AIPMT 2015 Biology Model Test Paper- 20 Practice MCQs Multiple Choice Questions Fully Solved with Answer Key Free

AIPMT All India Pre Medical Test is conducted by CBSE in compliance with the directives of the Hon'ble Supreme Court of India for admissions to 15% seats of Medical/ Dental colleges of India. Some other State Govt university or  institutions also use AIPMT merit list for admission in the Medical Colleges/Dental Colleges against seats under their control. Here we have published model test paper for Biology for practice purpose with objective type MCQs multiple choice questions based on AIPMT previous years question papers.

AIPMT 2015 Biology Model Test Paper - 20

Q.1. Auxospores and hormocysts are formed, respectively, by :

A) Several diatoms and a few cyanobacteria
B) Several cyanobacteria and several diatoms
C) Some diatoms and several cyanobacteria
D) Some cyanobacteria and many diatoms

Q.2. Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these :

A) Enhance oxidative metabolism
B) Are conjugated proteins
C) Are exclusively synthesized in the body of a living organism as at present
D) Help in regulating metabolism

Q.3. The bacterium (Clostridium botulinum) that causes botulism is :

A) A facultative anaerobe
B) An obligate anaerobe
C) A facultative aerobe
D) An obligate aerobe

Q.4. Which one of the following is the correctly matched pair of an endangered animal and a National Park ?

A) Lion — Corbett National Park
B) Rhinoceros — Kaziranga National Park
C) Wild ass — Dudhwa National Park
D) Great Indian bustard —Keoladeo National Park

Q.5. The wavelength of light absorbed by Pr form of phytochrome is:

A) 620 nm
B) 640 nm
C) 680 nm
D) 720 nm

Q.6. Opening of floral buds into flowers, is type of:

A) Autonomic movement of growth
B) Autonomic movement of locomotion
C) Autonomic movement of variation
D) Paratonic movement of growth.

Q.7. Nitrogen fixation in root nodules of Alnus is brought about by

A) Azorhizobium
B) Bradyhizobium
C) Clostridium
D) Frankia

Q.8. The energy releasing process in which the substrate is oxidised without an external electron acceptor is called

A) Glycolysis
B) Fermentation
C) Photorespiration
D) Aerobic respiration

Q.9. What is not true for genetic code?

A) It is nearly universal
B) It is degenerate
C) It is unambiguous
D) A codon in mRNA is read in a non-contiguous fashion

Q.10. Which one of the following plants is monoecious?

A) Pinus
B) Cycas
C) Papaya
D) Marchantia

Q.11. Sertoli cells are found in:

A) ovaries and secrete progesterone
B) adrenal cortex and secrete adrenaline
C) seminiferous tubules and provide nutrition to germ cells
D) pancreas and secrete cholecystokinin

Q.12. Which one of the following cannot be explained on the basis of Mendel's Law of Dominance?

A) The discrete unit controlling a particular character is called a factor
B) Out of one pair of factors one is dominant, and the other recessive
C) Alleles do not show any blending and both the characters recover as such in F2 generation.
D) Factors occur in pairs

Q.13. Which one of the following statements is correct for secondary succession?

A) It is similar to primary succession except that it has a relatively fast pace
B) It begins on a bare rock
C) It occurs on a deforested site
D) It follows primary succession

Q.14. Which one of the following shows maximum genetic diversity in India?

A) Mango
B) Groundnut
C) Rice
D) Maize

Q.15. Which one of the following is a wrong statement ?

A) Eutrophication is a natural phenomenon in freshwater bodies
B) Most of the forests have been lost in tropical areas
C) Ozone in upper part of atmosphere is harmful to animals
D) Greenhouse effect is a natural phenomenon

Q.16. Identify the possible line "A" in the following food chain : Plant -> insect -> frog -> "A" -> Eagle

A) Parrot
B) Rabbit
C) Wolf
D) Cobra

Q.17. The colonies of recombinat bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of :

A) Non-recombinant bacteria containing betagalactosidase
B) Insertional inactivation of alphagalactosidase in non-recombinant bacteria
C) Insertional inactivation of alphagalactosidase in recombinant bacteria
D) Inactivation of glycosidase enzyme in recombinant bacteria

Q.18. Which of the following are likely to be present in deep sea water ?

A) Archaebacteria
B) Eubacteria
C) Blue-green algae
D) Saprophytic fungi

Q.19. Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly cut coleoptile stumps. Of what significance is this experiment?

A) It supports the hypothesis that IAA is auxin
B) It demonstrated polar movement of auxins
C) It made possible the isolation and exact identification of auxin
D) It is the basis for quantitative determination of small amounts of growth-promoting substances

Q.20. Person with blood group AB is considered as universal recipient because he has

A) No antigen on RBC and no antibody in the plasma
B) Both A and B antigens in the plasma but no antibodies
C) Both A and B antigens on RBC but no antibodies in the plasma
D) Both A and B antibodies in the plasma

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Answer Key: 

Q.1-	A	Q.2-	D	Q.3-	B	Q.4-	B	Q.5-	C
Q.6-	A	Q.7-	D	Q.8-	B	Q.9-	D	Q.10-	A
Q.11-	C	Q.12-	C	Q.13-	C	Q.14-	C	Q.15-	C
Q.16-	D	Q.17-	C	Q.18-	A	Q.19-	C	Q.20-	C

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We have tried our best to present important questions with correct answer key. Any suggestion or update about any erroneous entry or answer is always appreciable. Please comment your score or any suggestion in comment section below.

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