EASY
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Which of the following has the maximum % of the total cellular mass?

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Important Questions on Cell - The Unit of Life

EASY
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Which one of the following is not applicable to RNA?
MEDIUM
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Identify the correct order of organization of genetic material from largest to smallest :
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Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Chromatophores take part in:
MEDIUM
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
The molecular weight of E coil. DNA is 3.1×109 g/mol. The average molecular weight of the nucleotide pair is 660 g/mol and each nucleotide pair contributes to 0.34 nm to the length of DNA. The length of E coli DNA molecule will be approximately:
MEDIUM
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Fertilization in humans is practically feasible only if:
EASY
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Proteins P, Q, and R are associated with an intact organellar membrane in a cell. If the intact organelle is treated with a high ionic strength buffer, only protein R remained associated with the membrane fraction. Based on this, one could conclude that:
EASY
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
If you suspect major deficiency of antibodies in a person, to which of the following would you like for confirmation evidence?
HARD
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Gene regulation governing lactose operon of E. coli that involves the lac I gene product is:
MEDIUM
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Microtubules are the constituents of:
MEDIUM
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell

Mitochondria and chloroplast are:

(i) Semi - autonomous organelles

(ii) Formed by the division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery

Which one of the following option is correct?

EASY
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
The schematic below describes the states of the lac operon in the absence of lactose. Which ONE of the following happens when lactose is present in the cell?
Question Image
EASY
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
The concept of “Omnis cellula-e cellula” regarding cell division was first proposed by:
HARD
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Nuclear envelope is a derivative of:
MEDIUM
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Match the columns and identify the correct option.
 
  Column I   Column II
A Thylakoids (i) Disc-shaped sacs in Golgi apparatus
B Cristae (ii) Condensed structure of DNA
C Cisternae (iii) Flat membranous sacs in stroma
D Chromatin (iv) Infoldings in mitochondria
MEDIUM
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
In sea urchin DNA, which is double-stranded, 17% of the bases were shown to be cytosine. What are the percentages of other three bases expected to be present in this DNA?
EASY
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Which one of the following is not an inclusion body found in prokaryotes?
HARD
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Select the correct matching in the following pairs:
EASY
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Root pressure is usually acidic because:
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Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
The size of Pleuropneumonia-like Organism (PPLO) is:
EASY
Biology>Cell: Structure and Function>Cell - The Unit of Life>Introduction to Cell
Fill up the blanks with suitable words.
Schleiden __i__ observed that all plants are composed of different kind of cells. Schwann __ii__ studied animal cells and reported that plants have __iii__ and all cells had __iv__ , and Virchow explained that cells divided and formed new cells from __v__. This constitutes __vi__.
A) Cell theory
B) Zoologist
C) Existing cells
D) Cell wall
E) Plasma membranes
F) Botanist