Biology MCQs

Biology Mcqs are from the different sections of Biology. which will help the students to get higher marks in biology subject. students can prepare for Medical Entry Test from our topic wise Multiple Choice question of Biology. These Mcqs will Help you to get higher marks especially in Biology Mcqs portion of test. These Mcqs are useful for students and job seekers i.e MCAT ECAT ETEA test preparation, PPSC Test, FPSC Test, SPSC Test, KPPSC Test, BPSC Test, PTS, OTS, GTS, JTS, CTS, NTS.

Most cell membranes are composed principally of ?

A. DNA ad protein
B. Protein and Lipids
C. Protein and Chitin
D. Protein and RNA

The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by ?

A. Environmental biologist
B. Paleontologist
C. Marine biologist
D. Social biologist

Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the ?

A. Concentration of water molecules inside and outside the cell
B. Concentration of enzymes on either side of the cell membrane
C. Rate of molecular motion on either side of the cell membrane
D. None of these

It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect?

A. Older sediment layers have equal amount of these radioactive isotopes as that of the young ones
B. Older sediment layers have less amount of these radioactive isotopes as that of the young ones.
C. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.
D. Older sediment layers did not have these radioactive isotopes

Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of

A. Diffusion
B. Passive transport
C. Osmosis
D. Active transport

An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called?

A. Biome
B. Phyletic lineage
C. Community
D. Population

Proteins are made from amino acids by the process of ______________?

A. Hydrolysis
B. Pinocytosis
C. Dehydration synthesis
D. Active transport

Biological sciences have a set methodology and it is based on ?

A. Experimental inquiry
B. Esthetic preference
C. Philosophical ideas
D. Imaginations

Which is an organic compound found in most cells ?

A. Water
B. Glucose
C. Oxygen
D. Sodium chloride

A series of hypothesis supported by the results of many tests is called ?

A. Scientific law
B. Theory
C. Data
D. Deduction

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