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Selina solutions for Class 8 Biology chapter 1 - Transportation in Plants

Selina Concise Biology for Class 8 (2018-19 Session)

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Selina Selina Concise Biology Class 8 (2018-19 Session)

Selina Concise Biology for Class 8 (2018-19 Session)

Chapter 1: Transportation in Plants

Chapter 1: Transportation in Plants solutions [Page 0]

Put a tick mark (✓) against the correct alternative in the following statement:

Diffusion occurs when molecules move:

  1. from lower concentration to higher concentration.
  2. from higher concentration to lower concentration through a membrane.
  3. from higher concentration to lower concentration.
  4. when energy is used.

Put a tick mark (✓) against the correct alternative in the following statement:

Ascent of sap in plants takes place through:

  1. Cortex
  2. Epidermis
  3. Xylem
  4. Phloem

Put a tick mark (✓) against the correct alternative in the following statement:

If the xylem vessels of a plant are plugged:

  1. The leaves will turn yellow
  2. No food will be made
  3. The plant will wilt (shrivel)
  4. The plant will continue to grow

Put a tick mark (✓) against the correct alternative in the following statement:

Force responsible for the ascent of sap is:

  1. Capillary force
  2. Root pressure
  3. Transpirational pull
  4. All the three

Put a tick mark (✓) against the correct alternative in the following statement:

Raisins swell when put in:

  1. Rain water
  2. Tap water
  3. Mustard oil
  4. Saturated sugar solution

Put a tick mark (✓) against the correct alternative in the following statement:

The root-hairs are suited for absorbing water from the soil because:

  1. They have a large surface area
  2. They have a semi-permeable membrane
  3. They contain a solution of higher concentration than the surrounding water.
  4. All the three.

Put a tick mark (✓) against the correct alternative in the following statement:

Transpiration is defined as:

  1. the rise of water up to the stem of a plant.
  2. the elimination of water with dissolved water products.
  3. the loss of water as water vapour from the aerial parts of a plant.
  4. the loss of water as water vapour from the roots as well as the leaves of the plant.

Put a tick mark (✓) against the correct alternative in the following statement:

Which one of the following favours the fastest transpiration rate ?

  1. A cool, humid, windy day,
  2. A hot, humid, windy day,
  3. A hot, humid, still day,
  4. A hot, dry, windy day.

Chapter 1: Transportation in Plants solutions [Page 0]

An experiment was set up as shown in the figure below. After some time, the Water level in test tube A fell down but not in test tube B

Why was there a fall in the water level of test tube A and not in that of test-tube B ?

How are roots useful to the plants? Give any two points.

What do xylem vessels carry?

Name the plant tissue which helps in carrying the food to different parts.
                                                               

Define the term semi-permeable membrane.

Define the term:

osmosis

Under what conditions do plant transpire more quickly?

Under what conditions do plant transpire most slowly?

Given here is an enlarged diagram of a part of the root. Draw arrows on the diagram to show the movement of water passing through different parts.

Why is the structure of the root hair is quite suitable for absorbing water from the soil ?

Briefly explain, how transpiration helps in upward conduction of water in plants? 

How does temperature, light intensity and wind affect transpiration?

The set up shown alongside was kept in sunlight for an hour. It was observed that drops of water appeared on the inside of the polyethylene bag.

(a) Name the process which is being demonstrated.
(b) Why was the pot and its soil left uncovered by the polythene bag ?
(c) Why was the pot left in the sunlight?
(d) Suppose the pot in this experiment was placed inside a dark room instead of placing it in sunlight for some time. What difference will be noticed?

State whether the following statement is true or false. Rewrite the false statement correctly.

 Water absorption mainly occurs through the root-hair.

State whether the following statement is true or false. Rewrite the false statement correctly.

 Water enters the root-hair by osmosis.

State whether the following statement is true or false. Rewrite the false statement correctly.

Water absorbed by the roots reaches the leaves and is used in producing food for the entire plant.

State whether the following statement is true or false. Rewrite the false statement correctly.

A semi-permeable membrane allows larger molecules to pass through, but prevents the smaller ones.

State whether the following statement is true or false. Rewrite the false statement correctly.

Transpiration is the loss of water from the roots of the plant.

State whether the following statement is true or false. Rewrite the false statement correctly.

Transpiration cools the plant when it is hot outside.

State whether the following statement is true or false. Rewrite the false statement correctly.

During transpiration, the leaves lose more water from their upper surface.

Fill in the blank with suitable term given below: (Fast, Leaves, Stomata, Conducting, Ascent, Humid)

Transportation in plants is carried out by a __________ system.

Fill in the blank with suitable term given below: (Fast, Leaves, Stomata, Conducting, Ascent, Humid)

The upward movement of sap that contains water and minerals is called _______ of sap.

Fill in the blank with suitable term given below: (Fast, Leaves, Stomata, Conducting, Ascent, Humid)

Transpiration is more when the wind is blowing _____.

Fill in the blank with suitable term given below: (Fast, Leaves, Stomata, Conducting, Ascent, Humid)

Most water gets evaporated from the plant from its __________.

