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Frank solutions for Class 10 Biology chapter 4 - Absorption by Roots

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Frank Frank Class 10 Biology Part 2

Frank Class 10 Biology Part 2 - Shaalaa.com

Chapter 4: Absorption by Roots

Exercise

Chapter 4: Absorption by Roots Exercise Exercise solutions [Page 48]

Exercise | Q 1.01 | Page 48

Define the following:

Osmosis

Exercise | Q 1.02 | Page 48

Define the following:

Diffusion

Exercise | Q 1.03 | Page 48

Define the following:

Turgor pressure

Exercise | Q 1.04 | Page 48

Define the following:

Hypertonic solution

Exercise | Q 1.05 | Page 48

Define the following:

Plasmolysis

Exercise | Q 2 | Page 48
What is the difference between diffusion and osmosis?
Exercise | Q 3 | Page 48
What is the difference between endosmosis and exosmosis?
Exercise | Q 4 | Page 48
Define root pressure.
Exercise | Q 5 | Page 48
What is permeability?
Exercise | Q 6 | Page 48
Which part of the root absorbs maximum water and why?
Exercise | Q 7 | Page 48
What are the functions of root?
Exercise | Q 8.01 | Page 48

Distinguish between the following:

Filtration and diffusion    

Exercise | Q 8.02 | Page 48

Distinguish between the following:

Turgor pressure and osmotic pressure

Exercise | Q 8.03 | Page 48

Distinguish between the following:

Hypotonic and hypertonic solutions   

Exercise | Q 8.04 | Page 48

Distinguish between the following:

Osmosis and diffusion

Exercise | Q 8.05 | Page 48

Distinguish between the following:

Flaccid condition and turgid condition    

Exercise | Q 8.06 | Page 48

Distinguish between the following:

Plasmolysis and deplasmolysis

Exercise | Q 9 | Page 48
What is the utility of plasmolysis?
Exercise | Q 10 | Page 48
Give an account of the importance of turgor pressure in a herbaceous plant.
Exercise | Q 11 | Page 48
Mention two ways in which root hairs are suited for absorption of water from the soil?
Exercise | Q 12.01 | Page 48

How is root hair adapted for the absorption of water from the soil?

Exercise | Q 12.02 | Page 48

 What part is played by the cell wall?

Exercise | Q 12.03 | Page 48

What part is played by The cytoplasm in the uptake of water into the root hair?

Exercise | Q 12.04 | Page 48

What would happen to the root hair of a potted plant if the soil was watered with an extremely concentrated solution of sodium chloride?

Chapter 4: Absorption by Roots Exercise Exercise solutions [Pages 48 - 49]

Exercise | Q 1 | Page 49

The apparatus arranged alongside signifies an important process.
(i) Name the process.
(ii) Where does this process occur in plants?
(iii) What solution is placed inside the dialysis tubing?
(iv) What happens to the level of the solution in the capillary tube?

Exercise | Q 2.01 | Page 49

Name the following:

The pressure with which the molecules of a substance diffuse.

Exercise | Q 2.02 | Page 49

Name the following:

Two solutions having same concentrations.

Exercise | Q 2.03 | Page 49

Name the following:

The force developing in shoot responsible for most of the absorption of water.

Exercise | Q 2.04 | Page 49

Name the following:

The uptake of mineral ions against concentration gradient.

Exercise | Q 2.05 | Page 49

Name the following:

Tissue concerned with upward conduction of water.

Exercise | Q 2.06 | Page 49

Name the following:

Condition of cell in which the cell contents are shrunken.

Exercise | Q 2.07 | Page 49

Name the following:

The inward movement of solvent molecules through the plasma membrane of cell.

Exercise | Q 2.08 | Page 49

Name the following:

The process by which raisins swell up when placed in a beaker of water.

Exercise | Q 2.09 | Page 49

Name the following:

Movement of molecules from a region of high concentration to a region of low concentration.

Exercise | Q 3 | Page 48
Name the tissue concerned with upward conduction of water in plants.
Exercise | Q 4 | Page 49
Name the condition in which the cell contents are shrunken.
Exercise | Q 5 | Page 49
Explain briefly whydo not root hairs become flaccid when fertilisers are added to the moist soil around them?
Exercise | Q 6 | Page 49
Name the process by which molecules distribute themselves evenly within the space they occupy ______ (Fill in the blank).
Exercise | Q 7 | Page 49
Name the term for the inward movement of solvent molecules through the plasma membrane of a cell.
Exercise | Q 8 | Page 49

The diagram given below represents a plant cell after being placed in a strong sugar solution. Guidelines 1 to 5 indicate the following:
1. Strong sugar solution
2. Cell wall
3. Protoplasm
4. Large vacuole
5. Nucleus
Study the diagram and answer the questions that follow:
(i) What is the state of the cell shown in the diagram?
(ii) Name the structure which acts as a selectively permeable membrane.
(iii) If the cell had been placed in distilled water instead of strong sugar solution which feature would not have been present?
(iv) If the cell in the diagram possessed chloroplasts where would these be present?
(v) Name any one feature of this plant cell which is not present in animal cells.

Chapter 4: Absorption by Roots Exercise Exercise solutions [Page 50]

Exercise | Q 1.01 | Page 50

Explain why:

Raisins swell up in water.

Exercise | Q 1.02 | Page 50

Explain why:

We gargle with saline solution in case of throat infection.

Exercise | Q 1.03 | Page 50

Explain why:

Bacteria and fungi do not grow in pickles, jams, jellies and squashes.

Exercise | Q 1.04 | Page 50

Explain why:

The leaves of wilted lettuce, if kept in cold water, become crisp.

