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BIOA01 Module 2 > Lecture 7 > Flashcards

Lecture 7 Flashcards

1
Q

What is photosynthesis?

A

Photosynthesis is the major pathway in which energy/carbon are incorporated into carbohydrates

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2
Q

What is the Calvin cycle?

A

It’s a three step process in which CO2 is used to synthesize carbs, capturing sunlight to chemical form

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3
Q

How does photosynthesis help us?

A

It produces oxygen

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4
Q

What’s an example on how photosynthesis occurs everywhere

A

In the desert photosynthetic bacteria form an easily distributed layer on the surface

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5
Q

What’s an uncommon photosynthetic organism?

A

Geo Syon pyriform trap a group of photosynthetic bacteria in order to do photosynthesis

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6
Q

What is the general equation for photosynthesis and what type of reaction is it?

A

CO2 plus H2O goes to C6 H12 O6 + O2
Redox reaction

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7
Q

What is related to the oxidation of water?

A

It is linked with the reduction of CO2 through redox reactions, making up the photosynthetic electron transfer chain

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8
Q

Where does photosynthesis happen?

A

Photosynthesis begins in the photo systems

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9
Q

What is a photo system?

A

Photo system is a pigment complex that absorbs light and

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10
Q

What is the movement of electrons used to drive synthesis for ATP and NDPH used for

A

It is used to synthesize carbs from CO2

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11
Q

What occurs in the chloroplast?

A

Photosynthesis occurs here

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12
Q

What type of membranes do the chloroplast have?

A

Like the mitochondria chloroplast have outer and inner membrane

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13
Q

What is a thylakoid membrane?

A

A membrane around the thylakoid

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14
Q

What is the grana?

A

A stacked structure of thylakoid membrane

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15
Q

What percent of ATP is consumed in the Calvin cycle?

A

All ATP is consumed

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16
Q

What is the reactants and product for cell respiration? What type of reaction is it?

A

The reactants are glucose and O2 while the products are CO2 and H2O. This is an exogenic reaction.

17
Q

What are the products and reactants for photosynthesis and what type of reaction is it?

A

Reactants are CO2 and H2O. The products are glucose and oxygen, and this is an endogenic reaction.

18
Q

How many steps are there in the Calvin cycle and what are the names?

A

There are three main steps called carboxylation than reduction, then regeneration

19
Q

What are the three steps in step one carboxylation

A

CO2 combines with five carbon compound to form RUBP

It’s in catalyzed by RuBisCO to form a six carbon

And then broken to become 2 3-carbon molecules 3-PGA

20
Q

What happens in reduction for the Calvin cycle?

A

NADPH and ATP from before the Calvin cycle our use is reducing agents to make Triosephosphate

21
Q

What happens in regeneration for the Calvin cycle?

A

Three carbon compounds are recognized/combined to make RUBP

22
Q

What is starch and how is it stored?

A

It’s the excess carbs that are converted and stored in the chloroplast

23
Q

What is light?

A

Type of electromagnetic radiation

24
Q

What is visible light?

A

A portion of the electromagnetic spectrum

25
Q

What are pigments? How do they contain color?

A

They are molecules that absorb wavelength of visible light and contain colour due to reflecting light

26
Q

What is chlorophyl and why is it green?

A

It’s pigment for photosynthesis and is green as green light is reflected

27
Q

What are the two types of chlorophyl

A

Chlorophyl a and chlorophyl B

28
Q

What happens when light is absorbed?

A

Heat and fluorescence is released which result in the production of ATP

29
Q

What does the chlorophyl do with absorbed light?

A

It uses the energy from that to transfer to another chlorophyl

30
Q

What is a pair of chlorophyl known as?

A

The reaction centre

31
Q

What does the reaction centre do?

A

They transfer light energy to adjacent electron transfers which sends the energy to another reaction centre to finish the production of NADPH

BIOA01 Module 2 (10 decks)

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