Entry Test Biolgy Class 11Th 12Th Chapter 06

CHAPTER 6

 Medical Entry Test Important MCQs Biolgy

Choose the most appropriate answer:

1.In majority of the Fungi the chief component of the cell wall is:
a. Cellulose
b. Lignin
c. Protein
d. Chitin
Correct Ans. (d)

2.Cellulose is absent in the cell wall of most:
a. Fungi
b. Algae
c. Pteredophytes
d. Bryophytes
Correct Ans. (a)

3.The hyphae of Rhizopus are :
a. Non-septate
b. Septate
c. Uninucleate
d. Non of these
Correct Ans. (a)

4.Rhizopus is:
a. Parasite
b. Sporophyte
c. Tracheophyte
d. Saprophyte
Correct Ans. (d)

5.The spores of Rhizopus are:
a. Motile
b. Non-motile
c. Flagellate
d. Naked
Correct Ans. (b)

6.Which of the following is used in cheese production:
a. Amanita
b. Rhizopus
c. Penecillium
d. Neurospora
Correct Ans. (c)

7.Smut is caused by:
a. Bacteria
b. Virus
c. Plasmodium
d. Fungi
Correct Ans. (d)

8.Which of the following is a human disease caused by Fungi?
a. Powdery mildew
b. Ring worm
c. Rusts
d. Downy mildew
Correct Ans. (b)

9.Ulva is:
a. Unicellular
b. Filamentous
c. Tubular
d. None of these
Correct Ans. (a)

10.Sexual reproduction in which small male gamete is motile while the large femalegamete is immotile is called:
a. Isogamy
b. Anisogamy
c. Oogamy
d. Karyogamy
Correct Ans. (d)

11.Mycorrhiza is association of:
a. Root-fungus
b. Stem-fungus
c. Alga-fungus
d. Bacteria-fungus
Correct Ans. (a)

12.Mycorrhizal association is:
a. Parasitic
b. Symbiotic
c. Saprophytic
d. Chlorophytic
Correct Ans. (b)

13.Sporophyte generation produces:
a. Gametes b. Zygote
c. Embryo
d. Spores
Correct Ans. (d)

14.The chromosome number in the gametes of Ulva is:
a. Diploid
b. Triploid
c. Teraploid
d. Monoploid
Correct ans. (d)

15.The number of chromosomes in the cells of the Sporophyte plant body of Ulva is:
a. Diploid
b. Triploid
c. Teraploid
d. Monoploid
Correct Ans. (a)

16.Euglena is an animal because it lacks:
a. Nucleus
b. Chloroplast
c. Cell wall
d. Cell membrane
Correct Ans. (c)

17.Mycelium is a term used for:
a. Mass of spores
b. Mass of sporangia
c. Mass of hyphae
d. Zoospores
Correct Ans. (c)

18.Root-like hyphae of Rhizopus are called:
a. Stolon
b. Sporangiophore
c. Rhizoids
d. Rhizophores
Correct Ans. (c)

19.Pyrenoid is involved in:
a. conversion of sugar into starch b. Conversion of starch into sugar
c. Synthesis of protein
d. Photosynthesis
Correct Ans. (a)

20.Stigeoclonium is:
a. Fresh water unicellular green alga
b. Fresh water multi cellular blue-green alga
c. Fresh water multi cellular green alga
d. Marine multi cellular green alga
Correct Ans. (c)

21.Morels and truffles are:
a. Poisonous b.Non-edible
c. Delicious
d. None of these
Correct Ans. (c)

22.In Rhizopus food is stored in the form of:
a. starch
b. glucose
c. lipid
d. glycogen
Correct Ans. (d)

23.Amanita is:
a. Useful
b. Edible
c. Poisonous
d. None of these
Correct Ans. (c)

24.In which of the following reproductive organs are not surrounded by sterile cells?
a. Thallophytes
b. Bryophytes
c. Pteriodophytes
d. Spermatophytes
Correct Ans. (a)

25.Which of the following lack chlorophyll?
a. algae b. mosses
c. liverworts
d. fungi
Correct Ans. (d)

26.The saprophytes
a. live on living organic matter
b. prepare their own food
c. live on non-living organic matter
d. do not need food
Correct Ans. (c)

27. Which of the following is not the asexual method of reproduction in fungi?
a. fragmentation
b. budding
c. spore formation
d. conjugation
Correct Ans. (d)

28. Which of the following is common method of asexual reproduction in yeasts?
a. budding
b. binary fission
c. multiple fission
d. spore formation
correct Ans. (a)

29. Which of the following is included in sexual reproduction?
a. meiosis
b. fusion of haploid nuclei
c. formation of zygote
d. all of these
Correct Ans. (d)

