Carbohydrates

Question 1

First step in digestion of carbohydrates

Answer 1

amylase

Question 2

Where is Amylase produces

Answer 2

the salivary glands and the pancreas

Question 3

What does amylase do

Answer 3

Amylase catalyses the hydrolysis of starch (carbohydrate) into maltose (disaccharide).

Question 4

What bonds are broken in hydrolisis of carbohydrates

Answer 4

glycosidic bonds

Question 5

What are membrane bound disaccharides

Answer 5

Membrane-bound disaccharidases are enzymes in the cell membranes of the epithelial cells in the ileum (the small intestine).

Question 6

What do membrane bound disaccharides do

Answer 6

catalyse the hydrolysation of disaccharides (e.g. maltose) into monosaccharides (e.g. glucose).

Question 7

How are monosaccharides are transported into the epithelial cells in the ileum

Answer 7

using transporter proteins.

Glucose and galactose are transported by co-transporter proteins.
Fructose is absorbed by facilitated diffusion.

Once inside the cells, monosaccharides can be used in respiration.