ppsc Biology MCQs

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.
At the End of the Test you can see your Test score and Rating.
If you found any incorrect answer in Quiz. Simply click on the quiz title and comment below on that MCQ. So that I can update the incorrect answer on time.

Please Click Below START Button to Take this Lecturer Biology Test Online.

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

Which of the following shows the least water potential ?

Leaf cells

Stem cells

Root cells

Cells of cortex

2 / 25

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

Cytoplasmic membrane

Tonoplast (vacuolar membrane)

Both of these

None of these

3 / 25

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

Liquid form

Gaseous form

None of these

All of these

4 / 25

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

Less

Very less

No water

5 / 25

Source means:

Where food is stored

Where food is accepted

Where food is synthesized

Place where food is digested

6 / 25

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

Dorsal surface of leaf

In leaf stalk

Leaf margin

Ventral surface of leaf

7 / 25

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

Surface tension

All the above

Capillary action

Cohesive force

8 / 25

Water absorption in roots takes place by which process ?

Passive

Active absorption

Active

Active and passive

9 / 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

10 / 25

Which cells in the roots behave as regulators?

Cortex

Pericycle

Epidermis

Endodermis

11 / 25

The mineral nutrients reach the leaves through which path ?

Transpiration path

Symplast pathway

Apoplast path

Phloem

12 / 25

Why can’t the mineral nutrients be absorbed passively ?

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

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

They can pass from the plasma membrane

None of the above

13 / 25

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

Mineral salts

Sugar

Protein

Lipids

14 / 25

The force present amongst water molecules is

Friction force

Gravitational force

Adhesive force

Cohesive force

15 / 25

Transpiration is reduced under which circumstances ?

In dry atmosphere

When it is airy/windy

In humid soil

In humid atmosphere

16 / 25

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

Crescent shaped

Elliptical

Triangular

Semicircular

17 / 25

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

Vacuolar path

All of the above

Symplastic pathway

Apoplastic pathway

18 / 25

The stomata closes under which circumstances ?

When the turgidity of guard cells decreases

When water collects in guard cells

When guard cells loose turgidity

When water enters guard cells

19 / 25

What is correct about ascent of sap?

Utilizes energy

None of these

Against the gravitational force

Both of these

20 / 25

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

Gets closed

Becomes broader

Becomes very narrow

Becomes narrow

21 / 25

Sink means:

Place where food is required

Place where food is stored

None of these

Place where food is synthesized and stored

22 / 25

Which organs take part in the process of transpiration ?

Stem and leaves

Only stem

Roots

Only leaves

23 / 25

In monocots, which cells are associated with the stomata:

Guard cells and accessory cells

Epidermal cells and accessory cells

Only guard cells

Epidermal cells and guard cells

24 / 25

Ascent of sap is the result of:

Diffusion

None of the above

Root pressure

Turgor pressure

25 / 25

Through which pathway is the least water transported ?

All of the above

Vacuolar path

Apoplastic pathway

Symplastic pathway

Your score is

The average score is 0%

PPSC Lecturer Biology Test 82 Online Preparation MCQs Read More »