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The middle lamella of cell wall is mainly composed of

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Important Questions on The Unit of Life

MEDIUM
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
Which of the following pair of organelles does not contain DNA?
EASY
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
In a chloroplast the highest number of protons are found in:
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Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
Water-soluble pigments found in plant cell vacuoles are:
MEDIUM
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
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
EASY
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
Which of the following statements about inclusion bodies in incorrect?
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Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
Which of the following are not membrane-bound?
EASY
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
Which one of the following cell organelles are enclosed by a single membrane?
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Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are:
MEDIUM
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
If the flagellum is provided with two or more rows of lateral appendages and the axoneme ends in a terminal naked filament, then it belongs to this type
EASY
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
The region of chromatin that is stained lightly is
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Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
Cellular organelles with membranes are:
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Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
The structures that help some bacteria to attach to rocks and/or host tissue are:
HARD
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
Nuclear envelope is a derivative of:
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Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
A protoplast is a cell:
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Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
The chromosomes in which centromere is situated close to one end are:
EASY
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
DNA is not present in:
HARD
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
Select the correct matching in the following pairs:
MEDIUM
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
Microtubules are the constituents of:
EASY
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview
The motile bacteria are able to move by:
MEDIUM
Biology>Cell: Structure and Functions>The Unit of Life>The Cell- An Overview

Choose the correct statements
i. Ribosomes are found in Cytoplasm, Chloroplasts, Mitochondria and on rough ER
ii. Mesosomes in bacteria are not the sites of DNA replication
iii. Algae cell wall made of cellulose, galactans, mannan and calcium carbonate
iv. Mitochondria, chloroplast and peroxisomes are the part of Endomembrane System

The correct answer is