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Fundamental Unit of Life (Part I)

Description: Fundamental unit of life (Part I) Cells and Tissues
Number of Questions: 35
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Tags: Fundamental unit of life (Part I) Cells and Tissues
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The most abundant component in cytoplasm is _______.

  1. fat

  2. water

  3. protein

  4. carbohydrates


Correct Option: B

Main components of plasma membrane are ________ .

  1. proteins only

  2. lipids only

  3. both proteins and lipids

  4. carbohydrates


Correct Option: C

Who discovered the nucleus of a cell?

  1. Robert Hook

  2. Robert Brown

  3. Virchow

  4. Purkinge


Correct Option: B

Which of the following statements is not true about plasma membrane?

  1. It is the outermost covering of the cell that separates the contents of the cell from its external environment.

  2. It provides shape to the cell.

  3. It is a selectivity permeable membrane.

  4. It is made up of lipids and proteins only.


Correct Option: D

Which of the following processes is responsible for the gaseous exchange between the cell and its outer environment?

  1. Diffusion

  2. Osmosis

  3. Endocytosis

  4. Plasmolysis


Correct Option: A

The process of engulfing food from environment by an amoeba is known as _______ .

  1. diffusion

  2. osmosis

  3. endocytosis

  4. plasmolysis


Correct Option: C

Which of the following scientists/biologists is not responsible for the modification of the cell theory?

  1. Schwan

  2. Schleiden

  3. Virchow

  4. Purkinge


Correct Option: D

Which of the following organisms is not unicellular?

  1. Amoeba

  2. Paramecium

  3. Hydra

  4. Bacteria


Correct Option: C

Which of the following statements is not true according to the cell theory?

  1. All the living organisms are made up of cells.

  2. Cell is the basic unit of life.

  3. Cells contain components called organellae.

  4. Cells arise from pre-existing cells.


Correct Option: C

Which of the following processes is responsible for the movement of water from a region of higher concentration to a region of lower concentration through a semi-permeable membrane?

  1. Diffusion

  2. Osmosis

  3. Endocytosis

  4. Plasmolysis


Correct Option: B

Who coined the term cell?

  1. Robert Hooke

  2. Robert Brown

  3. Leewen Hook

  4. Virchaw


Correct Option: A

Which of the following processes is used by plant cells to gain water?

  1. Osmosis

  2. Diffusion

  3. Endocytosis

  4. Plasmolysis


Correct Option: A

Which of the following components is basic in the cell wall?

  1. Protein

  2. Lipid

  3. Cellulose

  4. Lignin


Correct Option: C

Which of the following statements is not true for nucleus?

  1. It is covered by a double membrane structure.

  2. It has chloroplasts.

  3. It contains DNA.

  4. It plays a key role in cell reproduction.


Correct Option: B

What is the undefined region of the nucleus in prokaryotes known as?

  1. Nucleoid

  2. Nuclear wall

  3. DNA

  4. RNA


Correct Option: A

Which of the following organelles is known as the power house of a cell?

  1. Mitochondria

  2. Ribosomes

  3. Cytoplasm

  4. Golgi bodies


Correct Option: A

Which of the following is the site of protein synthesis in a cell?

  1. Nucleus

  2. Ribosomes

  3. Golgi bodies

  4. Endoplasmic reticulum


Correct Option: B

Which of the following organelles are known as the suicide bags of the cell?

  1. Mitochondria

  2. Ribosomes

  3. Lysosomes

  4. Golgi bodies


Correct Option: C

_______ is the energy currency of a cell.

  1. Mitochondria

  2. ATP

  3. ADP

  4. DNA


Correct Option: B

_______ are the functional segments of DNA.

  1. Genes

  2. Chromosomes

  3. ATP

  4. Chromatids


Correct Option: A

Which of the following plastids is responsible for the green colour of the leaves?

  1. Chromoplast

  2. Chloroplast

  3. Leucoplast

  4. Amyloplast


Correct Option: B

Which of the following statements is not true for mitochondria?

  1. It contains DNA.

  2. It is called as power of house.

  3. It has a double membrane.

  4. It contains digestive enzymes.


Correct Option: D

What are the flattened disc like structures of golgi apparatus known as?

  1. Genes

  2. Cisterns

  3. ATP

  4. Ribosomes


Correct Option: B

What is the difference between SER and RER?

  1. Antolysis

  2. Presence of DNA

  3. Presence of RNA

  4. Presence of ribosomes


Correct Option: D

Rough endoplasmic reticulum has ribosomes attached to it.

  1. True

  2. False


Correct Option: A

Which of the following functions is/are not performed by golgi apparatus?

  1. Storage

  2. Packaging

  3. Cell division

  4. All of these


Correct Option: C

Plastids occur both in plants and animals.

  1. True

  2. False


Correct Option: B

Leucoplasts store starch.

  1. True

  2. False


Correct Option: A

All living cells have their own cell wall.

  1. True

  2. False


Correct Option: B

Internal cell movement is called cytoplasmic streaming.

  1. True

  2. False


Correct Option: A

All living cells have their own cell membrane.

  1. True

  2. False


Correct Option: A

Chloroplasts have their own DNA.

  1. True

  2. False


Correct Option: A

What is a peptidoglycan?

  1. Single large polymer

  2. A polymer made up of amino acids and sugar

  3. Collection of a large number of polymers

  4. Both (A) and (C)


Correct Option: B

Lysosomes are the power house of a cell.

  1. True

  2. False


Correct Option: B
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