August 5, 2021 |

PPSC Lecturer Biology Test 80 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 80
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. 80

1 / 25

Potential energy of water means:

Chemical energy

Water potential

Kinetic energy

Mechanical energy

2 / 25

Facilitated diffusion requires:

Energy

Pressure

Saturation

Gradient

3 / 25

In the cytoplasm of the plant cell, what is the percentage of dry matter, excluding water ?

57 %

25 %

52 %

75 %

4 / 25

Organic matter synthesized in the leaves is transported to the stem and roots, for the purpose of:

None of the above

Usage

Upward transport

Both of the above

5 / 25

What is incorrect for diffusion?

It is an active transport

It is passive transport

No energy is utilized

It is along with the concentration gradient

6 / 25

What is correct for active transport ?

Energy is not utilised

It is along the concentration gradient

Takes place with the help of membrane proteins

None of the above

7 / 25

Plants absorb water from soil, through:

Stem hair

Cambial ring

Leaf hair

Root hair

8 / 25

What is the type of transportation in Xylem ?

Descending

Amphibolic

Unidirectional

Bidirectional

9 / 25

In active transport what will happen when all the protein transporters are being used.

Transport will stop

Transport rate reaches maximum

Transport rates becomes minimum

Transport rate is not affected

10 / 25

Which part of the plant cell contains 75% of water?

Mitochondria

Nucleolus

Cytoplasm

Nucleus

11 / 25

Facilitated Diffusion depends on:

Concentration

Pressure

Number of molecules

Molecular size

12 / 25

Which one is not the function of Gall bladder of frog ?

Emulsification

Destroys micro-organisms

Saponification

Removes acidity of chyme

13 / 25

Long distance transport of sap is done by:

Diffusion

Cytoplasmic streaming

Vascular tissues

Meristematic tissue

14 / 25

Carrier proteins in the membrane are sensitive to:

Competitors

All of the above

Inhibitors

Catalysts

15 / 25

What helps in the passage of hydrophilic solutes through the plasma membrane ?

Sugars in the membrane

Lipids in the membrane

Inhibitors in the membrane

Proteins in the membrane

16 / 25

Membrane proteins are not helpful in

Passive transport

Active transport

Facilitated diffusion

Simple diffusion

17 / 25

What is correct for carrier proteins ?

They only transport negative ions across the membrane

They transport only positive ions across the membranes

They transport only selected solutes across the membrane

They transport all types of ions across the membrane

18 / 25

Which characteristic is not of frog?

Skin of frog is moist, smooth, slimy and without exoskeleton

Presence of liver and renal portal system

Every fore limb with five fingers which are long

Heart is trilobed

19 / 25

What is helpful in active transport ?

Inhibitors

Lipid

ADP

Membrane proteins

20 / 25

Which plant has more than 92% water content ?

Maize

Water Melon

Trapa

Mustard

21 / 25

How are growth hormones transported in plants ?

Polar

Bipolar

Bidirectional

Amphibolic

22 / 25

Plasma membrane has one of the following as the main component:

Complex protein

Protein

Sugar

Lipid

23 / 25

What are porins made up of ? And what is their function?

Made up of sugar and checks the passage of micromolecules

Made up of proteins and allows the passage of large sized protein like molecules

Made up of lipids and passes solutes through the membrane

Made up of proteins and checks the passage of large sized protein like molecules

24 / 25

The water potential in the leaves of Tradescantia can be measured by:

yw = yp + ys + yg

yw = yp + yg

yw = ys + yp

yw = ys + yg

25 / 25

Which of the following solutes is transported rapidly across the plasma membrane ?

That which is insoluble in lipids

That which is soluble in proteins.

That which is soluble both in lipids and proteins

That which is soluble in lipids

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