Human Digestive System worksheet

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NAME: ____________________________________

Human Digestive System

(1) Match the words provided to the letters in the diagram of the digestive system. Put your answer in the table:

Stomach Salivary glands Pancreas Rectum Mouth Liver

Large intestines Oesophagus Gall Bladder Small intestines

Letter

A

B

Part of Digestive System

C

D

E

F

G

H

I

J

(2) Which of the following gives the correct order for food as it passes through the organs of the digestive system? a.

Mouth, oesophagus, stomach, gall bladder, pancreas, large intestines, small intestines b.

Oesophagus, epiglottis, stomach, liver, small intestines, large intestines, anus c.

Mouth oesophagus, stomach, small intestines, large intestines, anus d.

Mouth, liver, gall bladder, stomach, large intestines, small intestines, anus.

(3) Which part of the digestive system is responsible for absorbing water: a.

Small intestines b.

Large intestines c.

Kidneys d.

Stomach

(4) Which part of the digestive system contains Hydrochloric acid and is coated with mucus for its protection: a.

Rectum b.

Small intestines c.

Stomach d.

Oesophagus

NAME: ____________________________________

(5) Which part of the following is the section of the digestive system where most enzymes are added? a.

Large intestines b.

Mouth c.

Stomach d.

Small intestines

(7) Bile is made in the liver and released into the small intestine. Its job is to break down __________? a.

Nutrients b.

Fats c.

Proteins d.

Water

(9) Which of the following are NOT a part of the digestive system? a.

Oesophagus b.

Kidneys c.

Anus d.

Liver

(11) Villi are found in what part of the digestive system? a.

Mouth b.

Stomach c.

Large intestines d.

Small intestines

(13) Which of the following best describes the role of the oesophagus in the digestive system: a.

Mucus is secreted to protect stomach b.

Sends food from mouth the stomach c.

Helps absorb nutrients

(15) Which of the following organs help break down food in the small intestines: a.

Liver, kidneys, stomach b.

Mouth, oesophagus, stomach c.

Liver, pancreas, gall bladder d.

Stomach, small intestines

(6) Bile is made in ________? a.

Liver b.

Stomach c.

Gall bladder d.

Small intestines

(8) The oesophagus connects the mouth to the _________? a.

Mouth b.

Small intestines c.

Liver d.

Stomach

(10) Where is solid waste (poop) stored? a.

Anus b.

Rectum c.

Large intestines d.

Stomach

(12) Diarrhoea is when the __________ do not absorb water? a.

b.

c.

d.

Rectum

Anus

Stomach

Large intestines

(14) The main function of the stomach is to: d.

Breaks down food to be absorbed into bloodstream a.

Store food b.

Produce hydrochloric acid c.

Break down food d.

All of the above

(16)

The “tentacle” like structure along the small intestines are called

____________: a.

Capillaries b.

Bile c.

Liver d.

Villi

NAME: ____________________________________

(17) The main function of the small intestines is to: a.

b.

c.

d.

Extract and absorb nutrients

Kill bacteria

Excrete solid waste

Releases enzymes to break down food

(18) Digestion beings in the mouth. Which of the following statement is

INCORRECT? a.

The tongue helps absorb nutrients b.

The saliva helps break down food c.

The tongue keeps food in place in the mouth while the food is being chewed d.

Teeth help chew food into smaller pieces

(19) Complete the cloze passage about the digestive system, with the words in the box below.

Mouth

Anus nutrients filters absorb enzymes hydrochloric gall liver mucus bile

Saliva small intestines

Rectum oesophagus villi water stomach Large intestines

The human digestive system is a group of organs that break down food, absorb ____________ and remove unused waste out of the body. Digestion begins in the ______________, where _____________ starts to break food down. Chewed food then travels down the _______________ into the stomach. The

_____________ produces ___________________ acid to help break down food. Hydrochloric acid is dangerous, as it can burn the stomach. To prevent this, the stomach is coated in a slimy substance called

______________. From the stomach, liquid food travels to the _________________where it is absorbed through “tentacles” called ____________. The pancreas, _______________ and ________________ bladder release juices called ________________ and _____________ to help absorb nutrients in the small intestines. Nutrients absorbed from the small intestines are sent to the liver where it ____________ toxins and turns it into waste. The left over liquid food is sent to the ____________________. It is the last chance for the body to absorb _____________ and nutrients before it is stored in the ___________ as poop. When we go to the bathroom, poop exits our body from the _______________.

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