Overview Of Photosynthesis Flashcards Preview

Biology-11-Photosynthesis > Overview Of Photosynthesis > Flashcards

Flashcards in Overview Of Photosynthesis Deck (8)
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1
Q

Where does photosynthesis take place

A

Chloroplasts

2
Q

How are leaves adapted to bring together the three raw materials of photosynthesis (water, co2 and light) and remove its products (oxygen and glucose

A

A large SA that absorbs as much sun light as possible

An arrangement of leaves on the plant that minimises overlapping and so avoids the shadowing of one leaf by another

Thin, as most light is absorbed in the first few micrometers of the lead and the diffusion distance for gases is kept short

A transparent cuticle and epidermis that let light through to the photosynthetic mesophyll cells beneath

Long, narrow upper mesophyll cells packed with chloroplasts that collect sunlight

Numerous stomata for gaseous exchange so that all mesophyll cells are only a short diffusion pathway from one

Stomata that open and close in response to changes in light

Many air spaces in the lower mesophyll layer to allow rapid diffusion in the gas phase of carbon dioxide and oxygen

A network of xylem that brings water to the leaf cells, and phloem that carries away the sugars produced during photosynthesis

3
Q

What’s the overall equation of photosynthesis and the word equation

A

6co2 + 6h2O —-> C6H12O6 + 6O2

Carbon dioxide + water —> glucose and oxygen

4
Q

What are chloroplasts surrounded by

A

A double membrane

5
Q

What is the grana

A

Stacks up to 100 disc structures called thylakoids where the light depend stage of photosynthesis takes place

6
Q

What’s within the thylakoids

A

The photosynthetic pigment called chlorophyll

7
Q

How are the grana linked together

A

By bits of thylakoid membrane called lamellae

8
Q

What is the stroma? And what takes place there?

A

A fluid filled matrix

Where the light independent reaction takes place