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WorksheetsNutrition in Humans
Total questions: 27
Worksheet time: 19mins
What is digesiton?
absorption of nutrients into the blood
the use of nutrients to make energy
the breakdown of nutrients into smaller substances
the intake of food through the mouth
Which organs involve absorption?
A, B & C
D, E & F
C & D
E & F
Which organs digest proteins?
A, B & C
C and D
D and E
A and F
Which organs do not produce enzymes?
A, B and C
B and D
B, C and F
A, C and F
The enzyme that digests proteins is called (a) .
(a) is the enzyme that digests fats.
Starch is digested by the enzyme (a) .
Bile is responsible for the (a) of fats into smaller droplets.
Which organ is bile produced?
liver
pancreas
stomach
small intestine
Which structure is bile stored in?
bile duct
gall bladder
liver
kidneys
Which of the following is true about bile?
1. It does not contain any enzymes.
2. It increase the surface area to volume ratio for enzymes to digest.
3. It is a bluish liquid.
1 and 2
2 and 3
1 and 3
1, 2 and 3
Which of the following is true about the large intestine?
1. It absorbs only water
2. It does not produce any enzymes
3. It is the site where faeces are formed.
1 and 2
1 and 3
2 and 3
1, 2 and 3
The process where absorbed nutrients are used for various functions (e.g. make energy, formation of new tissues)
(a)
The process of released undigested food matter is called (a) .
What is peristalsis?
Process where food is mixed and broken down in the stomach
The process where muscles in the oesophagus contract and relax to push food down,
What is the main function of the stomach?
temporarily store food
digest proteins into polypeptides
produce hydrochloric acid
all of the above
Which organ does not produce enzymes?
liver
pancreas
mouth
small intestine
The liver is responsible for the breakdown of excess amino acids to form (a) .
Chewing and churning of food in the stomach are examples of (a) digestion.
Which of the following is a type of chemical digesiton?
Chewing of food by teeth
churning of food by stomach
action of bile on fats
enzymes digesting food
What are the functions of the pancrease
1. produce bile
2. produce enzymes of the small intestine
3. produce insulin
1 and 2
2 and 3
1 and 3
1, 2 and 3
What happens to undigested food?
they are stored in the rectum as urea
they are stored in the rectum as faeces
they are stored in the rectum to be recycled
we release it as urine
What is this organ?
(a)
What is this organ?
(a)
This structure is found in the small intestine.
What is the function?
reduce surface area to volume ratio for faster absorption
reduce surface area to volume ratio for slower absorption
increase surface area to volume ratio for faster absorption
increase surface area to volume ratio for slower absorption
Which of the following is an adaptation of the small intestine?
1. inner layer is highly folded to increase absorption
2. short and wide to increase absopriton time
3. surrounded by many blood vessels
1 and 2
1 and 3
2 and 3
1, 2 and 3
What is the purpose of acid in the stomach?
1. to give enzymes the optimum pH
2. to kill bacteria
3. acids help to remove harmful chemicals
1 and 2
2 and 3
1 and 3
1, 2 and 3
