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What is the approximate size of nucleus in a typical mammalian cell?

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Important Questions on Cell : The Unit of Life

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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
The shorter and longer arms of a submetacentric chromosome are referred to as:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
In a chloroplast the highest number of protons are found in:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
Which of the following structure is not found in a prokaryotic cell?
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
The chromosomes in which centromere is situated close to one end are:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
The solid linear cytoskeletal elements having a diameter of 7 nm and made up of a single type of monomer are known as:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
A cell organelle containing hydrolytic enzymes is:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
Which of the following organelles contain circular DNA?
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
Water-soluble pigments found in plant cell vacuoles are:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
Cellular organelles with membranes are:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
Which of the following are not membrane-bound?
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic 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:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
Which of the following statements is not correct?
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
Select the wrong statement.
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
Which of the following processes leads to DNA ladder formation?
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
The mitochondrial inner membrane consists of a number of infoldings called cristae. The increased surface area due to cristae helps in:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
DNA is not present in:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic 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
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Ultrastructure of Eukaryotic Cell
The region of chromatin that is stained lightly is