when each phosystem accepts them?

4,3

Glycerate 3- phosphate (GP)

What is the first identifiable product of carbon dioxide fixation in photosynthesis?

4,4

Oxaloacetate

When acetyl coa from the link reaction it combines with a 4- carbon compound called

what?

5,1

Matrix of the Mitochondria

Where in the mitochondria does the link reaction take place?

5,2

-Electrons-Hydrogen Ions

-Oxygen

When photolysis occurs and splits the water molecules during light dependent reactions

what are formed?

5,3

1- temperature2- CO2 concentration

State two factors in the environment of a plant, apart from light intensity, that can affect the rate of photosynthesis in the

plant.

5,4

ComplexCarbohydrates

When triose phosphate leaves the cycle they become sugars that are used to make what?