Question

1) Functions of the large intestine include :

Temporary food storage

resorption of water and compaction of feces

chemical digestion of chyme

absorption of the products of digestion

all the above

2) what does Benedict's reagent test for when analyzing amylase activity?

presence of amino acids

enzymatic activity of proteinases

hydrolysis of glucose

presence of simple sugars

3) Which of the following is NOT a basic process of the gastrointestinal system?

Filtration

absorption

digestion

secretion

motility

4) what cell produces pepsinogen?

duodenal cell

acinar cell

beta cell

chief cell

5) what does biuret reagent test for when analyzing pepsin activity?

hydrolysis of nucleic acid

presence of alcohol sugars

products of lipase

hydrolysis of proteins

Please help me answer this question

Answer 1

1. Answer-resorption of water and compaction of faeces.

• Temporary food storage is done in stomach.
• chemical digestion of chyme takes place in small intestine.
• Absorption mainly takes place in small intestine.

2. Answer- presence of simple sugars

Amylase causes hydrolysis of starch and produces simple sugar like glucose. Benedict test is used to detect presence of these simple sugars in analysis of amylase activity.

3. Answer- filtration

It's a process of excretory system.

4. Answer- chief cell

5. Answer- hydrolysis of proteins

Pepsin causes hydrolysis of proteins into peptides and further into amino acids.Biuret test is used to analyze pepsin activity