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प्रश्न
Grapes shrink when immersed in a very strong sugar solution.” Explain.
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उत्तर
Very strong sugar solution is hypertonic to the grapes juice. Therefore, water from inside the grapes moves to outside hypertonic solution. It results shrinkage of the grapes.
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संबंधित प्रश्न
Three plants (a), (b) and (c) were placed in beakers containing coloured water. The water in each beaker was covered with a layer of oil. The leaves were removed from plant (b), while plant (c) was exposed to strong light.
(i) In which plant, (a), (b) or (c) would the water move up the fastest?
(ii) In which plant (a), (b) or (c), would the water move up slowly?
(iii) Why was the water covered with a layer of oil?
(iv) What is being investigated by this experiment?
Choose the correct answer:
The water is translocated upwards from the roots through _____________
The diagram below represents a layer of epidermal cells showing a fully grown root hair. Study the diagram and answer the questions that follow:
Mention one distinct difference between the parts labelled A and B.
Study the experimental setup in the figure and then answer the question that follow.
Explain the phenomenon mention in question 8.1 .
Draw a diagram of the root hair cell as it would appear when a concentrated solution of fertilizers is added near it.
Multiple Choice Question:
Process of endosmosis stops:
Part of the root that absorbs water from the soil is ______.
Epiphytic plants like orchids absorb water vapours from air with the help of ______ having special tissue called velamen.
Draw a neat and proportionate diagram of root hair and label mitochondria, nucleus and vacuole.
Name the following:
Unicellular outgrowths from the epidermis of roots.