Fill in the blank with suitable term given below: (Fast, Leaves, Stomata, Conducting, Ascent, Humid)

Transpiration is reduced if the air is __________.

Fill in the blank with suitable term given below: (Fast, Leaves, Stomata, Conducting, Ascent, Humid)

The leaves have more__________ on their lower surface.

Chapter 1: Transportation in Plants solutions [Page 0]

Draw a magnified view of the root-hair, and describe, how it helps in the absorption of water from the soil.

How does transpiration help the roots absorb water and minerals from the soil?

Define the three processes by which plants absorb water and minerals from the soil.

How water absorbed by the roots is important for the plants?

Name the factors which affect the rate of transpiration? State their role in each case.

Mention the two ways in which transpiration helps the plants.

Describe an experiment to show that the plant loses water through its leaves.

Name any three minerals whose deficiency causes diseases in plants. Give the symptoms of each deficiency.

List out the differences between xylem and phloem.

Chapter 1: Transportation in Plants solutions [Page 0]

Movement of water in the plant body takes place through

  • xylem

  • vascular tissues

  • phloem

  • stomata

Prepared food material is carried through

  • xylem

  • vascular tissues

  • phloem

  • stomata

Multiple choice question. Tick (✓) the correct choice:

Water from the soil enters the root xylem by the process
(a) diffusion
(b) evaporation
(c) osmosis
(d) transpiration

Multiple choice question. Tick (✓) the correct choice:

The loss of water through the stomata of leaves is called
(a) transpiration
(b) wilting
(c) evaporation
(d) osmosis

Chapter 1: Transportation in Plants solutions [Page 0]

Fill in the blank:

Water passes into a root by the process called ________.

Fill in the blank:

Osmosis occurs through a _________ membrane.

Fill in the blanks:

Movement of water occurs from a _______ solution into a _________ solution in osmosis. 

Fill in the blank:

Water is lost from the leaves by__________.

Fill in the blank:

Upward movement of water takes place through ________.

Chapter 1: Transportation in Plants solutions [Page 0]

is the following statement  true (T) or false (F)? Mark T or F.

In Spirogyra, transport of materials takes place through osmosis.

is the following statement  true (T) or false (F)? Mark T or F

Xylem and phloem are vascular tissues.

is the following statement  true (T) or false (F)? Mark T or F

‘Girdling experiment’ demonstrates food synthesis in plants.

Chapter 1: Transportation in Plants solutions [Page 0]

Define the term Osmosis

 Define the termTranspiration

Define the term Transpiration stream

Define the term Diffusion

Chapter 1: Transportation in Plants solutions [Page 0]

Describe the function of Xylem.

Describe the function of Phloem.

Chapter 1: Transportation in Plants solutions [Page 0]

Name the two aspects of transport in higher plants.

How does transport of materials take place in unicellular plants?

What are root hair? Mention the function performed by the root hair.

Name the process by which water loss takes place through the leaves.

Mention the significance of transpiration.

How does movement and absorption of water take place through the roots?

Differentiate between osmosis and transpiration.

Find the odd one out and give reason.
Root hair, xylem, root, phloem

How does transpiration help in the uptake of water from the soil?

Crossword Puzzle
ACROSS
1. Special tubes through which food material is carried inside the plants body.
3. Channel through which movement of water and minerals occurs.
4. Red coloured fluid inside blood vessels.
5. Loss of water in vapour from the leaves.
9. Four chambered organ located in the chest cavity.
10. Blood vessels which bring blood into the heart. DOWN
2. Red coloured pigment which is a carrier of oxygen.
6. Blood vessels which carry blood from the heart.
7. Blood cells which help in clotting of blood.
8. Process by which water passes into the root hair.

Why is there a need for a transport system in plants and animals?

What does vascular tissue or conducting tissue comprise of?

What is sap?

Give two major functions of roots.

With the help of a diagram, explain osmosis in plant cells.

Which experiment demonstrates the transport of food material in plants by phloem?

Why do raisins (dried grapes) swell when kept soaked in water?

Chapter 1: Transportation in Plants

Selina Selina Concise Biology Class 8 (2018-19 Session)

Selina Concise Biology for Class 8 (2018-19 Session)

Selina solutions for Class 8 Biology chapter 1 - Transportation in Plants

Selina solutions for Class 8 Biology chapter 1 (Transportation in Plants) 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 Selina Concise Biology for Class 8 (2018-19 Session) solutions in a manner that help students grasp basic concepts better and faster.

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

Concepts covered in Class 8 Biology chapter 1 Transportation in Plants are Concept of Diffusion, Semipermeable Membrane, Concept of Root Pressure, Concept of Active Transport, Concept of Transpiration, Importance and Factors Affecting Transpiration, Structure and Function of Xylem and Phloem in Detail, Importance of Minerals:Macro and Micro Nutrients, Lack of These Essential Nutrients, Concept for Osmosis, Transport of Food and Minerals in Plants Questions.

Using Selina Class 8 solutions Transportation in Plants 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 Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 8 prefer Selina Textbook Solutions to score more in exam.

Get the free view of chapter 1 Transportation in Plants Class 8 extra questions for Biology and can use shaalaa.com to keep it handy for your exam preparation

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