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Biology > Paper 1 > Flashcards

Paper 1 Flashcards

1
Q

Eukaryotic cells

A

DNA in nucleus

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2
Q

Prokaryotic cells

A

DNA not in nucleus

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3
Q

Mitosis

A

Cell division where chromosomes are copied

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4
Q

Magnification equation

A

Magnification = image size\object size

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5
Q

How do you get from manometers to micro metres?

A

Divide by 1000

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6
Q

How do you get from micro metres to millimetres?

A

Divide by 1000

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7
Q

Diffusion

A

High to low concentration

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8
Q

What does it mean if a potato is heavier in the experiment?

A

The water has osmosed in and diffused in through semi permeable membrane because the concentration of the sugar in the cell is greater than the sugar in the solution

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9
Q

What does it mean if a potato is light in the experiment?

A

The concentration of sugar in the solution is higher than the concentration of sugar in the cell

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10
Q

What does it mean if there is no change in mass in the potato?

A

The concentration of sugar in the solution is the same as the concentration of sugar in the potato

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11
Q

What is the equation for respiration?

A

Glucose+oxygen———>water+carbon dioxide

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12
Q

What is the equation for photosynthesis?

A

Water+carbon dioxide———>glucose+oxygen

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13
Q

what are pathogens

A

Things that cause infections diseases

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14
Q

What are examples of pathogens

A

Bacteria and fungi

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15
Q

What is the indication for startch

A

Iodine turning purple

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16
Q

What is the indication for fats

A

Cloudy ethanol

17
Q

What is an indication for glucose

A

Benedicts solution turning from blue to orange

18
Q

What do enzymes do

A

Break down molecules specific to the substance

19
Q

What does the venacarva do

A

Brings deoxygenated blood from the body

20
Q

What does the pulmonary artery do

A

Passes blood from the heart to the lungs

21
Q

What does the pulmonary vein do

A

Transfer oxygenated blood from lungs to heart

22
Q

Why does the left side of the heart have thicker muscle wall

A

Because the left side needs to pump blood around the body but the right only needs to pump it to the lungs

23
Q

What does the aorta do

A

Pumps deoxygenated blood from the heart to the body

24
Q

What is a function of the coronary arteries

A

Provide Oxygen to the heart’s muscle cells

25
Q

What controls natural resting heart rate and what can be done if this malfunctions

A

Pacemakers. doctors can implant artificial ones to correct irregularities in heart rate

26
Q

🐰❤️🐻

Is the right side the rabbit or bear side?

A

Rabbit

27
Q

🐰❤️🐻

Is the left side the rabbit or bear side?

A

Bear

Biology (1 decks)

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