What substrate does Protease act on and what is its product?

What substrate does Lipase act on and what is its product?

What substrate does Amylase act on and what are its products?

What substrate does Carbohydrase act on and what is its product?

What is a catalyst?

What are enzymes?

Why do we need enzymes?

What is a substrate?

What is the active site of an enzyme?

What is meant by enzymes being substrate-specific?

Describe the effect of increasing temperature on enzymes.

Describe the effects of pH on enzyme activity.

Which parts of the body would have enzymes with an optimum pH of:
i) 1-2?
ii) 7.5-8?

What happens to the rate of reaction when the surface area of the substrate is increased?

What happens to the rate of reaction when the concentration of enzymes is increased?

What happens to the rate of reaction when the concentration of substrate is increased?

Describe the test for the presence of starch.

Describe the test for the presence of protein.

Describe the test for the presence of reducing sugars (e.g Glucose).

Describe the test for the presence of lipids.

What needs to be considered when comparing concentration of lipid/reducing sugar/protein between samples?

Recall the 7 food groups.

Ranked in order of energy content, recall the three most energy rich food groups.

How can we compare energy content of different foods?

What is the formula to calculate the energy content in Joules of food samples?

What could be the reasons that the results from the experiment are different values from the packaging of the food?

How do you convert down the size range (e.g mm to µm) ?

How do you convert up the size range (e.g µm to mm) ?

what is the formula for magnification?

What are some of the differences between electron and light microscopes?

Define:
(i) anomaly
(ii) repeatability

Define:
(iii) reproducibility
(iv) validity

What are the units for rate?

Describe the function of:
i) Flagellum
ii) DNA
iii) Plasmids
iv) Ribosomes

Describe the function of:
v) Cell Wall
vi) Slime capsule
vii) Cell Membrane
viii) Nucleus

Describe the function of:
ix) Vacuole
x) Chloroplasts
xi) Cytoplasm
xii) Nuclear Membrane

How is a sperm cell adapted to its function? (4 points)

How is an ova adapted to its function?
(2 points)

How are ciliated epithelial cells adapted to their function?
(1 point)

What is diffusion?

Recall 2 features of Diffusion

What is Osmosis?

How do plant cells react to concentrations of water in terms of osmosis?

How do animal cells react to concentrations of water in terms of osmosis?
(Considering the absence of a cell wall)

What is active transport?

How to carrier proteins work? (in terms of active transport)