Fluidity of the cell membrane is measured

  • On the amount of cholesterol and protein in membrane

  • On the amount of carbohydrate in membrane

  • On the lateral movement of proteins within the overall bilayer

  • On the flip-flop movement of protein

Which of the following cell organelle is a major site for the synthesis of steroidal hormones?

  • SER                        

  • Golgi bodies

  • Ribosomes              

  • Peroxisome

The content of nucleolus is continuous with nucleoplasm

  • Through microtubules

  • Through nuclear pores

  • Due to lack of membrane

  • Due to presence of channels in membrane

The central part of proximal region of centriole is called hub which is made of

  • Protein                    

  • Lipoprotein

  • Phospholipid           

  • Oligosaccharide

Glycosylation, general secretion and recycling of broken plasma membrane are functions specifically performed by

  • Glyoxysome            

  • SER

  • RER                        

  • Golgi complex

Many of the organelle show coordination in their functions and are considered together as an endomembrane system. Find odd one out with respect. this statement

  • ER                          

  • Golgi complex

  • Vacuole                   

  • Plastid

Which of the following is true for nucleolus?

  • Larger nucleoli are present in dividing cells.

  • It is a membrane-bound structure.
  • It takes part in spindle formation.
  • It is a site for active ribosomal RNA synthesis.

The Golgi complex participates in

 
  • Fatty acid breakdown
  • Formation of secretory vesicles
  • Respiration in bacteria
  • Activation of amino acid
Which of the following events does not occur in rough endoplasmic reticulum ?

 
  • Protein folding
  • Protein glycosylation
  • Cleavage of signal peptide
  • Phospholipid synthesis

Inclusion bodies of blue-green, purple, and green photosynthetic bacteria are :
Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as

 
Select the incorrect match:
Which one of the following cell organelles is enclosed by a single membrane?

 

Identify the correct order of organization of genetic material from largest to smallest.

True nucleus is absent in

 

DNA is not present in

Cytochromes are found in

 

Match the following and select the correct answer : 
List - I 
A) Centriole 
B) Chlorophyll 
C) Cristae 
D) Ribozymes 
List – II 
(i) Infoldings in mitochondria 
(ii) Thylakoids 
(iii) Nucleic acids 
(iv) Basal body cilia or flagella
Which one of the following organelle in the figure correctly matches with its function? 
 
 
 
 
Pigment-containing membranous extensions in some cyanobacteria are:
 
 
 
 

 
Peptide synthesis inside a cell takes place in
Keeping in view the 'fluid mosaic model' for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?
In germinating seeds fatty acids are degraded exclusively in the

Which one of the following statements about mycoplasma is wrong ?

The concept of "Omnis cellula-e-cellula" regarding cell division was first proposed by:

The shorter and longer arms of submetacentric chromosome are referred to as:

Which of the following pair of organelles does not contain DNA?

Which of the following cell organelles is present in the highest number in secretory cells?

Non-membranous nucleoplasmic structures in nucleus are the site for active synthesis of

 

Which of the following nucleic acids is present in an organism having 70 S ribosomes only?
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