Font size
WorksheetsIGCSE 0654 B6 Animal Nutrition BIG
Total questions: 75
Worksheet time: 38mins
A balanced diet contains...
The necessary nutrients to meet your energy needs and keep you healthy
Lots of Protein and no fat
Carbohydrates, fats and proteins in equal amounts
Meat, vegetables and fruit
Substances absorbed from the alimentary canal may enter cells and become part of the cells.
State the storage carbohydrate made from glucose in liver cells
(a)
What is the optimum pH for stomach enzymes
pH 2
pH 7
pH 9
pH 12
What is the optimum pH for small intestine enzymes
pH 2
pH 7
pH 9
pH 12
Fish are a good source of Vitamin D.
State one effect of a diet that is deficient in vitamin D
(a)
Which food is a good source of Vitamin C?
boiled rice
canned fish
cooked meat
fresh fruit
The diet of a woman is very important during pregnancy.
State one source of iron in the diet
(a)
State the importance of iron in a pregnant woman's diet
(a)
State the name of one component of a pregnant woman's diet that is needed for the formation of bones in the fetus.
(a)
State the number of decayed teeth present in adult D
(a)
A healthy adult has 32 teeth.
State the umber of teeth lost by adult E
(a)
(a)
State the name of the process that is defined as the movement of digested food molecules into the cells of the body where they are used, becoming part of the cells
(a)
Water is a very important molecule for all living organisms.
State the name of the organ in humans where most water is absorbed
(a)
(a)
State the type of digestion that breaks down large pieces of food into smaller pieces without chemical change to the food molecules
(a)
(a)
(a)
State the name of the organ in the body that produces pepsin
(a)
It bites into food
It cuts food
It grinds food
It tears food
canine
incisor
molar
pre-molar
P and Q
P and R
Q and R
Q and S
T and U
U and V
V and W
W and T
Boiling food in water can reduce their nutrient content by destroying vitamins.
State the vitamin which is needed to prevent the disease scurvy.
(a)
(a)
(a)
Name the organ that stores bile
(a)
People who are obese are more likely to develop certain diseases than people who are the correct weight.
Name a disease that is linked to obesity.
(a)
Which organ produces bile?
A
B
C
D
E
Which part of the alimentary canal where most of the digested food is absorbed
Stomach
Small intestines / duodenum
Small intestines / ileum
Large intestines
Which 50g portion of food contains the most protein?
banana
cabbage
fish
potato
Why is iron needed by the body?
to form strong bones
to make haemoglobin
to provide energy
to repair cells
The small intestine have many microvilli.
What is the role of microvilli?
decrease the surface area
allow more digestion to occur
increase surface area
allow greater absorption to occur
allow more assimilation to occur
State the process that is defined as: the taking of substances eg. food and drink, into the body through the mouth
(a)
State the process that is defined as: the breakdown of large, insoluble molecules into small, soluble molecules
(a)
State the process which is defined as: the movement of small food molecules and ions through the wall of the intestine into the blood
(a)
State the process that is defined as: the movement of digested food molecules into the cells of the body where they are used, becoming part of the cells
(a)
State the process that is defined as: the passing out of food that has not been digested or absorbed, as faeces , through the anus.
(a)
Name Organ A
(a)
Name Organ C
(a)
Which actions can reduce your chances of tooth decay
Check all that apply
brush your hair twice daily
eat more sugary foods
brush your teeth twice daily
eat less sugary foods
What broke down the starch?
amylase
boiled amylase
heat
water
A
B
C
D
State the name of an enzyme that digests proteins
(a)
(a)
State the function of hydrochloric acid in the body
(a)
Galapagos iguanas feed on seaweed which contains starch and other carbohydrates.
State the name of the enzyme which breaks down starch.
(a)
Which of these is digested protease
amylase
maltase
trypsin
pepsin
X - maltase Y - amylase
X - maltase Y - lipase
X - starch Y - amylase
X - starch Y - lipase
Cells in the lining of the stomach secrete gastric juices, which contains hydrochloric acid and pepsin.
One role of this juice to to kill pathogens, what is the other?
(a)
Lipase is involved in the breakdown of fats.
What are the products of fat digestion?
Fatty acids
Amino acids
Glycogen
Glucose
Glycerol
Where is amylase secreted from?
B
C
D
E
F
What are the roles of bile?
Check all which apply
increase the surface area of lipids for lipase to work better
making juices more acidic for enzymes action
emulsifying fats
breaking down maltose
neutralising juices from the duodenum
Where is lipase secreted from?
B
C
D
E
F
Which of these would be high in carbohydrates?
Potatoes
Bread
Eggs
Mango
Butter
Which of these would be high in fats?
Olive oil
Nuts
Sausages
Cheese
Beans
Which of these could result from a deficiency of vitamin D.
Rickets
Scurvy
Anaemia
Obesity
Which disease is caused by severe protein malnutrition, causing swollen feet and enlarged liver and abdomen?
Marasmus
Kwashiorkor
Anaemia
Rickets
What is the result of a diet low in roughage (fibre)?
Constipation
Anaemia
Diarrhoea
Scurvy
Which of these nutrients are primarily used for energy?
Carbohydrates
Fats (Lipids)
Proteins
Minerals
Vitamins
This picture shows a process where large insoluble molecules are broken into small water-soluble ones. Name the process.
Digestion
Protease
C, H, O, N
Nutrition
Absorption can be defined as the movement of digested food molecules through ______________ to _________?
the wall of the small intestine into the blood
The cell wall into the cytoplasm
The stomach into the liver
Intestines into the vili
Which letters indicate organs where mechanical digestions occurs?
A
B
C
D
Which letters indicate organs that secrete digestive enzymes?
A
C
D
E
In which of the following structures does storage and assimilation occur?
Liver
Mouth
Pancreas
Rectum
Which equation shows how digestion happens in the human digestive system?
A
B
C
D
Which row in the table correctly shows the functions of hydrochloric acid in gastric juice?
A
B
C
D
In this villus structures P and Q absorb different nutrients. What do P and Q absorb?
P: Amino acids, Q: Glucose
P: Fatty acids, Q: Maltose
P: Glucose, Q: Fatty acids
P: Sucrose, Q: Amino acids
What is likely to have caused the decay in this tooth?
Acids released by bacteria
Digestion of the tooth by bacteria
Excess fat in the food eaten
Lack of fibre in the diet
The graph shows how pH affects the activity of salivary amylase, pancreatic lipase and stomach protease. What is the optimum pH for the protease?
2.0
3.5
7.0
8.0
The graph shows how pH affects the activity of salivary amylase, pancreatic lipase and stomach protease. At what pH are the activity of the amylase and protease equal?
4.0
4.8
7.5
They are never equal.
Which row show the correct combination of enzyme, its site of production and the products released?
A
B
C
D
Which of the following adaptations of the villi increase the absorption of food molecules?
Digestive enzymes produced
Large surface area
Microvilli
Good blood supply with lots of capilaries
Lots of 'good' bacteria
