Animals (9)- Chemical digestion and absorption

Question 1

salivary amylase

Answer 1

produced in salivary glands, digesting starch and glycogen, producing maltose

Question 2

pancreatic amylases

Answer 2

produced in pancreas, acts in small intestine, digests starch and glycogen and produces maltose

Question 3

carbohydrases

Answer 3

produced in small intestine, acts in small intestine, digests surcrose, maltose, and lactose while producing glucose, fructose

Question 4

pancreatic lipase

Answer 4

produced in pancreas, acts in small intestine, digests lipids and produces fatt acids/ glycerol

Question 5

proteases *pepsid, trypsin

Answer 5

produced in stomach and pancreas, acts in stomach? small intestine, digests protiens and produces peptides

Question 6

peptidases

Answer 6

produced in pancreas and small intestine, acts in small intestine, digests peptides and produces smaller peptides

Question 7

what two factors affect the rate at which enzymes perform their chemical reactions?

Answer 7

Temperature and PH

Question 8

why temperature

Answer 8

When temperature is increased, there is an overall increase in energy due to the addition of thermal energy to the system. The enzymes bonds are weakened and become denature.

Question 9

What does denature mean

Answer 9

to modify the molecular structure of something, especially by heat, so as to destroy or diminish some of the original properties

Question 10

Why PH?

Answer 10

Enzymes will function optimally within a specific PH range. Eg.) pepsin functions best at a ph of 2, active in the stomach.

Question 11

What must carbs be broken into for absorption

Answer 11

Monosaccharides

Question 12

What must fats be broken into for absorption

Answer 12

Fatty acids and glycerol

Question 13

What must proteins be broken into for absorption

Answer 13

Amino acids

Question 14

What must nucleic acids be broken into for absorption

Answer 14

Sugars and phosphate

Question 15

What happens to monosaccharides after absorption

Answer 15

Carried by the bloodstream to the liver. Converted into glucose by the liver and used as an energy source.

Question 16

What happens to excess glucose

Answer 16

Converted by the liver into glycogen and stored in the liver and in muscle tissues

Question 17

What happens to amino acids after absorption

Answer 17

Processed and converted into sugars, some may become a part of waste called urea while other amino acids are used to make enzymes

Question 18

What happens to lipids after absorption

Answer 18

Absorbed into walls of small intestine and reassemble into triglycerides. These triglycerides are then passed into the bloodstream, broken down back into glycerol and fatty acids for energy to cells.