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15 Cards in this Set
- Front
- Back
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What will happen to a plant cell when placed in a solution with the same concentration gradient
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the cell will remain the same when placed in an isotonic solution(same concentration gradient)
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What will happen to a plant cell when placed in a solution that is less concentrated than the cell?
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The water is less concentrated than the solution of the red blood cells. Hence more water enters than leaves teh cell.As a result the cell will swell and may burst
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What will happen to the plant cell when placed in a solution that is less concentrated than inside the cell
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the solution eg. very salty solution(hypertonic) is more concentrated than the solution inside the red blodd cell. Hence more water leaves the cell than enters the cell.As a result the cell shrinks
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What are consumers?
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organisms which depend directly or indirectly on plants for their energy.
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What are scanvengers?
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animals which eat dead and decaying organisms, eg. earthworms,ants, termites and the johncrow.
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What are decomposers?
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They bring about decay of dead organisms and wastes and release minerals and other materials to be re-used by plants. Eg. decay bacteriaa and fungi
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What are parasites?
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plants or animals feeding on living organisms eg. tapeworm, ticks, flees, lice and dodder
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Plants that attach themselves to trees that are high above them are called what?
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epiphytes
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what shows carbon atoms which are passd from one organism to another and to their environment as they live, breathe,eat die and decay
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carbon cycle
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what does classification mean?
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to put into groups or classes. Organisms in a particular gorup resemble each other in certain ways
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Give 2 advantages of classifying organisms
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1. it is easier to to identify a certain organism
2.orgainsisms in a group have certain characteristics in common so we can describe them |
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What is invagination?
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when the nucleus in the cell appears to be smaller but it is not really getting smaller
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What are the materials used in photosynthesis?
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water and carbon-dioxide
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What is the product?
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energy, starch and oxygen
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What conditions are needed for photosynthesis?
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cholorophyll and sunlight
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