Absorption By Roots Class 10 ICSE MCQ Quiz With Answers

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  • 1/13 Questions

    Which of the following is not found in a plant cell?

    • Cellulose cell wall
    • Mitochondrion
    • Chloroplast
    • Centriole
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About This Quiz

Are you ready for this "Absorption by roots class 10 ICSE MCQ quiz?" Roots absorb nourishment and water for living things, and to be able to grow; plants need water and nutrients from the soil. The embryo roots into its' mother's uterus to also be fed during the gestational time. Roots are mostly referred to in plant life, but if you take the quiz, you will find that they will draw you in to know more about their purpose.

Absorption By Roots Class 10 ICSE MCQ Quiz With Answers - Quiz

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  • 2. 
    The following diagram shows the appearance of onion epidermal cells that have been soaked in a 20% salt solution. Which solution should these cells be transferred to if you want to cells to return back to their turgid state? - ProProfs

    The following diagram shows the appearance of onion epidermal cells that have been soaked in a 20% salt solution. Which solution should these cells be transferred to if you want to cells to return back to their turgid state?

    • 5% salt solution

    • 20% salt solution

    • 25% salt solution

    • 35% salt solution

    Correct Answer
    A. 5% salt solution
    Explanation
    When the onion epidermal cells are soaked in a 20% salt solution, they lose water and become plasmolyzed, resulting in a shrunken appearance. To return the cells back to their turgid state, they need to be transferred to a solution with a lower salt concentration. The 5% salt solution is the best option because it has a lower salt concentration compared to the 20% salt solution. This lower concentration will cause water to move into the cells by osmosis, resulting in the cells becoming turgid again.

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  • 3. 

    What is a similarity between a red blood cell and a root hair cell?

    • Both function in the transport of oxygen.

    • They contain a nucleus.

    • Both cells have a high surface area to volume ratio.

    • Part of the cell forms a long and narrow protrusion.

    Correct Answer
    A. Both cells have a high surface area to volume ratio.
    Explanation
    Both red blood cells and root hair cells have a high surface area to volume ratio. This means that they have a large surface area relative to their volume, which is beneficial for their specific functions. In the case of red blood cells, the high surface area allows for efficient exchange of oxygen and carbon dioxide. In root hair cells, the high surface area increases the absorption of water and nutrients from the soil.

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  • 4. 
    Which of the following structures are present only in a plant cell? - ProProfs

    Which of the following structures are present only in a plant cell?

    • I, II, and III only

    • I, II, and IV only

    • I, III, and IV only

    • II, III, and IV only

    Correct Answer
    A. I, II, and IV only
    Explanation
    The structures that are present only in a plant cell are I, II, and IV. Structure I refers to the cell wall, which is a rigid layer surrounding the plant cell and providing support and protection. Structure II refers to the chloroplasts, which are responsible for photosynthesis in plant cells. Structure IV refers to the large central vacuole, which plays a role in maintaining cell turgidity and storing water and nutrients. These structures are unique to plant cells and are not found in animal cells.

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  • 5. 
    The diagram shows part of a xylem vessel.  What is the function of the spiral structure X? - ProProfs

    The diagram shows part of a xylem vessel.  What is the function of the spiral structure X?

    • Absorption

    • Photosynthesis

    • Support

    • Transport

    Correct Answer
    A. Transport
    Explanation
    The spiral structure X in the xylem vessel is responsible for the transport of water and nutrients from the roots to the rest of the plant. It helps in maintaining a continuous flow of fluids throughout the plant by providing support and preventing the collapse of the vessel. This spiral structure aids in the efficient movement of water and nutrients, ensuring that they reach all parts of the plant for various physiological processes.

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  • 6. 
    An experiment was set up as shown. After an hour, the liquid level in the thistle funnel increased. Which of the following shows the possible contents in the thistle funnel at the start of the experiment? - ProProfs

    An experiment was set up as shown. After an hour, the liquid level in the thistle funnel increased. Which of the following shows the possible contents in the thistle funnel at the start of the experiment?

    • Thistle funnel - 10% sucrose; beaker - 10% sucreose

    • Thistle funnel - distilled water; beaker - 5% sucrose

    • Thistle funnel - 5% sucrose; beaker - 10% sucrose

    • Thistle funnel - 5% sucrose; beaker - distilled water

    Correct Answer
    A. Thistle funnel - 5% sucrose; beaker - distilled water
    Explanation
    The liquid level in the thistle funnel increased after an hour, indicating that water moved from the beaker to the thistle funnel through osmosis. Osmosis is the movement of water from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane. Therefore, the thistle funnel must have had a lower solute concentration than the beaker, which means it contained distilled water. The beaker, on the other hand, must have had a higher solute concentration, so it contained a solution with 5% sucrose.

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  • 7. 

    Which of the following helps root hair cells to take up water?

    • Vacuole

    • Long protoplasmic extension

    • Thick cell wall

    • Contractile fibers

    Correct Answer
    A. Long protoplasmic extension
    Explanation
    Long protoplasmic extensions, also known as root hairs, help root hair cells to take up water. These extensions increase the surface area of the root hair cells, allowing for more efficient absorption of water and nutrients from the soil. The long protoplasmic extensions have thin cell walls, which further facilitate the movement of water into the root hair cells. The vacuole, thick cell wall, and contractile fibers do not directly aid in the uptake of water by root hair cells.

