MCQ-Practice Test - Chapter 8 Cell: The Unit of Life

Instruction

Total Questions : 20

Total time :20 min

Total Marks : 20 x 3 = 60 Marks

Each Correct Question carries : 3 Marks

Each incorrect Question Carries : -1 Marks

Each Unattempted Question carry : 0 Marks

Be careful On Negative Markings

Alcohol consumption adversely affects the digestion of proteins within liver cells, which can eventually lead to liver damage. Given this information, which organelle in liver cells is most directly affected?

Rough ER

Golgi Apparatus

Lysosome

Nucleus

None

Which of the following is an important function attributed to lysosomes?

All of the above

Reabsorption in kidney and urinary bladder

Scavenging of worn out cells

Bone restoration

None

What is the correct sequence of organelles for the export of material out of a cell?

Rough ER → → Smooth ER → → Golgi apparatus

Golgi apparatus → → Rough ER → → Smooth ER

Rough ER → → Golgi apparatus → → Smooth ER

Smooth ER → → Rough ER → → Golgi apparatus

None

Out of the following organelles, which group is involved in manufacturing substances that are needed by the cell?

Ribosome, rough ER, smooth ER

Vacuole, rough ER, smooth ER

Rough ER, lysosome, vacuole

Lysosome, vacuole, ribosome

None

Organelle connected with glycosylation of proteins is

Ribosome

Chloroplast

Mitochondrion

None

Correct the given statements by replacing the underlined words and select the correct option.

(i) The viscous fluid present in the nucleus is called cytoplasm.

(ii) Vacuoles are rod shaped structures which oxidize food to provide energy.

(iii) Mitochondria contain green pigment chlorophyll and take part in photosynthesis.

(iv) Lysosomes take part in synthesis of protein.

(i) Protoplasm, (ii) Ribosomes, (iii) Centrosome, (iv) Golgi bodies

(i) Nucleoplasm, (ii) Mitochondria, (iii) Chloroplasts, (iv) Ribosomes

(i) Protoplasm, (ii) Plastids, (iii) Endoplasmic reticulum, (iv) Ribosomes

(i) Nucleoplasm, (ii) Lysosomes, (iii) Plastids, (iv) Centrosome

None

Find out the incorrect statements from the following.

Enzymes packed in lysosomes are made through rough chloroplast.

Rough ER and smooth ER produce proteins and lipids respectively.

Lysosome is related with the destruction of products which enters through plasma membrane.

Nucleic acids is present inside the nucleoplasm of eukaryotic nucleus

None

All students performed an experiment in which they put two different cells P and Q in pure water. Cell P swelled up and burst eventually while cell Q became tight and firm but did not burst.

Which of the following is the most appropriate inference?

Cell sap of cell Q is isotonic to pure water.

Cell P has been obtained from a plant.

Cell Q is a bacterium.

Cell sap of cell P is isotonic to the pure water.

None

Ribosomes are essential for protein synthesis, but they are present in mitochondria and plastids, the sites of respiration and photosynthesis. What is the role of ribosomes in these cell organelles?

Ribosomes transport RNA and DNA to cytoplasm

All the above are correct

Ribosomes transport ATP formed in respiration and photosynthesis to cytoplasm through endoplasmic reticulum

Sub units of some required proteins are synthesized in these organelles

None

10.

Identify the incorrect statement from the following:

Nucleoid is present inside the nucleoplasm of eukaryotic nucleus.

All of the above.

Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipid and protein respectively.

Mitochondria is related with the destruction of plasma membrane.

None

11.

The disulphide bonds acting as polypeptide staples are formed in

Lysosomes

Golgi complex

Cytosol

Endoplasmic reticulum

None

12.

If the analogy of a city is applied to a eukaryotic cell, then which of the following statements is correct?

Mitochondria as powerhouse and Golgi as a cargo sorting facility

Nucleus as a library and ribosome as a slaughter house

Mitochondria as powerhouse and nucleus as slaughter house

Nucleus as a police station and mitochondria as powerhouse

None

13.

Which of the following differentiates the cell membranes of eukaryotes and prokaryotes?

Gases and water pass through a prokaryotic cell membrane at greater rates than through those of eukaryotes.

Eukaryotic cell membranes contain more proteins and larger phospholipids.

Many functions that are compartmentalized within organelles of eukaryotes are associated with the cell membranes of prokaryotes.

Prokaryotic cell membranes are thinner and contain more proteins.

None

14.

What will happen if the organization of a cell is destroyed due to some physical or chemical influence?

Lysis of the whole cell will occur due to the hormones released by lysosomes.

Lysis of the whole cell will occur due to the enzymes released by lysosomes.

Plasmolysis of the whole cell will occur due to the hormones released by lysosomes.

Plasmolysis of the whole cell will occur due to the enzymes released by lysosomes.

None

15.

Liver cells have a particular organelle in adundance which contains enzymes that catalyse a series of reactions to detoxify both lipid soluble drugs and various harmful compounds produced by metabolism. Identify the cell organelle.

Rough endoplasmic reticulum

Golgi Apparatus

Smooth endoplasmic reticulum

Mitochondria

None

16.

Starch grain in potato tuber is located in

Ribosomes

Chloroplast

Mitochondria

Leucoplast

None

17.

Which of the following statement regarding mitochondrial membrane is not correct

The inner membrane is highly convoluted forming a series of infoldings.

The enzymes of the electron transfer chain are embedded in the outer membrane.

The outer membrane resembles a sieve.

The outer membrane is permeable to all kinds of molecules.

None

18.

Ribosomes are attached to the endoplasmic reticulum through glycoproteins known as Ribophorin I and II. Which subunit of ribosome get attached to the endoplasmic reticulum?

mRNA

tRNA

Large subunit

Small subunit

None

19.

The presence of DNA in mitochondria and chloroplast supports the hypothesis that

ATP is produced in chloroplast as well as mitochondria.

Chloroplast and mitochondria undergo meiosis and mitosis independent of nucleus.

Mitochondria and chloroplast both originated as independent free-living organisms.

Glycolysis occurs in both mitochondria and chloroplast.

None

20.

Select the one wrongly paired from the following.

Ribosome- Single membrane bound organelle

Chromatin reticulum- Genetic material DNA

Lysosome- 'Suicidal bag' of the cell

Mitochondrion- 'Power house' of the cell

None

Chapter 8 Cell: The Unit of Life

Chapter 9-Biomolecules

Chapter10-Cell Cycle And Cell Division

Instruction

Curriculum

Ncert – Class 11: Biology – Unit -3 -CELL: STRUCTURE AND FUNCTIONS

Chapter 8 Cell: The Unit of Life

Chapter 9-Biomolecules

Chapter10-Cell Cycle And Cell Division

MCQ-Practice Test – Chapter 8 Cell: The Unit of Life

Instruction