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Compared to plants grown on a complete nutrient medium, plants grown without nitrates are…
A deficiency in which type of mineral ion causes plants to have yellow leaves?
Glucose is a product of photosynthesis. Which of the following statements is not a use of glucose in plants.
A market gardener uses a paraffin heater in a greenhouse to improve the yield of plants. Which one of the following is not a good explanation for the effect of the heater?
If light intensity is the limiting factor in an investigation, which of the following would not cause a change in the rate of photosynthesis?
Which one of the following is most likely to occur if an animal cell is suspended in a very weak salt solution?
A human egg cell is large compared with a human sperm cell. The best explanation for this difference is
Which one of the following is the best description of the structure of a metabolically active cell?
Which one of the following is not a characteristic of all nuclei?
The role of the cell wall is
Which of the following structures is the location of respiration reactions inside animal cells?
Which of the following structures is a location where light energy is transferred into chemical energy?
Which two of the following structures are not a part of animal cells?
A drawing of a cell on a poster is 10cm and the scale shows it to have an actual size of 0.1mm in real life. Calculate the magnification.
Where is the genetic information in a bacterial cell?
What is 6cm in nanometers?
What is the name of the structures which line the small intestine to increase surface area?
Which structure in the gills of a fish increases the surface area?
What are the pores on the underside of leaves called?
Which sub-cellular structure carries out protein synthesis?
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Which of these methods ensure that an experiment has not been contaminated?
Which of the following descriptions best describes bacteria?
Diffusion: which of the following statements is correct?
Which of the following adaptations can increase the efficiency of diffusion in exchange surfaces?
Cell membrane: which of the following statements is correct?
Choose three ways in which grass energy is not transferred into the energy of cow muscle
Cell differentiation: which of the following statements is correct?
Which of the following statements about chromosomes is correct?
What is the name of the process by which bacteria divides to produce new cells?
Which is the correct order of processes involved in decomposition of the leaf?
In the structure of a leaf, the location of most gas exchange is…
In the a leaf, the location which does the most to prevent water loss by transpiration is…
Which adaptation allow leaves to maximize the amount of carbon dioxide that gets to their cells?
Which of the following types of microscopes typically provides higher resolution images?
When measuring the effect of increasing light on photosynthesis which is the dependent variable?
Mitosis is used by multicellular organisms to produce new cells for which purpose?
Which is the independent variable when measuring the effect of increasing light on photosynthesis?
In the structure of a leaf, the location of most photosynthesis is…
Which one of the following is the best description of substances used in photosynthesis?
Why shouldn’t you use a temperature above 30°C for growing microorganisms in a school lab?
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