Failed Qs In Paper 2 Flashcards Preview

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Flashcards in Failed Qs In Paper 2 Deck (12):
1

How do you do the quadrat thing?

Place quadrants
Randomly
Count the amount of X in them
Find the mean

2

How is pollen from wind pollinated followers adapted for pollination?

Light and small

3

Structures that bacteria have that viruses don’t...

Plasmids
Ribosomes
Flagellum
Cytoplasm
Cell wall
Cell membrane
Slime capsule

4

How to phagocytes prevent bacteria from causing diseases?

They engulf
And digest it
Using enzymes

5

How do lymphocytes prevent bacteria from causing disease?

They produce antibodies, specific to the antigen and destroy it by sticking to it

6

Bacteria in carbon cycle?

Send C into the environment from resp. Decompose the dead stuff

7

Bacteria in nitrogen cycle?

Denitrifying- nitrate to nitrite
Nitrogen fixing- nitrogen to nitrate
Nitrifying- nitrite to nitrate

8

Why couldn’t bacteria take over the world in 2 days...

Killed by their waste products

Lack of food

9

Where is lipase released?

Pancreas

10

How would the volume of water the person loses in sweat vs the volume lost in urine change in a hot place if they moved from a cold place?

More sweat lost
Less water in blood
ADH released
From hypothalamus
Collecting duct is more permeable
Less water in urine

11

What is meant by the term germination?

Root appears

12

3 conditions needed for seeds to germinate

Oxygen for resp.

Heat activated enzymes

Light activated plant growth regulators