NEW
Font size
WorksheetsIGCSE Biology Semester 2 Final Review
Total questions: 35
Worksheet time: 18mins
Without the process of transpiration, a plant would be unable to…
Move sucrose from the leaves to the roots.
Create new proteins for the plant.
Pull up new water and mineral ions from the roots to the leaves.
Grow towards the light.
The lower end of a plant stem is placed in water colored with red dye. After three hours, the stem is cut as shown in the diagram. Which labeled region is stained red?
A - Xylem
B - Cork
C - Phloem
D - Pith
Name the chamber of the heart that pumps blood to the lungs.
Left ventricle
Right ventricle
Left atrium
Right atrium
Which is the correct path way taken by blood flowing through the human circulatory system?
body > vena cava > left atrium > left ventricle > lungs
left ventricle > aorta > body > vena cava > right atrium
lungs > pulmonary artery > left atrium > left ventricle > aorta
right ventricle > aorta > lungs > body > right atrium
State which component of the blood carries oxygen.
plasma
red blood cells
white blood cells
platelets
The diagram shows part of the human circulatory system. Which part carries deoxygenated blood at high pressure?
A - Pulmonary Artery
B - Pulmonary Vein
C - Aorta
D - Left Ventricle
The diagram shows blood as seen under a microscope. Which identifies parts P, Q, R and S of the blood?
(P - plasma, Q - platelet, R - white blood cell, S - red blood cell)
(Q - plasma, P - platelet, S - white blood cell, R - red blood cell)
(R - plasma, S - platelet, Q - white blood cell, P - red blood cell)
(S - plasma, R - platelet, P - white blood cell, Q - red blood cell)
During anaerobic respiration (fermentation), yeast cells produce:
Alcohol
Lactic Acid
Carbon Dioxide and Alcohol
Lactic Acid and Carbon Dioxide
What are the features of a gas exchange surface?
Thick-walled, large surface area, many capillaries
Thick-walled, small surface area, few capillaries
Thin-walled, large surface area, many capillaries
Thin-walled, small surface area, few capillaries
Which of the following is a source of fuel for respiration?
Glucose
Lipids
Petrol
Carbon Dioxide
The diagram shows someone blowing up a balloon. How do the portions of gasses inside the balloon compare with the air outside the balloon?
Less Carbon Dioxide, More Oxygen, More Water Vapor
Less Carbon Dioxide, More Oxygen, Less Water Vapor
More Carbon Dioxide, Less Oxygen, More Water Vapor
More Carbon Dioxide, Less Oxygen, Less Water Vapor
The alveoli are our lung’s gas exchange surfaces. What letter from the diagram represents our alveoli?
A
B
C
D
Extra Credit: What happens when a child is vaccinated against a virus like measles?
Type of Immunity - Active, Production of Memory Cells? No
Type of Immunity - Active, Production of Memory Cells? Yes
Type of Immunity - Passive, Production of Memory Cells? No
Type of Immunity - Passive, Production of Memory Cells? Yes
The diagram shows a bacterial cell. How is this cell different from a typical animal cell?
It has a cell membrane
It has cytoplasm
It has no chloroplasts
It has no nucleus
The graph shows the effect of an antibiotic treatment on bacterial populations in the blood. What conclusion can be drawn from the graph?
Antibiotics are effective against viral and bacterial infections.
Antibiotics cause bacteria to reproduce.
Antibiotics take ten days to kill all bacteria.
Before the start of antibiotic treatment the bacterial population was rising.
When a bright light is shone into the eye, the diameter of the pupil decreases. What is this an example of?
accommodation
a reflex action
photosynthesis
voluntary response
The diagram shows a section through part of the eye. X is a circular muscle. What effect does it have when it contracts?
decreases the size of the pupil
increases the size of the pupil
reduces the pull on the lens, increasing its curvature, making it fatter.
pulls on the lens, decreasing its curvature, making it thinner.
The diagram shows some bones and muscles in a leg of a human. When muscle X contracts, joint Z bends. When muscle Y contracts, joint Z straightens. Muscles X and Y are said to be ___________________________ muscle pairs.
antagonistic
cooperative
connecting
friendly
Which type of cells do all sense organs contain?
ciliated
effector
mesophyll
receptor
Which of these added factors makes heroin an especially dangerous drug?
Heroin addicts no longer create natural pain killing brain chemicals.
Needle use increases their risk of contracting HIV and other blood born pathogens.
Withdrawl symptoms make it very difficult for dependent users to quit.
All of the answers.
Which occur when in a hot environment?
Arterioles in the Skin - Constrict, Sweat Glands - Active, Hair Erector Muscles - Relax
Arterioles in the Skin - Constrict, Sweat Glands - Not Active, Hair Erector Muscles - Contract
Arterioles in the Skin - Dilate, Sweat Glands - Active, Hair Erector Muscles - Relax
Arterioles in the Skin - Dilate, Sweat Glands - Active, Hair Erector Muscles - Contract
Which substances are found in the urine of a healthy person?
glucose and proteins
glucose and water
proteins and salts
salts and water
In which order does urea pass through structures in the body?
kidney → ureter → liver → urethra
kidney → urethra → liver → ureter
liver → kidney → ureter → urethra
liver → urethra → kidney → ureter
In which part of the body do drugs break down?
brain
heart
kidneys
liver
The graph shows the variation in a person’s body temperature over a period of time.
Which temperature change is likely to cause most sweating?
A
B
C
D
The nucleus in a body cell of a fly contains 12 chromosomes. How many chromosomes are there in the nucleus of a sperm from this fly?
6
3
12
24
A recessive allele:
causes a harmful feature
is never expressed in the phenotype
is not expressed when in a genotype with a dominant allele
produces the same phenotype when homozygous as when heterozygous
Which of the following is an advantage of asexual reproduction?
It results in an increase in variation with in a species.
It requires two parents to be successful.
It is quicker and requires fewer resources than sexual reproduction.
It keeps plants, like potatoes, from spreading out too much.
The diagram shows a maize (corn) cob with purple and yellow fruits. Purple (P) is dominant to yellow (p).
What are the genotypes of the parent maize plants?
PP x Pp
PP x pp
Pp x Pp
pp x Pp
3. Natural selection is:
The process by which organisms that are well adapted to their environment have a greater chance to breed and pass on their genes to the next generation than those that are less well adapted.
Taking a gene from one species and putting it into another species.
Choosing only the best organism from which to breed
none of the answers
Testes are located outside of the body because:
They cannot be too close to the prostate gland or they would interfere with it.
There simply is not any room inside the lower abdomen for them.
The testes need to be kept at a slightly lower temperature for sperm production and storage.
No one really knows for sure.
Structure where male gametes (sperm) are formed.
A - Bladder
B - Sperm Duct
C - Testes
D - Urethra
E - Penis
Tube which carries both semen and urine.
A - Bladder
B - Sperm Duct
C - Testes
D - Urethra
E - Penis
During ____________ an ovary releases an egg to the oviduct.
Fertilization
Menstration
Ovulation
Implantation
The diagram shows a flower. In which structure do seeds develop?
A - Style
B - Ovary
C - Anther
D - Stigma
