Wrong Answers From Multiple Choice Flashcards

1
Q

What does meiosis of diploid cell produce?

A

Genetically different haploid cells

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2
Q

Out of combustion, photosynthesis, respiration and transpiration, which is NOT part of carbon cycle?

A

Transpiration

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3
Q

Definition of genetics?

A

Mechanisms of inheritance

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4
Q

How to tell if animals are closely related in binomial system and how not to?

A

You can tell if genus is the same! But if genus is different and species is same it means they are not closely related

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5
Q

What is the xylem - level of organisation and what is its function?

A

It is a tissue, and it is used for support

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6
Q

What is continuous and discontinuous variation?

A

Continuous variation are characteristics like height or weight which is affected by genes and the environment. Discontinuous is distinct categories with no intermediates - e.g. Blood groups

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7
Q

Where is starch stored in plant cell?

A

Chloroplasts

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8
Q

Atria, left ventricle and right ventricle

Which is order of these chambers from thickest to thinnest?

A

Left ventricle, right ventricle, atria

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9
Q

What is aspirin used for to reduce risk of coronary heart disease?

A

It reduces tendency for blood to clot

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10
Q

When investigating gravitropism, what are conditions?

A

Rotate the plant around on ITS SIDE.

Don’t use any light because otherwise it may start to do phototropism

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11
Q

Epidermis, mesophyll and vascular bundle cell – which is the order of most chloroplasts to least

A

Epidermis, mesophyll, vascular bundle cell

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12
Q

What factor would result in few microscopic plants in the ocean?

A

An increase in population of microscopic animals

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13
Q

Out of ureters, arteries and phloem… which substances carry amino acids

A

Arteries (because BLOOD) and phloem

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14
Q

How does blood change after is passes through kidney?

A

It loses urea

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15
Q

Order of a normal population graph?

A

Lag, log, stationary, death

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16
Q

What processes produce continuous space for water to flow in xylem?

A

Breakdown of cell wall between adjacent cells and removal of cytoplasm in each cell

17
Q

What component of cigarette smoke causes a reduced oxygen carrying capacity of the blood?

A

Carbon monoxide (it bonds irreversibly with haemoglobin)

18
Q

After a meal containing carbohydrates, what would you expect the concentration of glucose and urea in the blood as it passes through liver?

A

Decreased glucose concentration and increased urea

19
Q

If a herbicide is sprayed on producers in food chain: plants-small fish-large fish-birds of prey, which organism would have the second largest concentration of herbicide in them?

A

Large fish- herbicides increase as trophic levels go up (bioaccumulation)

20
Q

What is the structure of a xylem’s cell wall (side wall) and end wall?

A

Side wall is thick as it contains lignin. There is a gap where end wall has been lost- end wall is absent

21
Q

Other details about structure of xylem?

A

Has a thin area of cell wall called pit. Has a transverse section. Has a space with no cytoplasm.

22
Q

When a cell has lost water to surroundings by osmosis, which part is the partially permeable membrane?

A

NOT THE CELL WALL - only the cell membrane that does not look so much like a cell membrane (shrunk/gone inwards)

23
Q

What is the structure of a xylem’s cell wall (side wall) and end wall?

A

Side wall is thick as it contains lignin. There is a gap where end wall has been lost- end wall is absent

24
Q

Other details about structure of xylem?

A

Has a thin area of cell wall called pit. Has a transverse section. Has a space with no cytoplasm.

25
When a cell has lost water to surroundings by osmosis, which part is the partially permeable membrane?
NOT THE CELL WALL - only the cell membrane that does not look so much like a cell membrane (shrunk/gone inwards)
26
What is the structure of a xylem's cell wall (side wall) and end wall?
Side wall is thick as it contains lignin. There is a gap where end wall has been lost- end wall is absent
27
Other details about structure of xylem?
Has a thin area of cell wall called pit. Has a transverse section. Has a space with no cytoplasm.
28
When a cell has lost water to surroundings by osmosis, which part is the partially permeable membrane?
NOT THE CELL WALL - only the cell membrane that does not look so much like a cell membrane (shrunk/gone inwards)
29
What is waters path exactly during transpiration?
Water enters else in xylem vessels, moves by osmosis into leaf mesophyll cells, then evaporates into the air spaces, finally diffuses out of the stomata
30
During the cycle of oxygen debt, after deep breathing occurs and extra oxygen is supplied, what happens?
Aerobic respiration of lactic acid - lactic acid is broken down
31
Where is good colour vision found in the eye and what cells result in this?
Cone cells and they are found in fovea
32
What is the only way the nitrogen in atmosphere can form nitrates in soil directly?
Lightning fixation
33
When is progesterone produced in menstrual cycle and why?
It is produced days 15-28, progesterone is secreted by corpus luteum and helps keep endometrium thick
34
How many micro meters in a centimetre?
10,000 um
35
What is function of lymphatic system?
To protect body from infection
36
In a kidney tubule, which substances are filtered out of the blood in the glomerulus?
Glucose, salts, urea and water
37
Describe the structure of lymph vessels and the flow of lymph
Lymph vessels are similar in structure to VEINS - they are thin-walled with valves that prevent backflow as the lymph is under v low pressure. Like veins, contractions of muscles help lymph to flow.
38
How are young plants supported?
Pressure of water inside cells pressing outwards on cell walls