30. The hyphae of Rhizopus are:
a. without nuclei
b. Uninucleate
c. Binucleate
d. Multinucleate
Correct Ans. (d)

31. Which of the following constitute the body of Rhizopus?
a. Stolon
b. Sporangiophores
c. Rhizoids
d. All of these
Correct Ans. (d)

32. Which of the following anchor the  Rhizopus and absorb nutrients?
a. Stolon
b. Rhizoids
c. Sporangiophores
d. None of these
Correct Ans. (b)

33. Which of the following form a network over the surface of the food?
a. stolon
b. rhizoids
c. Sporangiophores
d. All of these
Correct Ans. (a)

34. The dome shaped structure formed in the sporangium of Rhizopus is called:
a. crown
b. corona
c. columella
d. calyptra
Correct Ans. (c)

35. Each gametangium in Rhizopus contains:
a. One nucleus
b. Two nuclei
c. Many nuclei
d. No nucleus
Correct Ans. (c)

36. Which of the following is adaptation of fungi for terrestrial mode of life?
a. production of zoospores
b. heterotrophic mode of nutrition
c. presence of cell wall
d. absence of flagellated spores
Correct Ans. (d)

37. Which of the following is not true of zygospore of Rhizopus?
a. without a wall
b. has diploid nuclei
c. has a thick wall
d. resistant to unfavourable condition
Correct Ans. (a)

38. Which of the following has been used extensively in understanding the principlesof inheritance?
a. Rhizopus
b. Agaricus
c. Neurospora
d. Penecillium
Correct Ans. (c)

39. Which of the following is edible?
a. Amanita
b. Morels
c. Rhizopus
d. All of these
Correct Ans. (b)

40. Which of the following causes rusts in cereals?
a. Rhizopus
b. Penecillium
c. Puccinia
d. Neurospora
Correct Ans. (c)

41. Which of the following causes smut in wheat?
a. Phytophthora
b. Ustilago
c. Agaricus
d. Aspergillus
Correct Ans. (b)

42. Which of the following diseases is not caused by fungi?
a. potato blight
b. fire-blight
c. powdery mildew
d. downy mildew
Correct ans. (b)

43. Athletes foot disease in man caused by:
a. Epidermophyton
b. Penecillium
c. Rhizopus
d. Agaricus
Correct Ans. (a)

44. Which of the following is useful activity of fungi?
a. decomposition of food
b. causing diseases
c. recycling nutrient by decomposing organic compounds
d. destroying of timbers
Correct Ans. (c)


45. Which of the following is not present in Chlamydomonas?
a. cup-shaped chloroplast
b. eye spot
c. nucleus
d. central vacuole
Correct Ans. (d)

46.Which of the following is the method of asexual reproduction in Chlamydomonas?
a. budding
b. fragmentation
c. Akinetes formation
d. Zoospore formation

Correct Ans. (d)

47.Meiosis in Stigeoclonium occurs:
a. before gamete formation
b. after gamete formation
c. in the zygote
d. during zoospore formation
Correct Ans. (c)

48.Which of the following genera exhibits an alternation of generations, with haploidand diploid multicellular phase?
a. Chlamydomonas
b. Stigeoclonium
c. Ulva
d. Euglena
Correct Ans. (c)

49.In which of the following multicellular haploid phase alternates with unicellular diploid phase?
a. Chlamydomonas
b. Stigeoclonium
c. Ulva
d. Euglena
Correct Ans. (c)

50.Which of the following statement is true of Fungi Imperfecti?
a. produce gametes
b. reproduce sexually
c. have sexual phase
d. lack sexual phase
Correct Ans. (d)

51.Zygotes of species in the group Thallophyta
a. do not develop into embryo with in the parent plant
b. are flagellated
c. have triploid nuclei
d. form from the union of diploid cells
Correct Ans. (a)

52.Where there is alternation of generation, the diploid multicellular plant is called:
a. gametophyte
b. saprophyte
c. Sporophyte
d. Parasite
Correct Ans. (c)

53.Which of the following is mismatched?
a. Rhizopus_______ heterotrophic
b. Pink bread mold ______ Penecillium
c. Stigeoclonium ______heterotrichous
d. Ulva ______marine
Correct Ans. (b)

54.Which of the following is the characteristic of all fungi?
a. autotrophic b. parasitic
c. saprophytic
d. heterotrophic
Correct Ans. (d)

55.The fusion of two motile dissimilar gametes is called:
a. Isogamy b. Anisogamy
c. Oogamy
d. somatogamy
Correct Ans. (b)

56.Zygospores are generally absent in a culture of Rhizopus hyphae developed froma single spore due to:
a. deficiency of nutrients
b. excess of nutrients
c. presence of plus and minus strains
d. absence of plus and minus strains
Correct Ans. (d)


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