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PPSC Lecturer Biology Test 82 Online Preparation MCQs

Given below on this Website Online Free Taleem is free online MCQ’s test related to PPSC of Lecturer Biology. All the individuals who are going to appear in PPSC Lecturer of Biology written test can attempt these tests in order to prepare for it in best possible way. Our tests include all the important questions MCQs of Lecturer of PPSC Biology, all Past Papers of Lecturer of Biology PPSC that have extremely high amount of chances for been included in the actual exam which make our test undoubtedly the best source of preparation.

Note:-

There will be 25 multiple choice question in the test.
Answer of the questions will change randomly each time you start this test.
Practice this test at least 5 times if you want to secure High Marks.
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Test Instructions:-
Test Name	Lecturer Biology
Subject	Biology Test 82
Test Type	MCQs
Total Questions	25
Total Time	20 Minutes
Total Marks	100

You have 20 minutes to pass to the quiz.

PPPSC LECTURER BIOLOGY ONLINE PRACTICE TEST NO. 82

1 / 25

Food is stored in which form in the cells of the roots ?

Sugar

Mineral salts

Lipids

Protein

2 / 25

Through which pathway is the least water transported ?

Symplastic pathway

Apoplastic pathway

Vacuolar path

All of the above

3 / 25

Ascent of sap is the result of:

Diffusion

None of the above

Root pressure

Turgor pressure

4 / 25

Which organs take part in the process of transpiration ?

Stem and leaves

Only leaves

Only stem

Roots

5 / 25

Ascent of sap means:

Transport of food from the leaves for the roots

Transport of water and mineral salts absorbed by the root system towards the stem and leaves

Transport of water and salts towards the root system and stem

Transport of food prepared in leaves towards the buds

6 / 25

The stomata closes under which circumstances ?

When guard cells loose turgidity

When water collects in guard cells

When water enters guard cells

When the turgidity of guard cells decreases

7 / 25

Why can’t the mineral nutrients be absorbed passively ?

They can pass from the plasma membrane

They are in ionic form Plasma membrane is permeable and their concentration in roots is more

None of the above

They are in ionic form. Plasma membrane is semi permeable. Their concentration is less in roots

8 / 25

What is correct about ascent of sap?

None of these

Utilizes energy

Both of these

Against the gravitational force

9 / 25

Transpiration is reduced under which circumstances ?

In dry atmosphere

In humid atmosphere

When it is airy/windy

In humid soil

10 / 25

In dicots, where are the stomata located in maximum numbers ?

Ventral surface of leaf

In leaf stalk

Leaf margin

Dorsal surface of leaf

11 / 25

In which pathway, the water movement doesnot face much barriers:

All of the above

Apoplastic pathway

Symplastic pathway

Vacuolar path

12 / 25

Which cells in the roots behave as regulators?

Endodermis

Epidermis

Cortex

Pericycle

13 / 25

In monocots, which cells are associated with the stomata:

Guard cells and accessory cells

Epidermal cells and guard cells

Only guard cells

Epidermal cells and accessory cells

14 / 25

What is the shape of the guard cells when they become turgid ?

Elliptical

Semicircular

Triangular

Crescent shaped

15 / 25

In which form does the excess water absorbed by the roots is lost ?

None of these

Liquid form

Gaseous form

All of these

16 / 25

Water absorption in roots takes place by which process ?

Active

Active and passive

Passive

Active absorption

17 / 25

Sink means:

None of these

Place where food is required

Place where food is synthesized and stored

Place where food is stored

18 / 25

Water can cross which of the following membranes in the transmembrane transport ?

Both of these

Cytoplasmic membrane

Tonoplast (vacuolar membrane)

None of these

19 / 25

As the turgidity of the guard cells increases, the pore of the stomata:

Gets closed

Becomes broader

Becomes very narrow

Becomes narrow

20 / 25

The force present amongst water molecules is

Gravitational force

Adhesive force

Friction force

Cohesive force

21 / 25

The mineral nutrients reach the leaves through which path ?

Phloem

Symplast pathway

Apoplast path

Transpiration path

22 / 25

Which of the following is involved in the ascent of sap?

Surface tension

Capillary action

Cohesive force

All the above

23 / 25

Which of the following shows the least water potential ?

Root cells

Leaf cells

Cells of cortex

Stem cells

24 / 25

How much water is used by plants to maintain its life ?

Less

No water

Very less

25 / 25

Source means:

Where food is synthesized

Place where food is digested

Where food is stored

Where food is accepted

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