Lysosomes are the store house of :

• ATP

• sugar

• proteins

• hydrolytic enzymes

The genetic material of prokaryotic cell is called :

• nucleus

• nucleolus

• nucleoid

• centromere

In prokaryotes, the genetic material is :

• linear DNA with histones

• circular DNA with histones

• linear DNA without histones

• circular DNA without histones

Mesophyll cells, which liberate malic acid at night time, are of :

• C₄ - plants

• C₃ - plants

• C₂ - plants

• C₁ - plants

305.

What is the structural element of cell wall?

• Matrix

• Microtubules

• Microfibrils

• Arabinogalactans

The Gram (-) bacteria detect and respond to the chemicals in their surroundings by

• muramic acid

• lipopolysaccharide

• volutin granules

• porin

Small particles projecting from the inner membranes and cristae of mitochondria are known as

• myeloid bodies

• microsomes

• informosomes

• oxysomes

The resolving power of a compound light microscope will be greatest if the source of light is

• blue

• green

• yellow

• red

Primary and secondary active transport both

• generate ATP

• use ATP directly

• can move solutes against their concentration gradient

• include the passive movement of glucose molecule

Which type of membrane is most abundant within a cell?

• ER membrane

• Nuclear membrane

• Golgi membrane

• Plasma membrane