Keywords: alveoli, capillaries, oxygen, glucose,
B2 Topic 2 Organisms and Energy
How is anaerobic respiration different to aerobic respiration?
This topic looks at:
• Respiration – aerobic and anaerobic
• Photosynthesis and limiting factors
• Organisms and their environments
What is the word equation for respiration why do we need to respire?
What is diffusion? Draw a particle diagram to explain what you mean.
What is EPOC Exercise Post Oxygen Consumption?
EXERCISE
Aerobic respiration
The lungs are full of tiny air sacs called alveoli surrounded by capillaries.
Describe how oxygen enters the blood in the lungs and carbon dioxide
leaves. There is a diagram to help you.
What happens to the heart rate
and breathing rate during
exercise? Why?
It is possible to jog for five hours why
is it not possible to sprint for 5 hours?
Cardiac volume = stroke rate x heart rate
What do the following mean?
Cardiac volume =
Stroke rate =
Heart rate =
Keywords: lactic acid, exercise, muscles, energy, cramp
Keywords, glucose, starch, concentration gradient, sunlight, energy, chloroplasts
B2 Topic 2 Organisms and Energy
This topic looks at:
• Respiration – aerobic and anaerobic
• Photosynthesis and limiting factors
• Organisms and their environments
Label the different parts of a leaf and explain how each is adapted for
photosynthesis
What is the word equation for photosynthesis and why do plants do it?
What is diffusion? Draw a particle diagram to explain what you mean.
Osmosis What is osmosis and why dies it occur. Draw particle diagrams
to explain your answers.
If the stomata on a leaf is
blocked why will the plant die?
Keywords: chlorophyll, stomata, guard cell, waxy cuticle, gas diffusion,
Which part of the plant is responsible
for photosynthesis? Draw a cell of this
below
Keywords: high concentration, low concentration, concentration gradient, water movement
B2 Topic 2 Organisms and Energy
How does the environment affect organisms living in it?
This topic looks at:
• Respiration – aerobic and anaerobic
• Photosynthesis and limiting factors
• Organisms and their environments
What carries
a)Water and salts around the plant?
What are the following objects used for?
b) Glucose around the plant?
What is active transport, how is it different to diffusion and osmosis?
Osmosis What is osmosis and why dies it occur. Draw particle diagrams
to explain your answers.
Transpiration How is water moved around the plants? (Hint keywords;
evaporation, diffusion, xylem).
What conditions affect the rate of transpiration and how do they affect it?
Keywords: partially permeable membrane, water molecules, water vapour