Digestion Overview & Textbook

Question 1

The digestive process can be divided into which 4 phases?

Answer 1

1. Ingestion
2. Digestion
3. Absorption
4. Defecation

Question 2

What is ingestion in simple terms?

Answer 2

swallowing and peristalsis

Question 3

What is digestion in simple terms?

Answer 3

the physical (by teeth) and chemical (by enzyme) breakdown of food into nutrients (unit molecules) small enough to diffuse into cells

Question 4

What is absorption in simple terms?

Answer 4

diffusion and active transport of nutrients into blood

Question 5

What is defecation in simple terms?

Answer 5

removal of undigested material

Question 6

what is the chemical breakdown of starch into glucose?

Answer 6

Starch

Amylaze

Maltose

Maltase

Glucose

Question 7

What is the chemical breakdown of protein into amino acids?

Answer 7

Protein

Pepsin & Trypsin

Peptides

Peptidases

Amino Acids

Question 8

What is the role of Bile?

Answer 8

It emulsifies fats into smaller molecules but it is not an enzyme

Question 9

What is the chemical breakdown of fats into fatty acids & glycerol?

Answer 9

Fats

lipase

Fatty acids & Glycerol

Question 10

What is the chemical breakdown of nucleic acids into nucleotides?

Answer 10

Nucleic Acids

Nucleases

Nucleotides

Question 11

What is the role of the mouth in digestion?