Tag: cell as structural and functional unit

Questions Related to cell as structural and functional unit

Match the column I and II.

Column I Column II
(a) K.C. Mehta (i) Fluid mosaic model
(b) P. Maheshwari (ii) First recombinant plasmid
(c) Cohen and Boyer (iii) Haploid culture
(d) Singer and Nicolson (iv) Rust disease
bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. (a)-i, (b)-iii, (c)-ii, (d)-iv

  2. (a)-iv, (b)-iii, (c)-ii, (d)-i

  3. (a)-i, (b)-ii, (c)-iii, (d)-iv

  4. (a)-ii, (b)-iii, (c)-iv, (d)-i

Show answer
Correct Option: B
Explanation:

  • K.C. Meta -  Investigated the effects of temperature on rust fungi growth.
  • P. Maheswari - Discovered the production of haploid by anther culture.
  • Cohen and Boyer - Discovered recombinant DNA technology.
  • Singer and Nicolson - proposed the fluid mosaic model of the cell membrane.

So the correct option is B.

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

bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. All organisms are formed of cells.

  2. All cells are biochemical reaction house.

  3. ATP is synthesized within cells.

  4. All of the above.

Show answer
Correct Option: D
Explanation:

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 the metabolic reactions. These have the 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.

The term chromosome was given by

bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. Waldeyer

  2. Strasburger

  3. Morgan

  4. Sutton and Boveri

Show answer
Correct Option: A
Explanation:

Schleiden and Virchow were recognized the coiled structures in nucleus as chromosomes but the term chromosome was coined by Von Waldeyer-Hartz, 

The centre for cellular and molecular biology is located at 

bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. Delhi

  2. Nagpur

  3. Mumbai

  4. Hyderabad

Show answer
Correct Option: D
Explanation:

The center for cellular and molecular Biology or CCMB is located in Hyderabad. The research programs undergoing in CCMB includes the areas of biomedicine & diagnostics, evolution & development, gene regulation in prokaryotes and eukaryotes, host-parasite interactions, membrane biology, protein structure, bioinformatics, functional genomics, theoretical biology, etc.

Who among the following is the father of Indian cytology?

bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. A. K. Sharma

  2. P. Maheshwari

  3. B. P. Pal

  4. Lal Singhji

Show answer
Correct Option: A
Explanation:

Arun Kumar Sharma or A. K. Sharma is the father of Indian cytology.

He developed various new methods for chromosome analysis and gives a new theory of speciation. He also demonstrated the role of repeat DNA sequences under stress conditions as well as in the control of various genetic characters in plants.

The living substance of cell was named by Dujardin as____________________

bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. Biotic soup

  2. Jivam

  3. Sarcode

  4. Protoplasm

Show answer
Correct Option: C
Explanation:

  • Dujardin applied the name 'sarcode' to the free plasma without a covering to protect it from the contact with the outer world. So, the living things were named as a sarcode.

Thus, the correct answer is option C.

The father of modern cytology is__________________

bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. Leeuwenhoek

  2. Robert Hooke

  3. C. P. Swanson

  4. A. K. Sharma

Show answer
Correct Option: B
Explanation:
Cytology is the branch of biology concerned with the structure and function of plant and animal cells. Where Leeuwenhoek is called the father of microbiology and Robert Hooke the father of cytology, Carl P Swanson is called the father of modern cytology. A K Sharma is called the father of Indian cytology.
So, the correct option is 'B'.


"New cells arise from pre-existing cell" is the statement given by 

bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. Max Schultze

  2. R. Virchow

  3. Altmann

  4. Purkinje

Show answer
Correct Option: B
Explanation:

Rudolf Virchow famously stated "Omnis cellula e cellula", i.e., "All cells only arise from pre-existing cells."

Virchow was a major advocate of the cell theory and published an influential theory that cells arose from each other in a continuous series of generations. 
He opposed spontaneous generation and carried out experiments in the 1850's to show that nematodes do not arise spontaneously.

Who first discovered nucleus in cell in 1831?

bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. Robert Hooke

  2. Robert Brown

  3. Altmann

  4. Swanson

Show answer
Correct Option: B
Explanation:

The nucleus was discovered by Robert Brown while he was working on orchids, under a microscope and he observed an opaque area, which he called the areola or nucleus. It is a site for the genetic material.

So, the correct answer is option B.

The first person to see the 'live cell' under the microscope was 

bio-chemistry cell-the basic unit of life introduction to cell discovery and cell theory cell discovery cell discovery and cell theory cell as structural and functional unit

  1. Robert Brown

  2. Robert Hook

  3. Altmann

  4. Leeuwenhoek

Show answer
Correct Option: D
Explanation:

The cell walls observed by Hooke gave no indication of the nucleus and other organelles found in most living cells. The first man to witness a live cell under a microscope was Anton van Leeuwenhoek, who in 1674 described the algae Spirogyra.