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Biology > Photosynthesis > Flashcards

Photosynthesis Flashcards

1
Q

What is the formula of photosynthesis?

A

Carbon dioxide + Water light energy/Chlorophyll ➡️ glucose + oxygen

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2
Q

How does carbon dioxide go into and comes from ?

A

It comes from the air and enters through the leaves into the stomata

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3
Q

How does water go into and comes from ?

A

From the soil into the the roots

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4
Q

What happens to glucose in the plant?

A

Made in the leaves and travels up and down the cells

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5
Q

What happens to oxygen in the plant?

A

From the leaves through the stomata

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6
Q

What is the top layer of a leaf?

A

Waxy cuticles

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7
Q

What is the second layer of a leaf?

A

Upper epidermis

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8
Q

What is the third layer of a leaf?

A

Chloroplast

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9
Q

What is the fourth layer of a leaf?

A

Vacuole

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10
Q

What is the fifth layer of a leaf?

A

Palisade layer

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11
Q

What is the p
Sixth layer of a leaf?

A

Cell wall

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12
Q

What is the seventh layer of a leaf?

A

Spongy layer

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13
Q

What is the eighth layer of a leaf?

A

Lowe epidermis

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14
Q

What at the bottom of a leaf?

A

Guard cells

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15
Q

What in the centre of the leaf?

A

Air space

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16
Q

What was the result the nail varnish practical?

A

There were many more stomata present on the under side of the leaf

17
Q

How do leaves adapt for quicker CO2 diffusion

A

-have lots of stomata
-the leaves are thin for a shirt diffusion pathway
- the leaves have a large surface area to allow for quicker diffusion

18
Q

What happens when plants leave to much water?

A

Wilts

19
Q

What do guards cells do?

A

Open and close to control the water Vapor

20
Q

Cytoplasm

A

Where chemical reactions occur

21
Q

Nucleus

A

Contains the DNA that controls the cell

22
Q

Cell wall

A

Contains cellulose for strength and support

23
Q

Vacuole

A

Contains cell sap for support

24
Q

Cell membrane

A

Controls what’s going in and out of the cell

25
Q

Chloroplast

A

Contains chlorophyll to trap the light
Is the site of photosynthesis

26
Q

What experiment can we do to show a leave is photosynthesising?

A

-boil the leaf to remove the waxy layer by killing cells
-place leaf in ethanol to extract chlorophyll
-rinse the leaf to remove ethanol
-test for starch using iodine solution

Biology (10 decks)

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