Loading...
Sec 4 Pure Biology TYS MCQ 2015 Set B
Quiz by HAO YI
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
The table shows comparisons between a red blood cell and a root hair cell.
Which comparisons are correct?
3 and 4 only
1 and 2 only
1, 3 and 4
1, 2 and 3
The diagram shows a cell as it appears in an electron micrograph.
In which part of a living cell is the oxygen concentration lowest?
A
B
C
D
The table shows comparisons between a red blood cell and a root hair cell.
Which comparisons are correct?
The diagram shows a cell as it appears in an electron micrograph.
In which part of a living cell is the oxygen concentration lowest?
The diagram show four identical plant cells.
The number of dots represent the concentration of a chemical and the arrows show the directions in which the chemical is moving.
Which diagrams represent the cells carrying out active transport?
Which conversion does not take place in the body of a human?
Which statements are correct for all enzymes?
1 Enzymes have an optimum pH.
2 Each enzyme can catalyse a number of different reactions.
3 Enzymes lower the activation energy needed for a reaction.
4 Enzymes catalyse only reactions that break down complex substances.
5 The shape of the active site is permanently altered by excessive heat.
6 Enzymes work fastest at 35 oC.
The graph shows the results of an experiment on enzyme activity.
Which label for the x-axis is correct?
The diagram shows some partially digested food moving along the ileum.
Which row is correct for muscle Y at region W?
The diagram shows part of the alimentary canal.
What does not happen at region Z?
The diagram shows part of a transverse section of a leaf.
Which cells contain chloroplasts?
The graph shows the effect of various factors on the rate of photosynthesis.
Which factor is the limiting factor at X?
Diagram 1 shows some components of a plant stem in longitudinal section.
Diagram 2 shows a photomicrograph of part of a plant stem in transverse section.
Which part of diagram 2 contains the components shown in diagram 1?
What is a result of the action of stomata?
Transpiration enables water to reach the top of trees.
Which of these statements correctly describes part of this process?
1 Water evaporates into the air spaces between the palisade cells.
2 Water molecules are pulled upwards in the xylem.
3 Water molecules are pulled upwards in the phloem.
4 Water vapour diffuses through the spongy mesophyll cells.
The diagram shows red blood cells in a capillary near the wall of an alveolus.
Which process explains how oxygen passes from the plasma into the red blood cells?
The diagram represents part of the human circulatory system, with some blood vessels identified by letters.
The table shows comparisons of the carbon dioxide concentration in the identified blood vessels.
Which comparisons of carbon dioxide concentration are correct?
The diagram shows a capillary and some tissue cells.
Which statement about the movement of substances is correct?
A person sits in a chair breathing normally.
Which row describes the state of the person's muscles when breathing out?
The graph shows the oxygen uptake by a person before and during a period of exercise lasting 20 minutes. The lines A, B, C and D show the possible oxygen uptake by the same person after the period of exercise.
Which line A, B, C and D, shows the oxygen uptake after the period of exercise?
Some changes in the concentrations of chemicals in contracting muscles are listed.
1 decrease in glucose
2 decrease in oxygen
3 increase in amino acid
4 increase in carbon dioxide
Which changes lead to lactic acid production?
What causes ultra-filtration in the kidney tubule?
Drinks that contain alcohol reduce the production of anti-diuretic hormone (ADH).
Which row shows the results of these drinks on the kidney tubule and the urine produced?
The diagram shows a section through the skin.
Which structure is likely to be increased in size in mammals living in an extremely cold climate?
Which homeostatic mechanism controls body temperature?
The diagram shows a section through the eye.
Which structure is mainly responsible for movement of the eyeball so that light falls on the fovea?
The diagram shows a section through the spinal cord and the neurones involved in a reflex action of a hand.
A student has been injured in an accident.
When a sharp point is stuck into one of his fingers, no reflex occurs. However, he can move his fingers when asked to do so.
Where has his nervous system been damaged?
Which statement is correct?
The diagrams show sections through two types of flower found on plants of the same species.
Which row gives the method by which these types of flower can be pollinated?
The diagram shows a human zygote being formed.
What describes the zygote?
The diagram shows a section through the male reproductive system.
What will be the effect if gland X is removed?
Which diagram represents a pair of homologous chromosomes?
The diagram shows the chromosomes in a dividing cell.
Which stage of cell division is shown?
Some events which occur during meiosis are listed.
1 crossing-over between chromatids of homologous chromosomes
2 halving of chromosome number
3 independent assortment of homologous chromosomes
4 pairing of homologous chromosomes
Which two events help to produce genetic variation?
The diagram shows a section of a DNA molecule.
Which parts represents a nucleotide?
What describes the genes in a transgenic organism?
In an investigation two mice are mated.
The F1 generation all have the same fur colour. The F1 generation are then crossed with each other to produce F2 generation where there is a 3 : 1 ratio for fur colour.
What states the genotypes for fur colour of the original two mice?
A species of a small mammalian herbivore lives in an isolated valley from which it cannot escape.
Which of these environmental changes could lead to genetic changes within the population?
The diagram shows six male and six female birds to the same species.
Which row describes the type of variation shown in these birds?
The statement 1 - 5 are about carbon sinks and carbon sources.
1 All oceans are carbon sinks.
2 Carbon sinks can become carbon sources.
3 Carbon sinks remove carbon dioxide permanently from the atmosphere.
4 Carbon sources absorb more carbon dioxide than they release.
5 Tropical rain forests are important carbon sinks.
Which statements are correct?
Bacteria are used in sewage treatment plants.
In which processes do bacteria play an active role?
