Cell Structure and Functions Test

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Cell Structure and Functions Test - 22

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Weekly Quiz Competition

Question 1
1 / -0

The membrane bound organelles occur in

A
Blue green algae

B
Bacteria

C
Eukaryotic cell

D
All of the above

Solution

Eukaryotic cells are the cells that contain well developed, membrane-bounded nucleus and organelles such as mitochondria and the Golgi apparatus. Blue-green algae and bacteria lack membrane-bound organelles. Thus, the correct answer is option C.
Question 2
1 / -0

A cell can be declared dead, when it_______.

A
Loses its capacity to divide but otherwise physiologically active due to intact nucleus

B
Has lost its cytoplasm

C
Is metabolically dead

D
Both B and C

Solution

The various living components of a cell are cytoplasm and cell organelles like chloroplast, nucleus, endoplasmic reticulum, mitochondria etc. While metabolic by-products are considered to be non-living components.
Thus, by losing its cytoplasm, a cell is dead, as all its organelles will also be lost. Losing all organelles will result in no metabolic activity, causing the cell to automatically die.
Hence, the correct answer is option D.
Question 3
1 / -0

Cell is called as the structural and functional units of life because_________.

A
All organisms are formed of cells.

B
All cells are biochemical reaction house.

C
ATP is synthesized within cells.

D
All of the above.

Solution

Cells are called the structural and functional unit of life because all the living organisms are made up of cells and also all the functions taking place inside the body of organisms are performed by cells.
Cells provide specific conditions, for the occurrence of metabolic reactions.
These have specialized enzymes, which catalyze the biochemical reaction and regulates the functions of the body such as respiration (formation of ATP in the cell)
So, the correct answer is option D.
Question 4
1 / -0

The structural unit of a living being is

A
Atom

B
Molecule

C
Compound substance

D
Cell
Question 5
1 / -0

The cells with no membrane-bound organelles and nuclear membrane are

A
Plant cells

B
Animal cells

C
Prokaryotic cells

D
Eukaryotic cells

Solution

Prokaryotic cells are primitive cells. They do not possess many membrane bound organelles as mitochondria, lysosomes etc. They also do not haven well-defined membrane-bound nucleus. Hence the correct option is C.
Question 6
1 / -0

.......... is the basic unit of life.

A
Cell

B
Tissue

C
System

D
Organism

Solution

Cells are called as the basic unit of life because all the living organisms are made up of cells and also all the functions taking place inside the body of organisms are performed by cells. Cells provide the specific conditions, for the occurrence of the metabolic reactions. These have the specialized enzymes, which catalyze the biochemical reaction and regulates the functions of the body.
Question 7
1 / -0

A cell is a building unit of an organism. Select the correct statements.

A
In unicellular organisms, a single cell is capable of performing all the functions of life

B
In multicellular organisms, a single cell is capable of performing all the functions of life

C
Both A and B

D
None of these
Solution
- Cells are called the structural and functional unit of life because all the living organisms are made up of cells and perform all life process for survival. Unicellular organisms are made up of a single cell and single-cell only performs all the functions of life. Whereas multicellular organisms are made up of multiple cells and perform all the functions of life. Thus, the correct answer is option A.
Question 8
1 / -0

The component of the cell with hereditary material is:

A
Nucleus

B
Endoplasmic reticulum

C
Cytoplasm

D
Vacuole

Solution

The nucleus is the membrane-bound structure of the cell. It contains the majority of the cell's genetic material, i.e., DNA in the chromosomes.
So, the correct answer is option A.
Question 9
1 / -0

Tissue is formed by the combination of _____.

A
Organs

B
Organ systems

C
Cells

D
All of the above
Solution
- A group of cells that are similar in structure and work together to achieve a particular function forms a tissue.
- There are four basic tissue types present in animals defined by their morphology and function: epithelial tissue, connective tissue, muscle tissue, and nervous tissue.
So the correct answer is option C.
Question 10
1 / -0

When the cell is small, then____________________

A
Nucleus will be very small.

B
Nucleus will be very large.

C
It will be metabolically more active.

D
It will be metabolically less active.
Solution
- A small cell has less volume than a larger cell and so the enzymes, proteins are able to work faster due to surface area: volume ratio.
- This causes things to move around a lot quicker in smaller cells than in larger cells and so are metabolically more active.
- Thus the correct answer is option C.

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Cell Structure and Functions Test - 22

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Cell Structure and Functions Test - 22

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SHARING IS CARING

Question 1

Blue green algae

Bacteria

Eukaryotic cell

All of the above

Solution

Question 2

Loses its capacity to divide but otherwise physiologically active due to intact nucleus

Has lost its cytoplasm

Is metabolically dead

Both B and C

Solution

Question 3

All organisms are formed of cells.

All cells are biochemical reaction house.

ATP is synthesized within cells.

All of the above.

Solution

Question 4

Atom

Molecule

Compound substance

Cell

Question 5

Plant cells

Animal cells

Prokaryotic cells

Eukaryotic cells

Solution

Question 6

Cell

Tissue

System

Organism

Solution

Question 7

In unicellular organisms, a single cell is capable of performing all the functions of life

In multicellular organisms, a single cell is capable of performing all the functions of life

Both A and B

None of these

Solution

Question 8

Nucleus

Endoplasmic reticulum

Cytoplasm

Vacuole

Solution

Question 9

Organs

Organ systems

Cells

All of the above

Solution

Question 10

Nucleus will be very small.

Nucleus will be very large.

It will be metabolically more active.

It will be metabolically less active.

Solution

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