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Questions on Biology (Total: 60)
What is the sharks skeleton made up of and what does it do?
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Please can you help me on this questionFill in the missing word. In plants, __________ is used to strengthen the cell wall.
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Work out the potential difference if 11,500j of energy are transferred by 50c of charge.
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Name the charged particles that carry the current through a solution during electrolysis.
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What type of notice may require immediate closure of the whole premises or part of it?
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Which of the following is a serious chemical contaminant offood? Sugar. Insecticide. Vitamins. Salt. EJ Continue
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Water pollution comes under what category of problem associated with the manufacturing industry?
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What name is given to a factor which is preventing any increase in photosynthesis?
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Which food poisoning bacteria are commonly found on human skin?
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Which of the following is NOT a viablemethod of preventing contamination? Passing through a flame Boiling solutions Taping a lid on the Petri dish Keeping cultures at high temperatures
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In the diagram, the feature labelled C is only found in plant cells. What is it called?
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Fill in the blank with the correct word. Without enough fibre in our diet we can become __________. Choose matching definition a. Resistance b. Starch c. Malnourished d. Constipated
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In the diagram of the human digestive system, what organ is labelled 5?
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True or false? Dissolved substances cannot move by active transport.
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How many micrometres is an egg cell
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The diagram shows gas exchange in a specialised structure of the lungs. Which label shows the movement of carbon dioxide?
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Describe how to test a sample of food for protein, starch and sugar.Give the colours that would be seen if the food sample contained protein, starch and sugar.
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Which plant organ transports substances up and down the plant?
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What current will an ammeter register if 960C of charge flow through it in 2 minutes?
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Name one type of food that is made from glycerol and fatty acids.
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Besides a thermometer, what other piece of equipment could we use to measure changes in temperature?
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Name the liquid that can be used to test for carbon dioxide.
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Which part of the carpel does the pollen tube grow into to enable fertilisation to take place?
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85f equals to how many c?
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Please Help ! Look at the diagram. What type of cell is shown by number 5?
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Fill in the missing word. in plant cells, food is stored in the form of starch, fat or __________.
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Your restaurant's fish delivery has just arrived. What is a sign that you should reject the delivery? a) The fish has a mild fishy odor b) The fish is firm and moist c) The fish has an ammonia-like smell d) The fish is cold to the touch
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Aside from territory, food and water, what do horns on some male animals help them to compete for?
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Amylase is a polymer of smaller molecules. Name the type of smaller molecule.
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Blood sugar levels of the body need to be maintained, along with what other internal condition?
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A small flower with green petals is most likelyA. bee-pollinated. B. bird-pollinated. C. bat-pollinated. D. wind-pollinated.
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Which word best describes the nature of predator-prey dynamics in stable communities?
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Blood plasma aids in the transport of products of digestion. suggest how this is possible.
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Cells form tissues. tissues form __________. what word completes the sentence?
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What name is given to a factor which is preventing any increase in photosynthesis?
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Look at the incomplete equation below. What does Ek represent?
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In a reflex action, impulses from a receptor cell travel along what kind of neurone first?
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Diabetes and paralysis can both be treated with __________ cells. What word completes the sentence?a. stem b. pathogens c. lactic acid d. aids
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The products of digestion are used to build new carbohydrates, lipids, and what else?
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The advantage of using fermentation to make ethanol is that the resources needed are... what?Enter your answer
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Look at the picture below. What process occurs in plants which would cause water to form on the side of the glass?
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Here is a diagram of a reflex action.What happens at F? A B F E D
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How long does it take to digest chicken, red meat, and pork? a) Chicken: Approximately 2-3 hours b) Red meat: Approximately 3-4 hours c) Pork: Approximately 4-6 hours d) All of the above
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The gas exchange area of leaves is decreased by their internal air spaces.A. True B. False
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Fill in the missing word in this sentence: the function of ribosomes is to synthesise __________.
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Which DNA-containing component of other living cells is missing from bacteria?
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If a cell measured 0.04 mm and was magnified by 40, what would be the image size?
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If there is limited space, what will organisms mainly compete for?
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The small intestine produces amylase, protease and which other enzyme?
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What is the name given to the square frame used for sampling organisms in an environment?
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