Bioenergetics Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Equation for photosynthesis

A

Carbon dioxide + Water ———-> Glucose + Oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Equation for respiration

A

Glucose + Oxygen ———–> Carbon Dioxide + Water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

After 10 minutes the limewater in flask B was cloudy, but the limewater in flask A remained colourless. Explain why

A

atmospheric air contains less carbon dioxide than exhaled air
carbon dioxide is produced in (aerobic) respiration (by
woodlice)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Exercise cannot be sustained when anaerobic respiration takes place in muscle cells. Explain why.

A

muscles become fatigued / stop contracting
because not enough energy is transferred

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Explain how oxygen passes through the blood

A

diffusion, high to low concentration, through (cell) membrane/cytoplasm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The pancreas cell makes enzymes. Enzymes are proteins. Describe how the ribosomes and mitochondria help the cell to make enzymes.

A

ribosomes make proteins / enzymes
using amino acids
mitochondria provide the energy for the process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

During exercise, more oxygen is carried to the working muscles.
Explain why this is helpful during exercise.

A

for respiration
prevents anaerobic respiration
prevents build-up of lactic acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly