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10th March 2016, 12:38 PM
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Re: BCECE Previous Year Papers

Bihar Combined Entrance Competitive Examination (BCECE) is conducted by BCECEB for MBBS, Engineering, BAMS, BHMS, Other courses for admission into different State Colleges. Examination is conducted in two phase Prelim & Mains.


BCECE Previous Year Paper
1. A prokaryotic cell lacks
(a) nucleus (b) nuclear membrane
(c) membrane bound organelles (d) all of these
2. Extranuclear inheritance is a consequence of the presence of genes in
(a) ER and mitochondria (b) lysosomes and ribosomes
(c) ribosomes and chloroplast (d) mitochondria and chloroplasts
3. Vesicles of smooth endoplasmic reticulum (SER) are most likely on their way to
(a) plastids (b) lysosomes
(c) nucleolus (d) golgi apparatus
4. Lysosomes are the store house of
(a) ATP (b) sugar
(c) proteins (d) hydrolytic enzymes
5. Lipids are insoluble in water, because lipid molecules are
(a) neutral (b) zwitter ions
(c) hydrophobic (d) hydrophilic
6. Which of the following is the simplest amino acid?
(a) glycine (b) alanine
(c) tyrosine (d) asparagine
7. Carbohydrates, ingested in the diet, are hydrolyzed by the enzyme
(a) pepsin (h) cellulase
(c) cc-amylase (d) glycosidase
8. Stomach is the site of digestion mainly for
(a) fats (b) proteins
(c) carbohydrates (d) all of these
9. Which proteolytic enzyme induces lysis of fibrin during fibrinolysis ?
(a) fibrin (b) thrombin
(c) plasmin (d) plate let factor VII
10. Which of the following enzymes is used to join bits of DNA ?
(a) ligase (b) primase
(c) endonuctease (d) DNA polymerase
11. Ail eukaryotic genes contain two kinds of base sequences. Which of the following plays role
in protein synthesis ?
(a) introns (b) exons .
(c) electrons (d) both ‘a` and ‘b’
12. The genetic material of prokaryotic cell is called
(a) nucleus (b) nucleolus
(c) nucleoid (d) centromere
13. In prokaryotes, the genetic material is
(a) linear DNA with histories
(b) circular DNA with histones
(c) linear DNA without histones
(d) circular DNA without histones
14. The direction of DNA replication is from
(a) amino acid end (b) 3` end towards 5′end
(c) 5′ end towards 3′ end (d) amino terminus to carboxy terminus
15. In operon concept, regulator gene functions as
(a) repressor (b) regulator
(c) inhibrtor (d) initiator
16. The importance of meiosis lies in
(a) bringing discontinuous variations
(b) addition in the number of chromosomes
(c) reduction in die number of chromosomes
(d) maintaining the number of chromosomes
17. la mitotic cell division, the division of centromere and the division of chromatid occurs
between
(a) anaphase and telophase (b) prophase and metaphase
(c) telophase and interphase (d) anaphase and metaphase
18. In which stage of the first meiotic division, each chromosome undergoes longitudinal
division to give rise to two sister chromatids ?
(a) zygotene (b) diplotene
(c) diakinesis (d) pachytene
19. Mirabilis jalapa is an example of .
(a) complete dominance (b) supplementary gene
(c) incomplete dominance (d) complementary gene
20. Which of the following is dominant character according to Mendel?
(a) dwarf plant and yellow fruit
(b) terminal fruit and wrinkled seed
(c) white testa and yellow pericarp
(d) green coloured fruit and rounded seed
21. Lack of independent assortment of genes A and B in fruit fly Drosophila is due to
(a) repulsion (b) linkage
(c) crossing-over (d) recombination
22. When two mutations are located in the same functional unit or in different functional units,
then it is confirmed by
(a) test cross (b) back cross
(c) reciprocal cross (d) complementation test
23. Prototherians are connectiong links between
(a) amphibians and aves (b) reptiles and mammals
(c) fishs and amphibians (d) reptiles and amphibians
24. The pioneers in the field of ‘organic evolution’ are
(a) Karl Landsieiner, Hugo de Vries, Malthus
(b) Darwin, Hugo de Vries, Lamarck, Huxley
(c) Lamarck, Karl Landesteiner, Malthus, Hugo de Vries
(d) Darwin, Lamarck, Karl Landsteiner, Hugo de Vries
25. Drawin finches are related to which of the following evidences ?
(a) fossils (b) embryology
(c) anatomy (d) geographical distribution
26. Allopatric sepeciation is due to
(a) geographical separation of population
(b) hybridization between closely related species
(c) migration of the members of species from one to other population
(d) both 2 and 3
27. Evolutionary convergence is characterized by
(a) development of characteristics by random mating
(b) replacement of common characteristic in different groups
(c) development of dissimilar characteristics in closely related groups
(d) development of a common set of characteristics in groups of different ancestry
28. How many sub-phyla are available in Tracheata, according to Tippo’s classification of
kingdom plantae ?
(a) 4 (b) 6
(c) 8 (d) 10
29. The usage of binomial names, for plant species, was accepted by all after the publication of
the works by
(a) Hooker (b) Linnaeus
(c) Bentham (d) Darwin
30. What is a key stone species ?
(a) a rare species that has minimal impact on biomass and on other species in community
(b) a dominant species that constitutes a large proportion of biomass, -which affects many other
species
(c) a common species that has plenty of biomass, yet has a fairly low impact on me community’s
organization
(d) a species which makes up only a small proportion of the total biomass of a community, yet
has a huge impact on the commu¬nity’s organization and survival
31. In biotic community, which of the following can be called protective device ?
(a) mimicry (b) symbiosis
(c) competition (d) parasitism
32. In which of the following population, genetic drift operates
(a) island (b) smaller
(c) larger (d) continantal
33. The driving force of an ecosystem is
(a) producers (b) biomass
(c) solar energy (d) grassland
34. The correct match of atmospheric gases is
(a) nitrogen-0.03%, oxygen-78.08%, argon-0.93% and CO2-20.95%
(b) nitrogen-78.08%,oxygen-20.95%, argon-0.03% and CO2-0.03%
(c) mtrogen-0.03%, oxygen-78.08%, argon-20.95% and CO2-0.93%
(d) nitrogen-78.08%, oxygen-20.95%, argon-O.93% and CO2-0.03%
35. Zooplanktons are
(a) parasites (b) primary producers
(c) primary consumers (d) primary decomposers
36. Photochemical smog formed in congested metropolitan cities mainly consists of
(a) hydrocarbons, ozone and SOx
(b) hydrocarbons, SO2 and CO2
(c) smoke, peroxyacetyl nitrate and SO2
(d) ozone, peroxyacetyl nitrate and NOx
37. Acid rain is due to increase in atmospheric concentration of
(a) ozone (b) CO2 and CO
(c) SO3 and CO (d) SO2 and nitrogen oxide
38. The true statement about ‘green-house effect’ is that it Is caused by
(a) CO2 only (b) S02 only
(c) CO2 and SO2 (d) CO2, CFC, CH4 and NO2 gases
39. Which of the following statement about viruses is correct ?
(a) viruses are obligate parasites
(b) viruses contain both RNA and DNA
(c) nucleic acid of viruses is known as capsid
(d) viruses possess their own metabolic system
40. The virus, that infects bacteria, are made up of
(a) protein only (b) RNA and protein
(c) DNA and lipid (d) DNA and protein
41. The first transgenic crop was
(a) pea (b) flax
(c) tobacco (d) cotton
42. One of the major difficulties in the biological control of insect pests is the
(a) practical difficulty of introducing the predator to specific areas
(b) method is less effective as compared with the use of insecticides
(c) predator does not always survive when transferred to a new environment
(d) predator develops a preference to other diets arid may itself become a pest
43 Casparian strips are present in
(a) cortex (b) epidermis
(c) endodermis (d) hypodermis
44. The function of microvilli is
(a) cellular movement
(b) specilized uptake a macro molecules , –
(c) increase in surface area.for absorption
(d) extensive movement of substances over cell surface
45. Chemiosmotic theory of ATP synthesis, in the chloroplast and mitochondria, is based on
(a) proton gradient (b) membrane potential
(c) accumulation of K ions (d) accumulation of Na ions
46. The plants respond to photoperiods due to the presence of
(a) enzymes (b) stomatas
(c) phytochromes (d) phytohormones
47. Meaophyll cells, which librate malic acid at night time, are ,’
(a) C4-plants (b) C3-plants .
(c) C,-plants (d) C,-plants[/magz_one_half]
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48. Photorespiration in C3-pIants starts from
(a) glycine (b) glycerate
(c). phosphoglycolate. (d) phosphoglycerate
49. Anaerobic respiration is also called
(a) restoration (b) fragmentation
(c) multiplication (d) fermentation
50. Biological oxidation in Kreb’s cycle involves
(a) O2 (b) N2
(c) CO2 (d) SO2

more paper detail attached a pdf file;
Attached Files
File Type: pdf BCECE Previous Year Paper.pdf (59.6 KB, 78 views)


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