A curated set of real ZIMSEC past paper questions with answers and explanations. The full question bank is in the Danho app.
View sittings and topics→8 questions from this subject, marked as you go.
The study of body parts and their functions is called
What is the function of glucose in living organisms?
An example of a disaccharide is
Which cell changes shape to perform its function?
The diagram shows the structure of a plant cell.
The word that describes the observable characteristics of an organism is
Two parents are heterozygous for albinism.
Down's syndrome is caused by
Which statement is correct about discontinuous variation?
The diagram shows a safety symbol used in a science laboratory.
Which branch of Biology involves the study of cells?
Which carbohydrate is a polysaccharide?
In photosynthesis, water is used as a
The organelle that contributes to the osmotic properties of a plant cell is the
The approximate monohybrid ratio is
A new species arises from an existing species by
Productivity in farming can be improved by
Cytology is a branch of Biology which deals with
Ice protects aquatic life by
The diagram shows a plant cell.
In case of a fire in the laboratory, learners should
The diagrams show some warning symbols used in a laboratory.
The branch of Biology associated with brewing is
The diagram shows the structure of a monossacharide.
Which structure, in a plant cell is selectively permeable?
The diagram shows a specialised animal cell.
Which branch of Biology involves the study of hereditary traits?
An experiment that produces a poisonous gas should be conducted in a
Which triangle colour code represents a poisonous substance?
Which branch of Biology uses biological processes, organisms or systems to make products that improve lives of people?
Fig.1.1 shows a group of specialised blood cells. Identify these cells.
Which of the following is a way red blood cells are specialised for their function?
Which of the following is NOT a factor that influences the rate of photosynthesis?
Fig. 2.1 shows a section through a human tooth. Identify part C.
How is a cavity formed in a tooth?
Fig.3.1 shows two types of white blood cells, A and B. Identify cell A.
What is a function of blood platelets?
What is a science laboratory rule?
How does a sand bucket help control a fire in a laboratory?
Which cell organelle controls the activities of a cell?
Which cell organelle is the site of aerobic respiration in a cell?
Why does a sperm cell contain large amounts of mitochondria?
What are the two main components of a food chain?
Why is vegetative ground cover important in an ecosystem?
How is climate change a threat to biodiversity?
Which of the following is a measure of conserving wildlife?
Which of the following is true of an infectious disease but not a non-infectious disease?
In the lock-and-key hypothesis of enzyme activity, what is the name given to the temporary structure formed when a substrate fits into an enzyme's active site?
Why are enzymes efficient even in small quantities?
What is geotropism?
Why is a root positively geotropic?
Fig. 3.1 shows the structure of a human ovum. Identify part C.
Which of the following is a difference between an ovum and a palisade cell?
Fig. 6.1 shows an organism found in the soil. Identify this organism.
Fig. 1.1 shows a palisade cell. Name the process that takes place in the many oval bodies, marked with internal stripes, that lie in its cytoplasm.
Fig. 1.1 shows a palisade cell. Name the organelle, drawn as a small body with a folded line inside it, in which aerobic respiration takes place.
Which sentence correctly completes the definition: 'A cell is the basic structural and functional ___ of a living organism.'?
Which statement best describes cell specialisation?
Name the piece of laboratory equipment used to smother a small fire by cutting off its oxygen supply.
Name the piece of laboratory equipment that sprays foam, powder, carbon dioxide or water under pressure to put out a fire.
Fig. 1.1 shows three adjacent water molecules, with element X labelling the large shaded sphere of one molecule. Identify element X.
Fig. 1.1 shows three adjacent water molecules, with bond Y labelling the dashed line drawn between a hydrogen atom of one molecule and the oxygen atom of the next. Name bond Y.