The Digestive System

Question 1

List the parts of the digestive system (9)

Answer 1

Mouth 1
epiglottis 2
esophagus 3
liver 4
stomach 5
small intestine 6
large intestine 7
Rectum 8
anus 9

Question 2

List what the following are:

mouth
stomach
small intestine
epiglottis
esophagus

salivary amylase is?

Answer 2

The mouth is where digestion starts mechanically and food is broken down and rolled into boluses to be swallowed

Stomach is a muscular bag where food is stored to be digested by the gastric juices that secrete from the walls of the stomach

Small intestine
Is a specialized tubular structure between the large intestine and stomach that absorbs nutrients from the food

Epiglottis helps you swallow and protects your voice box

Esophagus
A long tube that food goes into to be carried down to the stomach for furthur digestion

salivary amylase is the saliva and enzyme food is mixed with to break down food

Question 3

What are gastric juices made up of?

Answer 3

hydrochloric acid
2 proteases pepsin and rennin and water

Question 4

The small intestine

list the 3 parts and its function

what are the small finger like projections in the small intestines wall?

Answer 4

Duodenum
ileum
jejunum

carbohydrates and proteins are absorbed in the duodenum and jejunum

The ileum function involves absorption of vitamin B12, bile salts and all digestion products which were not absorbed in duodenum and jejunum.

The villi

Question 5

What are the final products of digestion?

Answer 5

Glucose,
amino acids ,fatty acids and glycerol

Question 6

Muscular contractions in the stomach walls are called?

When food leaves the stomach it is a semi liquid called?

Answer 6

1.peristalsis

2.Chyme

Question 7

The types of teeth and its functions

Answer 7

incisors biting/cutting
canines tearing/grasping
premolars crushing/grinding
molars chewing/grinding

Question 8

purpose of saliva?

what causes cavities?

Answer 8

keep the mouth moist
prevent ad breathe
help swallow food

lack of moisture
plaque
sugar
not brushing tooth
not going to the dentists

Question 9

what are the following ?

Gallbladder
liver
bile duct
pancreas
pancreatic duct
bile

Answer 9

Gallbladder
a small pear shaped organ on the right side of your abdomen beneath your liver and holds digestive fluids called bile that’s released into the small intestine

A large organ in the abdomen that plays the role in important body functions such as blood filtering

bile duct is a series of thin tubes that go from the liver to the small intestine

pancreas A organ in the abdomen that plays the role in converting food into fuel for the bodies cells

Pancreatic duct is a duct joining the common bile duct this supplies it with pancreatic juice

Question 10

The 3 main enzymes

Answer 10

Amylase (made in the mouth and pancreas; breaks down complex carbohydrates)
Lipase (made in the pancreas; breaks down fats)
Protease (made in the pancreas; breaks down proteins)

Question 11

when proteins are digested what is it broken down into?

Carbonhydrates
Fats

Answer 11

Biuret

Benedict
Ethanol

Question 12

when proteins are broken down what are they broken down into?

what are carbonhydrates broken down into?

what are fats broken down into?

Answer 12

amino acids

Glucose

Fatty acids