nutrition- process

Question 1

What are animals classified as in terms of nutrition?

Answer 1

Animals are heterotrophs, meaning they must eat food to obtain nutrients.

Question 2

What are the five main processes of nutrition

Answer 2

Ingestion, digestion, absorption, assimilation, and egestion.

Question 3

What is ingestion?

Answer 3

Ingestion is the process of taking food into the mouth.

Question 4

What is digestion?

Answer 4

Digestion is breaking food down into smaller particles.

Question 5

What is absorption

Answer 5

Absorption is the process of nutrients entering the bloodstream.

Question 6

What is assimilation?

Answer 6

Assimilation is the movement of nutrients into body cells to be used for metabolism.

Question 7

What is egestion?

Answer 7

Egestion is the removal of undigested waste from the body as feces.

Question 8

What are herbivores?

Answer 8

Herbivores are animals that eat only plants.

Question 9

What are carnivores?

Answer 9

Carnivores are animals that eat only other animals.

Question 10

What are omnivores?

Answer 10

Omnivores are animals that eat both plants and animals.

Question 11

What are incisors used for?

Answer 11

Incisors are chisel-shaped teeth used for chopping food

Question 12

What are canines used for?

Answer 12

Canines are dagger-shaped teeth used for piercing.

Question 13

What are premolars used for?

Answer 13

Premolars are used for grinding, gnawing, or tearing food.

Question 14

What are molars used for?

Answer 14

Molars are large teeth at the back of the jaw used for chewing and grinding.

Question 15

What is the human dental formula?

Answer 15

Humans have 2 incisors, 1 canine, 2 premolars, and 3 molars on each half of both the upper and lower jaws, totaling 32 teeth.

Question 16

What kind of teeth do herbivores have?

Answer 16

A: Herbivores have large incisors and molars for chewing plants.

Question 17

What kind of teeth do carnivores have?

Answer 17

Carnivores have sharp canines and premolars for tearing meat.

Question 18

What kind of teeth do omnivores have?

Answer 18

Omnivores have a mix of sharp and flat teeth for eating both plants and meat.

Question 19

What is the human digestive system

Answer 19

It is a continuous tube called the alimentary canal, from the mouth to the anus, responsible for digestion and absorption.

Question 20

What is mechanical digestion?

Answer 20

It is the chewing or grinding of food into smaller pieces.

Question 21

What is chemical digestion?

Answer 21

It is the process of breaking down food using enzymes into smaller molecules.

Question 22

What is peristalsis?

Answer 22

Peristalsis is the squeezing action of muscles that moves food through the digestive system.

Question 23

What happens in the mouth during digestion?

Answer 23

Food is chewed and mixed with saliva, which contains enzymes that begin breaking down starch.

Question 24

What happens in the stomach during digestion?

Answer 24

The stomach churns food and mixes it with stomach acid and enzymes.

Question 25

What happens in the small intestine during digestion?

Answer 25

Most chemical digestion occurs here, and nutrients are absorbed through the walls into the blood.

Question 26

What does the pancreas do?

Answer 26

The pancreas releases enzymes for digestion and helps neutralize stomach acid.

Question 27

What does the liver do?

Answer 27

The liver produces bile to break down fats.

Question 28

What does the gall bladder do?

Answer 28

The gall bladder stores bile until needed for digestion.

Question 29

What is the function of the large intestine?

Answer 29

It absorbs water and minerals, and forms feces from undigested food.

Question 30

Where does most absorption occur in the digestive system?

Answer 30

Most absorption occurs in the small intestine, through structures called villi.

Question 31

what is the function of goblet cells

Answer 31

-secretes mucous for bolts

Question 32

what is the cardiac sphincter

Answer 32

-allows food into stomach

Question 33

what is the pyloric sphincter

Answer 33

-makes sure food doesn’t leave too early