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Biology > Biology > Flashcards

Biology Flashcards

1
Q

What is cancer and some risk factors

A

Uncontrollable division of cells

Smoking
Diet
Sun
Unprotected sex

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2
Q

What is a cuticle?

A

Waxy layer to protect leaf

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3
Q

What’s the upper and lower epidermis for?

A

Cover plant

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4
Q

What is the sponges mesophyll for ?

A

Gas exchange

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5
Q

Where does transpiration take place?

A

Stoma & guard cells

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6
Q

What are the palisade mesophylls ?

A

Where photosynthesis takes place

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7
Q

What does the phloem do?

A

Carries sugars from leaf to roots to be stored

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8
Q

Factors that affect transpiration?

A

Light, temperature, wind, humidity

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9
Q

How are pathogens spread?

A

Air, touch,blood, bodily fluids, vectors

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10
Q

Describe hiv

A

Virus
Spread by unprotected sex, sharing needles, mother to child, blood, breast feeding
Causes little immune response: white blood cells are attacked
Damage is aids

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11
Q

Describe rose black spot

A

A fungus

Spread by spores

Causes discolouration

Causes loss of vigour.

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12
Q

4 factors that affect photosynthesis

A

Chlorophyll
Water
Carbon dioxide
Light intensity

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13
Q

The anaerobic respiration word equation for yeast

A

Yeast+ glucose -> carbon dioxide + ethanol

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14
Q

For metabolism, what do proteins create?

A

Urea

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15
Q

What do glucose and nitrate ions create?

A

Amino acids

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16
Q

What do fatty acids and glycerol split into and why is it important?

A

They split into lipids and are important for cell structure and energy

17
Q

What three things can glucose make ?

A

Starch

Cellulose

Glycogen

18
Q

What is the cell membrane of a bacterial cell made of ?

A

Murein

19
Q

Where are prokaryotic cells found?

A

Bacteria

Cyan bacteria

20
Q

Where are eukaryotic bacteria cells found?

A

Protoctists

Fungi

Plants

Animals

21
Q

Describe algae

A

Protoctista
Adapted for photosynthesis in water
Simple aquatic organism

22
Q

Describe bacteria

A

Very small
DNA free in cytoplasm
Rings of dna called plasmids
Cell walls made of murien

Biology (1 decks)

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