A protoplast is a cell

a.  without plasma membrane

b.  without nucleus

c.  undergoing division

d.  without cell wall

 

Cellular organelles with membranes are 

1. nuclei, ribosomes and mitochondria

2. chromosomes, ribosomes and endoplasmic reticulum

3. endoplasmic reticulum, ribosomes and nuclie

4. lysosomes, Golgi apparatus and mitochondria.

The structures that are formed by stacking of organised flattened membranous sacs in the chloroplasts are 

1. cristae

2. grana

3. stroma lamellae

4. stroma

Select the correct matching in the following pairs.

1. Smooth ER—Oxidation of phospholipids

2. Smooth ER—Synthesis of lipids

3. Rough ER—Synthesis of glycogen

4. Rough ER—Oxidation of fatty acids

Which one of the following is not an inclusion body found in prokaryotes?

1. Phosphate granule

2. Cyanophycean granule

3. Glycogen granule

4. Polysome

Nuclear envelope is derivative of 

1. smooth endoplasmic reticulum

2. memebrane of Golgi complex

3. microtubles

4. rough endoplasmic reticulum

Cytochromes are found in

1. matrix of mitochondria

2. outer wall of mitochondria

3. cristae of mitochondria

4. lysosomes

Which structures perform the function of mitochondria in bacteria?

1. Nucleoid

2. Ribosomes

3. Cell wall

4. Mesosomes

The solid linear cytoskeletal elements having a diameter of 6nm and made up of a single

type of monomer are known as

1. microtubules

2. microfilaments

3. intermediate filaments

4. lamins

The osmotic expansion of a cell kept in water is chiefly regulated by

1. mitochondria

2. vacuoles

3. plastids

4. ribosomes