Biology Mcqs

If a plasmolysed plant cell is placed in water the cell will___________?

• (A)  Burst
• (B)  Be Killed
• (C)  Be deplasmolysed
• (D)  Show no change in it

Answer

Submitted By :Ali Uppal

Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong____________?

• (A)  Globular proteins
• (B)  Fibrous Proteins
• (C)  Both a and b
• (D)  None of these

Answer

Submitted By :Ali Uppal

The food of hydra consists of___________?

• (A)  Humus
• (B)  Detritus
• (C)  Dead microscopic animals
• (D)  Small crustaceans

Answer

Submitted By :Ali Uppal

Which of the following are triploblastic and acoelomate?

• (A)  Sponges
• (B)  Annelida
• (C)  Platyhelminthes
• (D)  Aves

Answer

Submitted By :Ali Uppal

helical structure is kept by the formation of _________ bonds among amino acids molecules?

• (A)  H bonds
• (B)  Disulphide Bond
• (C)  Ionic bond
• (D)  Hydrophobic bonds

Answer

Submitted By :Ali Uppal

Which of the following occurs in anaerobic respiration but not in aerobic respiration?

• (A)  Release of CO2
• (B)  Reduction of NAD
• (C)  Formation of ATP
• (D)  Production of ethanol from acetaldehyde

Answer

Submitted By :Ali Uppal

Which of the following does not show quaternary structure____________?

• (A)  Haemoglobin
• (B)  Pepsin
• (C)  Fibrin
• (D)  Insulin

Answer

Submitted By :Ali Uppal

The type of learning in which there is loss or decrease in response to repeated stimuli?

• (A)  Imprinting
• (B)  Habituation
• (C)  Latent learning
• (D)  Insight learning

Answer

Submitted By :Ali Uppal

Keto group is represented as___________?

• (A)  CO
• (B)  C-COO-C
• (C)  HCOH
• (D)  HOH

Answer

Submitted By :Ali Uppal

Sleep movements are a type of___________?

• (A)  Turgor movements
• (B)  Growth movements
• (C)  Tactic movements
• (D)  Paratonic movments

Answer

Submitted By :Ali Uppal