Question 1

In microspheres duration of action …………
A)Fast
B)Slow
C)Moderate
D)None

Accepted Answer

Microspheres are designed to release drugs slowly over a period of time, so they have a slow duration of action.

Question 2

Which are the not proper ideal properties of the microspheres ?
A)Longer duration of action
B)Control of content release
C)Protection of drug
D)Decrease of therapeutic efficiency

Accepted Answer

Microspheres are designed to enhance the delivery and efficacy of drugs, so an ideal property would not include the decrease of therapeutic efficiency. Properties like longer duration of action, control of content release, and protection of drug are beneficial and sought after in microsphere technology.

Question 3

Which are the example of non biodegradable synthetic polymers used in preparation of microspheres?
A)Proteins
B)Poly (acryl) dextran
C)PMMA
D)Lactides

Accepted Answer

PMMA (Polymethyl methacrylate) is a non-biodegradable synthetic polymer commonly used in the preparation of microspheres.

Question 4

Which are the examples of natural material used in preparation of the microspheres?
A)Albumin
B)Gelatin
C)All
D)None

Accepted Answer

Albumin and gelatin are both examples of natural materials used in the preparation of microspheres. Albumin is a protein found in blood plasma, and gelatin is derived from collagen obtained from various animal body parts. Both are biocompatible and have been widely used in pharmaceutical applications for controlled drug delivery.

Question 5

The charge present on the DNA backbone is negative. The force required to accelerate the molecules towards anode is directly proportional to the number of ____________
A)sugar molecules
B)nitrogenous bases
C)phosphate groups
D)both phosphate group and sugar molecules

Accepted Answer

The negative charge on the DNA backbone is due to the phosphate groups. The more phosphate groups there are, the stronger the negative charge, and thus the force required to accelerate the molecules towards the anode (positively charged electrode) in electrophoresis is directly proportional to the number of phosphate groups.

Quiz 4: Nanotechnology and Microspheres

In microspheres duration of action …………

Which are the not proper ideal properties of the microspheres ?

Which are the example of non biodegradable synthetic polymers used in preparation of microspheres?

Which are the examples of natural material used in preparation of the microspheres?

The charge present on the DNA backbone is negative. The force required to accelerate the molecules towards anode is directly proportional to the number of ____________