WorksheetsIGCSE-Biology
Total questions: 39
Worksheet time: 20mins
What are the products when oil is digested?
amino acids and glycerol
fats and amino acids
fatty acids and glycerol
Why is calcium needed in the diet?
to make carbohydrates
to make teeth
to make enzymes
to make protein
The diagram shows a section through the human heart. Which two blood vessels are arteries?
1 and 2
2 and 3
3 and 4
4 and 1
The diagram shows a plant cell.
In which regions of the cell are the chloroplasts and nucleus found?
X-chloroplasts, X-nucleus
X-chloroplasts, Y-nucleus
Y-chloroplasts, X-nucleus
Y-chloroplasts, Y-nucleus
Which result with the biuret test would show protein is present?
blue
green
orange
purple
Which food is high in iron?
citrus fruit
milk
oily fish
red meat
The ribs are lowered as we breathe out. Which characteristic of living organisms does this illustrate?
growth
movement
respiration
sensitivity
Which tissue carries water up the stem of a plant?
epidermis
phloem
spongy mesophyll
xylem
Which structural feature is found in a plant cell but not in an animal cell?
cell membrane
cell wall
cytoplasm
nucleus
Which characteristic of living organisms involves chemical reactions that break down nutrient molecules to release energy?
excretion
nutrition
reproduction
respiration
The photograph shows a leaf as seen under a microscope. Which part of the leaf produces oxygen in the light?
A
B
C
D
Enzymes are biological catalysts.To which group of compounds do enzymes belong?
carbohydrates
fats
hormones
proteins
Which conditions would cause the highest rate of transpiration in a plant?
temperature- high, wind speed-high
temperature- high, wind speed-low
temperature- low, wind speed-high
temperature- low, wind speed-low
An enzyme from the alimentary canal has an optimum activity at an acidic pH. Which statement is correct?
The enzyme is an amylase and is found in the mouth
The enzyme is a protease and is found in the mouth.
The enzyme is an amylase and is found in the stomach.
The enzyme is a protease and is found in the stomach.
A blood cell is travelling through the hepatic vein. Which blood vessel will it travel through next?
hepatic artery
pulmonary artery
pulmonary vein
vena cava
A biuret test on a sample of food is positive. Which nutrient does this result show to be present?
fat
glucose
protein
vitamin C
What is meant by osmosis?
The diffusion of water molecules from a region of their higher concentration to a region of their lower concentration as a result of their random movement.
The diffusion of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane.
The diffusion of water molecules from a region of their lower concentration to a region of their higher concentration as a result of their random movement.
The diffusion of water molecules from a region of their lower concentration to a region of their higher concentration through a partially permeable membrane.
Some human white blood cells produce antibodies. What is another function of white blood cells?
enzyme secretion
hormone production
peristalsis
phagocytosis
The balanced equation for photosynthesis is shown.
What is X?
C6H12O6
C6H12O12
C12H6O6
C12H12O2
Why is breast-feeding of babies often recommended in preference to bottle-feeding?
Breast milk contains antibodies.
Breast milk contains protein.
Breast milk has no bacteria.
Breast milk is at body temperature.
Which statements are correct for all enzymes?
1 They are proteins.
2 They are unaffected by temperature.
3 They speed up chemical reactions.
4 They work best at a high pH.
1, 2 and 4
1 and 3 only
1, 3 and 4
2 and 4 only
Which process can be defined as the movement of small, water-soluble food molecules through the wall of the intestine into the blood?
absorption
assimilation
digestion
egestion
The diagrams show sections through a stem and a root.
Which indicate the positions of the xylem?
P and S
P and T
Q and S
Q and T
Where is bile stored?
gall bladder
liver
pancreas
stomach
What do plants need for their nutrition?
carbon dioxide, ions, organic compounds and light
carbon dioxide, ions, organic compounds and water
carbon dioxide, ions, light and water
carbon dioxide, organic compounds, light and water
Which diet would be most likely to prevent anemia and rickets?
high in calcium and vitamin C
high in calcium and vitamin D
high in iron and vitamin C
high in iron and vitamin D
Green plants need magnesium ions.Which plant process is limited when magnesium is deficient?
meiosis
photosynthesis
pollination
respiration
Vocabulary: __________ are land & water animals.
mammals
reptiles
birds
What does it mean to classify animals?
to capture it for scientific research
to put into a group with other animals that are similar
to release it into the wild
to study it in its natural environment
There are millions of species of what?
Thorax
Antenna
Arthropods
the middle of the three main sections of an insect's body.
Abdomen
Head
Thorax
One way of classifying plants is by their.........
size
colour
branches
stem
What is the term for cells grouped together to perform a specific function?
cell
tissue
organ
organ system
What is the term for the smallest unit of life?
cell
tissue
organ
organ system
Diffusion is the net movement of molecule from a region of ...1...to region of ...2....
1: lower concentration, 2: higher concentration
1: higher concentration, 2: lower concentration
1: lower concentration, 2: lower concentration
1: higher concentration, 2: higher concentration
In order to make proteins, plants need to absorb
Magnesium Ions
Nitrate Ions
Sucrose
Carbon Dioxide
