MCQ Bank
The binding of the neurotransmitter acetylcholine at certain synapses opens channels that admit ________ and initiate a nerve impulse or muscle contraction.
- A) Na+
- B) S-
- C) K+
- D) Mg+
The term biophysics wasoriginally introduced by ---------in 1892.
- A) Watson & Crick
- B) Karl Pearson
- C) Dannimm Keran
- D) Stonney
Natural radiation accounts for about _________ of the radiation doses to which we are subjected.
- A) 50%
- B) 90%
- C) 80%
- D) 70%
The Society publishes the Biophysical journal----------- monthly
- A) Thrice
- B) Once
- C) Twise
- D) Daily
Mother bats eat up to ___________ insects in one night.
- A) 4000
- B) 5000
- C) 3000
- D) 4500
-----------is the study of the electrical nature of tissues and cells.
- A) Electroscopy
- B) Electrophysiology
- C) Electrobiology
- D) Electrology
Bioacoustics as a scientific discipline was established by the __________
- A) Ivan Regen
- B) Watson
- C) Watson
- D) Martin
The energy required to break a bondis called the?
- A) Gibbs energy
- B) free energy
- C) gravitational energy
- D) bond energy
Organisms have been producing mineralized skeletons for the past _________.
- A) 550 million years
- B) 700 million years
- C) 570 million years
- D) 600 million years
What makes the moleculesattracted to one another?
- A) Intermolecular force
- B) Intermolecular force
- C) Supramolecular force
- D) Super molecular force
__________ are cylindrical Polymer and made of α and β tubulents.
- A) Microtubules
- B) Mitochondria
- C) Ribosomes
- D) Actin Filaments
Device that measures pressure using mechanical deformation.
- A) Barometer
- B) Bourdon Tube
- C) Pressure Meter
- D) PH Meter
The basic operating principle of ultrafiltration uses a pressure induced separation of solutes from a solvent through a _____________ membrane.
- A) Semi permeable
- B) Transitive
- C) Permeable
- D) Impermeable
Parts of your eyes ears. nose, and skin that sense your environment are made by-----
- A) DNA
- B) Proteins
- C) Lipids
- D) RNA
__________ is used to transport salt ions from one solution through ion-exchange membranes to another solution under the influence of an applied electric potential difference.
- A) RNA dialysis
- B) Electro dialysis
- C) Protein dialysis
- D) DNA dialysis
DNAwasdiscovered in----------------------
- A) 1953
- B) 1963
- C) 1970
- D) 1973
SIPD stands for _______
- A) Self indicating pocket dosimeter
- B) Self indicating packed dosimeter
- C) Self indicating pocket device
- D) None of these
During affinity chromatography, composition of mobile phase is changed for the ....... of product.
- A) lysis
- B) degradation
- C) Elution
- D) precipitation
When _________ interact with tissue, they ionize atoms.
- A) Beta rays
- B) Neutrons
- C) Alpha Rays
- D) Gamma rays
___________ is the process by which molecules adopt a defined arrangement without guidance or management from an outside source.
- A) Intra-molecular self-assembly
- B) None of these
- C) Molecular self-assembly
- D) Intermolecular self-assembly