The Compendium of Life's Activities

Question 1

Animals acquire much needed nutrients through ________ of food.

Answer 1

Ingestion

Question 2

composed of complex molecules such as starches, fats and proteins which need to be broken down to simplest form before the body can assimilate them.

Answer 2

Food

Question 3

The process of breaking down food

Answer 3

Digestion

Question 4

Digestion involves the action of certain enzymes including _______ and ________.

Answer 4

-amylase
-pepsin

Question 5

enzyme that acts the food that enters the oral cavity.

Answer 5

Salivary enzymes

Question 6

Food that enters the oral cavity is converted into a _________.

Answer 6

Semi-solid mass

Question 7

the semi-solid mass then swallowed and find its way into the __________.

Answer 7

Stomach

Question 8

it is where the terminal digestion and absorption of the extracted nutrients happens.

Answer 8

Small intestine

Question 9

A part of the digestive system that is responsible for breaking down large food materials into smaller particles.

Answer 9

Mouth

Question 10

it is broken down or ‘hydrolysed’ by salivary amylase

Answer 10

Polysaccharides

Question 11

A chemical that is used to stimulate salivation.

Answer 11

Paraffin

Question 12

the enzyme solution in the demonstration of polysaccharide in the mouth

Answer 12

Filtered saliva

Question 13

A positive test result is observed with colors ______/_________/_________.

Answer 13

blue, purple, black color

Question 14

color indicates the higher concentration of starch.

Answer 14

Darker

Question 15

color that indicates negative result

Answer 15

Yellow

Question 16

a chemical reagent which is made up of a complex mixture of sodium citrate, sodium carbonate, and the pentahydrate of copper(II) sulfate.

Answer 16

Benedict’s reagent

Question 17

it is in the gastric juice that deteriorates the food

Answer 17

hydrochloric acid

Question 18

-is a powerful enzyme produced in the stomach that aids in the digestion of proteins.
-secreted by the stomach’s chief cells in an inactive form known as pepsinogen, is responsible for mediating protein digestion in the stomach chamber.

Answer 18

pepsin

Question 19

Benedict’s color is blue but, if simple carbohydrates (reducing sugars) are present, in will change color _______/ ________, __________.

Answer 19

-green/yellow
-red

Question 20

if the amount is low the color is

Answer 20

green or yellow

Question 21

if the amount is high the color will change into

Answer 21

Red

Question 22

secreted by the stomach

Answer 22

Gastric digestive juices

Question 23

the main acid in the stomach juices

Answer 23

Hydrochloric acid

Question 24

act of grouping fats into small clusters to increase their surface area in the small intestine.

Answer 24

Emulsification of fats

Question 25

an enzyme from the pancreas, then carries out the actual digestion of the fats.

Answer 25

Lipase

Question 26

a sac-like structure which also functions for the temporary storage of prior food to its movement to the small intestine.

Answer 26

Stomach

Question 27

secretes bile that is stored in the gall bladder prior to its release in the duodenum.

Answer 27

Liver

Question 28

Secretion of bile contains salts which reduce large fat globules into small droplets in a process known as

Answer 28

emulsification

Question 29

Where does the digestion of fats occur?

Answer 29

Small intestine

Question 30

the digestion of fats that occurs in the small intestine has the aid of __________.

Answer 30

pancreatic lipase

Question 31

Results in the breaking down of fats

Answer 31

formation of fatty acids and glycerol

Question 32

the building blocks of the fat in our bodies and in the food we eat.

Answer 32

fatty acid

Question 33

attracts water into the gut, softening stools and relieving constipation.

Answer 33

Glycerol