Exercise | Q 2 | Page 50
Define ascent of sap.
Exercise | Q 3 | Page 50
Why do plants die when salt is sprinkled over them?
Exercise | Q 4 | Page 50
Define root pressure. How would you demonstrate it experimentally?
Exercise | Q 5 | Page 50
Give at least three uses of water to green plants.
Exercise | Q 6 | Page 50
What will happen if a concentrated solution of a fertilizer is given to the potted plants?
Exercise | Q 7 | Page 50

The figure shows a diagrammatic representation of the movement of certain substances inside the stem of a certain plant. Write five sentences on whatever you can explain about the processes or the arrangement of structures indicated in the diagram.
Note: - Each sentence must include one or more of the following four words, and each word can be used several times. Xylem, phloem, roots, leaves.

Exercise | Q 8 | Page 50

The diagram given below represents the results of an experiment conducted on two freshly taken leafy shoots of a herbaceous plant. The lower ends of the shoots dip in ordinary water.
(i) What is the aim of the experiment?
(ii) Some parts of the stem in both the shoots have been removed. Name the conducting tissue in shoot (a) and in shoot (b) that has been removed.
(iii) What are the results of this experiment?

Exercise | Q 9 | Page 50

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?

Chapter 4: Absorption by Roots Exercise Exercise solutions [Page 51]

Exercise | Q 1.01 | Page 51

Choose the correct answer:

Osmosis involves diffusion of ___________

  • suspended particles from lower concentration to higher concentration.

  • suspended particles from higher concentration to lower concentration.

  • water from the more concentrated solution to the less concentrated solution.

  • water from the less concentrated solution to the more concentrated solution.

Exercise | Q 1.02 | Page 51

Choose the correct answer:

An example of a selective permeable membrane is __________

  • cell wall  

  • mitochondrial membrane

  • chloroplast membrane

  • plasmalemma

Exercise | Q 1.03 | Page 51

Choose the correct answer:

Plasmolysis will occur when the cell is placed in a __________

  • hypotonic solution 

  •  isotonic solution

  • hypertonic solution

  • acidic solution

Exercise | Q 1.04 | Page 51

Choose the correct answer:

Grapes when placed in a strong sugar solution shrink because of __________

  • diffusion         

  • plasmolysis

  • exosmosis      

  • endosmosis

Exercise | Q 1.05 | Page 51

Choose the correct answer:

Cell turgidity is caused by _______________

  • endosmosis      

  • exosmosis    

  • plasmolysis      

  • diffusion

Exercise | Q 1.06 | Page 51

Choose the correct answer:

If a marine plant is transferred to fresh water, it bursts due to ___________

  • exosmosis        

  • endosmosis

  • plasmolysis       

  • diffusion

Exercise | Q 1.07 | Page 51

Choose the correct answer:

Which one is semi-permeable?

  • Plasmalemma               

  • Cell wall

  • Endoplasmic reticulum  

  • Golgi body

Exercise | Q 1.08 | Page 51

Choose the correct answer:

Swelling of wooden doors during rains is caused by ___________

  • endosmosis    

  • imbibition

  • capillarity        

  • osmosis

Exercise | Q 1.09 | Page 51

Choose the correct answer:

Meaning of ascent of sap is ____________

  • absorption of water from soil.

  • alteration of water against gravitational force.

  • reaching of water upwards against gravitational force.

  • origin of cohesive force in water.

Exercise | Q 1.1 | Page 51

Choose the correct answer:

Process of ascent of sap in plants occurs ___________

  • by cortex    

  • by xylem  

  • by phloem

  • by cambium

Exercise | Q 1.11 | Page 51

Choose the correct answer:

Which tissue makes passage for ascent of sap?

  • Cortex            

  • Endodermis

  • Phloem           

  • Xylem

Exercise | Q 1.12 | Page 51

Choose the correct answer:

Absorption of water from soil takes place by __________

  • root cap region

  • root hairs

  • elongation zone

  • maturation zone

Exercise | Q 1.13 | Page 51

Choose the correct answer:

In ascent of sap water reaches upwards ____________

  • In the form of a solid column.

  • in the form of a fragile column.

  • to some places in the form of solid and to some places in liquid form.

  • none of the above.    

Exercise | Q 1.14 | Page 51

Choose the correct answer:

The water is translocated upwards from the roots through _____________

  • xylem         

  • phloem

  • pith            

  • endodermis    

Exercise | Q 1.15 | Page 51

Choose the correct answer:

Exudation or bleeding is associated with ___________

  • capillarity    

  • imbibition

  • hydrostatic pressure in the root

  • pulsation in the innermost layer of cortex

Exercise | Q 1.16 | Page 51

Choose the correct answer:

 Wilting of plants occurs when ____________

  • phloem is blocked.  

  • xylem is blocked.

  • a few old roots are removed.

  • both xylem and phloem are blocked.

Chapter 4: Absorption by Roots

Exercise

Frank Frank Class 10 Biology Part 2

Frank Class 10 Biology Part 2 - Shaalaa.com

Frank solutions for Class 10 Biology chapter 4 - Absorption by Roots

Frank solutions for Class 10 Biology chapter 4 (Absorption by Roots) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Frank Class 10 Biology Part 2 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Frank textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 10 Biology chapter 4 Absorption by Roots are Absorption by Roots, Imbibition, Diffusion and Osmosis, Osmotic Pressure, Turgidity and Flaccidity, Plasmolysis, Deplasmolysis, Absorption of Water and Minerals, Active Transport, Passive Transport, Importance of Root Hair, Rise of Water up to the Xylem, Plant Physiology.

Using Frank Class 10 solutions Absorption by Roots exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Frank Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 10 prefer Frank Textbook Solutions to score more in exam.

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