MCQs On Cell Structure and Function

NEET Biology MCQ Cell Structure and Function

What is a Cell?

A cell is a basic and fundamental unit of life. Therefore, if we were to break an organism apart to the cellular level, the smallest independent component - which would be found can be the cell.

A Cell is the basic and smallest life’s unit which is responsible for all the life’s processes.

Cells are the functional, structural, and biological units of all living beings. A cell can also be independently replicated. Thus, the cells are called the building blocks of life.

Each cell contains a fluid known as cytoplasm, enclosed by a membrane. And also presents in the cytoplasm are several biomolecules such as nucleic acids, proteins, and lipids. Furthermore, the cellular structures known as cell organelles are suspended in the cytoplasm.

Cell Structure

A cell structure is comprised of the individual components with specific functions important to carry out the processes of life. These components include cell membrane, cell wall, cytoplasm, nucleus, and also cell organelles.

There are many multiple choice questions on cell structure and function. Let us go through a few cell structures and function MCQs.

Importance of MCQs

In general, the Multiple Choice Questions (MCQs) are recognized as the most useful and widely applicable type of objective test elements. They could be used to measure the most important educational outcomes, such as understanding, knowledge, judgment, and problem solving.

By preparing these MCQs once after completing every topic, we can able to attempt the competitive exams like NEET easily and effectively.

Let us look at the MCQ on cell structure and function, including the cell structure and function MCQ with answers.

1. In the Given List, Which is the Simplest Amino Acid?

  1. Alanine

  2. Glycine

  3. Tyrosine

  4. Asparagine

Answer: (b)

Explanation

Glycine is the simplest amino acid. It contains a single hydrogen atom as its side chain. It is also a proteinogenic amino acid.


2. Animal Cells are Interconnected by _______

  1. Desmosomes

  2. Cell wall

  3. Plasmodesmata

  4. Plasma membrane

Answer: (a)

Explanation

Desmosomes are the structure by which adjacent cells are attached and formed from the protein plagues in cell membranes linked by the filaments.


3. Polythene Chromosomes are Found because of _____?

  1. Endomixes

  2. Mitosis

  3. Meiosis

  4. Endomitosis

Answer: (d)

Explanation

Endomitosis is the replication or duplication of the chromosome in the absence of nuclear division or cell, resulting in numerous copies within each cell, which occurs in the Drosophila’s salivary glands.


4. The rRNA is Synthesized by _________

  1. Golgi body

  2. Nucleus

  3. Nucleolus

  4. Cytoplasm

Answer: (c)

Explanation

A nucleolus is the small dense spherical structure in the cell nucleus. So, the r-RNA is synthesized by Nucleolus.


5. Which of the Following is Known as Mitoplast?

  1. Mitochondria without outer membrane

  2. Another name for mitochondria

  3. Mitochondria without membranes

  4. Mitochondria without inner membrane

Answer: (a)

Explanation

Mitoplast is a mitochondria where the outer membrane stripped in it has been removed, by keeping the inner membrane unchanged or intact.


6. The Lipid Drugs’ Detoxification Including the Other Harmful Compounds of Various Types in the ER is Carried Out by ______?

  1. Cytochrome F

  2. Cytochrome bf

  3. Cytochrome P450

  4. Cytochrome D

Answer: (c)

Explanation

Cytochrome P450 enzymes function to metabolize the potentially toxic compounds. There exist 57 human genes coding for different cytochrome p450.


7. Sodium and Potassium Pumps are Examples of __________

  1. Plasmolysis

  2. Active transport

  3. Passive transport

  4. Osmosis

Answer: (b)

Explanation

Active transport is the movement of either ions or molecules across a cell membrane into a higher concentration region assisted by the enzymes and requiring energy. Sodium and potassium pumps are good examples of Active transport.


8. The Histone Octamer Contains __________?

  1. 5 types of histones

  2. 6 types of histones

  3. 8 types of histones

  4. 8 histones of four different types

Answer: (d)

Explanation

Histone octamer is an 8 protein complex that is found at the centre of the core particles of the nucleosome. It contains 2 copies of 4 core histone proteins.


9. Centriole Takes Part in the Formation of ________?

  1. Nucleus

  2. Spindle

  3. Cell plate

  4. To start cell division

Answer: (b)

Explanation

Centrioles are a cylindrical structure that is composed of tubulin. These take part in the formation of a Spindle.


10. Identify the Longest Cell in the Human Body From the List Given Below.

  1. Nerve cells

  2. Gland cells

  3. Bone cells

  4. Muscle cells

Answer: (a)


11. Which of the Below Option is/are Examples of an Organ that Contain a Smooth Muscle?

  1. Uterus only

  2. Iris of eye

  3. Bronchi only

  4. All of the above

Answer: (d)


12. The Major difference between the Human Cheek Cells and Onion Peel Cells is ______?

  1. Presence of mitochondria in onion peel

  2. Absence of plasma membrane in cheek cells cells

  3. Cell wall presence in onion peel cells

  4. Absence of endoplasmic reticulum in cheek cells

Answer: (c)


13. An Organelle that Mainly Serves as a Packaging Area for Molecules that are Distributed Across the Cell and are Called ____?

  1. Golgi apparatus

  2. Mitochondria

  3. Plastids

  4. Vacuole

Answer: (a)


14. The Cell Theory is not Applicable to-

  1. Fungi

  2. Microbes

  3. Algae

  4. Virus

Answer: (d)


15. On the Below-Given List, which One Includes the Blood Tissue?

  1. Muscle tissue

  2. Connective tissue

  3. Epithelial tissue

  4. Nervous tissue

Answer: (b)

FAQs (Frequently Asked Questions)

1. Identify the Structure of the Plant Cell, which is Non-Living From the Given List.

  1. Nucleus

  2. Mitochondrion

  3. Cytoplasm

  4. Cell wall

Answer: (d)

2. Which of the Given Below Cell Organelle does not Contain DNA?

  1. Lysosomes

  2. Mitochondria

  3. Nucleus

  4. Chloroplast

Answer: (a)

3. The Substance like a Jelly Present Inside the Plasma Membrane in Which all the Cell Organelles are Floating is referred to as _____?

  1. Cytoplasm

  2. Tonoplasm

  3. Karyoplasm

  4. Cell sap

Answer: (a)

4. Digestive Enzymes are Present in _________?

  1. Ribosome

  2. Lysosomes

  3. Liposomes

  4. Mitochondria

Answer: (b)

5. In the below Given List, the Glycocalyx is Associated With __________?

  1. Ribosomes

  2. Nucleus

  3. Plasma membrane

  4. Cell wall

Answer: (c)