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  • 8. 

    1. Which of the following conditions are necessary for active transport to take place?

    • Presence of mitochondria and cell wall

    • Presence of mitochondria and concentration gradient

    • Presence of concentration gradient and cell wall

    • Presence of cell wall and cell membrane

    Correct Answer
    A. Presence of mitochondria and concentration gradient
    Explanation
    Active transport is a process that requires energy to move molecules or ions against their concentration gradient, from an area of lower concentration to an area of higher concentration. The presence of mitochondria is necessary because they are the powerhouse of the cell, producing ATP which provides the energy needed for active transport. The presence of a concentration gradient is also necessary as it provides the driving force for the movement of molecules or ions. Therefore, the correct answer is the presence of mitochondria and concentration gradient.

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  • 9. 

    Which of the following statements about plant and animal cells is not true?

    • Both can contain food reserves.

    • Both have partially permeable membranes.

    • Both depend on osmosis for water.

    • Both can expand and burst in water.

    Correct Answer
    A. Both can expand and burst in water.
    Explanation
    Both plant and animal cells have partially permeable membranes, meaning that they allow certain substances to pass through while restricting others. Both types of cells also depend on osmosis for water, as they regulate water balance through the movement of water across their membranes. Additionally, both plant and animal cells can contain food reserves, such as starch in plants and glycogen in animals. However, the statement that both plant and animal cells can expand and burst in water is not true. Plant cells have a rigid cell wall that provides support and prevents them from bursting, while animal cells do not have a cell wall but have a flexible cell membrane that allows them to withstand changes in volume without bursting.

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  • 10. 
    The diagrams show two cells as seen using a light microscope.  Which label is correct for both cells? - ProProfs

    The diagrams show two cells as seen using a light microscope.  Which label is correct for both cells?

    • Cell sap

    • Chloroplast

    • Cytoplasm

    • Membrane

    Correct Answer
    A. Cytoplasm
    Explanation
    Cytoplasm is present in both plant and animal cells and is the substance that fills the cell, holding the organelles in place and allowing various cellular processes to occur.

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  • 11. 
    The apparatus was set up as shown below.  The original level of the solution in the tubing was marked.  When it was examined some hours later, it was found that the level had risen.  It was also noted that the water in the beaker had turned red.  The process which caused the water in the beaker to turn red was - ProProfs

    The apparatus was set up as shown below.  The original level of the solution in the tubing was marked.  When it was examined some hours later, it was found that the level had risen.  It was also noted that the water in the beaker had turned red.  The process which caused the water in the beaker to turn red was

    • Plasmolysis

    • Diffusion

    • Osmosis

    • Absorption

    Correct Answer
    A. Diffusion
    Explanation
    The process that caused the water in the beaker to turn red is diffusion. Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. In this case, the red substance in the tubing diffused into the water in the beaker, causing it to turn red.

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  • 12. 
    A student placed five strips of potato (50 mm each) in dishes containing the following : 1. distilled water 2. 0.1 mol/dm3 sucrose solution 3. 0.3 mol/dm3 sucrose solution 4. 0.4 mol/dm3 sucrose solution 5. 0.5 mol/dm3 sucrose colution The lengths of the strips were measured at regular intervals and plotted on a graph.  Which line, A, B, C, or D, shows the results for the strip of potato in distilled water? - ProProfs

    A student placed five strips of potato (50 mm each) in dishes containing the following : 1. distilled water 2. 0.1 mol/dm3 sucrose solution 3. 0.3 mol/dm3 sucrose solution 4. 0.4 mol/dm3 sucrose solution 5. 0.5 mol/dm3 sucrose colution The lengths of the strips were measured at regular intervals and plotted on a graph.  Which line, A, B, C, or D, shows the results for the strip of potato in distilled water?

    • A

    • B

    • C

    • D

    Correct Answer
    A. A
    Explanation
    The correct answer is A because when a strip of potato is placed in distilled water, it will undergo osmosis. Osmosis is the movement of water molecules from an area of higher water concentration to an area of lower water concentration through a semi-permeable membrane. In this case, the potato strip acts as the semi-permeable membrane. As a result, water will enter the potato cells, causing them to swell and increase in length. This increase in length is reflected in the graph, which shows a gradual increase in the length of the potato strip over time.

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  • 13. 

    Which of the following statements is/are true of chloroplast?

    • It is where light energy is trapped and converted into chemical energy.

    • A double membrane organelle

    • Located in the nucleus.

    • A large amount of glucose is produced.

    Correct Answer(s)
    A. It is where light energy is trapped and converted into chemical energy.
    A. A double membrane organelle
    A. A large amount of glucose is produced.
    Explanation
    The chloroplast is an organelle found in plant cells, where light energy is trapped and converted into chemical energy through the process of photosynthesis. It contains chlorophyll, which is responsible for capturing the light energy. The chloroplast is indeed a double-membrane organelle, with an outer membrane and an inner membrane. However, it is not located in the nucleus but in the cytoplasm of the cell. Additionally, while glucose is produced during photosynthesis, it is not specified that a large amount of glucose is produced.

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  • Dec 12, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • May 15, 2013
    Quiz Created by
    TanWL
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