Objective Questions
Question. A Dutch scientist A.V. Leeuwenhoeck discovered bacteria for the first time in:
a. Soil
b. Rain water
c. Air
d. Garden soil
Answer
B
Question. In cyanophyceae, flagella are:
a. Present in zoospores only
b. Present
c. Present in gamete stage only
d. Absent
Answer
D
Question. Diphtheria is caused by:
a. Diplococcus
b. Bacillus
c. Corynebacterium
d. Vibrio
Answer
C
Question. Currently bacteria are included in:
a. Thallophyta
b. Monera
c. Mycota
d. Protista
Answer
B
Question. Bacteria lack alternation of generations because there is:
a. No exchange of genetic material
b. Distinct chromosomes are absent
c. No conjugation
d. Neither syngamy nor reduction division
Answer
D
Question. Streptococcus is used in preparation of:
a. Wine
b. Cheese
c. Idli
d. Bread
Answer
B
Question. Murein does not occur in the wall of:
a. Blue green algae
b. Nostoc
c. Eubacteria
d. Diatoms
Answer
D
Question. Infection of Entamoeba histolytica is prevented by:
a. Uncontaminated food
b. Avoiding clothes of patient
c. Avoiding kissing
d. None of the above
Answer
A
Question. Euglena stores food as:
a. Paramylum
b. Starch
c. Fat
d. Protein
Answer
A
Question. What is not true of Euglena?
a. Presence of cellulose cell wall
b. Presence of proteinaceous pellicle
c. Presence of chlorophyll
d. Presence of flagellum
Answer
A
Question. Red tides are caused by
a. Red algae
b. Brown algae
c. Golden algae
d. Fire algae
Answer
A
Question. Primitive relatives of animals:
a. Protozoans
b. Bacteria
c. Algae
d. Humans
Answer
A
Question. Passive food ingestion in Amoeba is known as
a. Import
b. Invagination
c. Circumfluence
d. Circumvallation
Answer
A
Question. When a fresh water protozoan, possessing a contractile vacuole is placed in a glass containing marine water, the vacuole will?
a. Disappear
b. Increase in number
c. Increase in size
d. Decrease in size
Answer
D
Question. Nutrition in Amoeba is:
a. Holophytic
b. Holozoic
c. Parasitic
d. Saprobic
Answer
B
Question. Protists obtain food as:
a. Holotrophs
b. Photosynthesisers
c. Chemosynthesisers
d. Photosynthesisers, symbionts and holotrophs
Answer
D
Question. Entamoeba histolytica excretes through:
a. Food vacuole
b. Contractile vacuole
c. General surface
d. Malpighian tubules
Answer
B
Question. Seeding ponds with Gambusia fish is an example of:
a. Parasitism
b. Biocontrol
c. Hyperparasitism
d. Both (a) and (b)
Answer
B
Question. Spraying kerosene on stagnant water shall kill Anopheles due to:
a. Burning of body wall
b. Prevention of spiracle to come in contact with air
c. Diffusion into body
d. Entry into and blocking of respiratory tract
Answer
D
Question. Certain stages of Plasmodium vivax may survive for a long time in liver of man in dormant state. On reactivation they enter into cycle, this stage is known as:
a. Exoerythocytic schizogony
b. Cycle of Ross
c. Gametogony
d. Erythrocytic schizogony
Answer
D
Question. Leishmania tropica produces:
a. Oriental sores
b. Kala-azar
c. Dysentery
d. Sleeping sickness
Answer
A
Question. During unfavourable conditions, the plasmodium differentiates to form fruiting bodies bearing spores at their tips. This group is
a. Chrysophytes
b. Dinoflagellates
c. Slime moulds
d. Protozoans
Answer
C
Question. The members of which of the following are litter decomposers?
a. Deuteromycetes
b. Ascomycetes
c. Basidiomycetes
d. Phycomycetes
Answer
A
Question. Match The following:
| A. Leishmania donovani | 1. Malaria |
| B. Wuchereria bancrofti | 2. Amoebiasis |
| C. Trypanosoma gambiense | 3. Kalaazar |
| D. Entamoeba histolytica | 4. Sleeping sickness |
| 5. Filariasis |
a. A-3 B-4 C-5 D-1
b. A-3 B-5 C-2 D-1
c. A-4 B-3 C-2 D-1
d. A-3 B-5 C-4 D-2
Answer
D
Question. Saprolegnea belongs to:
a. Phycomycetes
b. Ascomycetes
c. Basidiomycetes
d. Deuteromycetes
Answer
A
Question. Truffels are the member of class:
a. Basidiomycetes
b. Ascomycetes
c. Deuteromycetes
d. Phycomycetes
Answer
B
Question. Drosophila of the plant kingdom is:
a. Alternaria
b. Aspergillus
c. Neurospora
d. Albugo
Answer
C
Question. Coenocytic hyphae is found in:
a. Rhizopus
b. Mucor
c. Saprolignia
d. All of the above
Answer
D
Question. Which of the following is irrelavent to the kingdom Plantae?
a. Spirogyra
b. Rhizopus
c. Funaria
d. Cycas
Answer
B
Question. According to two-kingdom classification, the kingdom Plantae consists of
a. Autotrophs
b. Heterotrophs
c. Mesotrophs
d. Chemotrophs
Answer
A
Question. Kingdom Animalia is characterized by
a. Unicellular, prokaryotic and autotrophic
b. Multicellular, eukaryotic and heterotrophic
c. Multicellular, prokaryotic and saprophytic
d. Unicellular, eukaryotic and heterotrophic
Answer
B
Question. In plants, mosaic formation, leaf rolling and curling, yellowing of plant parts, vein clearing, dwarfing and stunted growth, necrosis, etc., are the symptoms of
a. Bacterial diseases
b. Mycoplasmal diseases
c. Viral diseases
d. Fungal diseases
Answer
C
Question. Virus could be crystallized and crystals consist largely of proteins. This was shown by
a. W. M. Stanley
b. M. W. Stanley
c. W. M. John
d. None of these
Answer
A
Question. Those viruses infect plants have which type of genetic material?
a. Single stranded DNA
b. Single stranded RNA
c. Double stranded RNA
d. Double stranded DNA
Answer
B
Question. Genetic material of bacteriophage
a. Double stranded DNA
b. Single stranded RNA
c. Double stranded RNA
d. Single stranded DNA
Answer
A
Question. Lichens are very good pollution indicator because they are sensitive to
a. Sulfur trioxide
b. Sulfur dioxide
c. Carbon dioxide
d. Global warming
Answer
B
Question. Coliphase ϕ × 174 virus contains:
a. Single stranded RNA
b. Single stranded DNA
c. Double stranded RNA
d. Double stranded DNA
Answer
B
Question. Reverse transcriptase is:
a. RNA dependent DNA polymerase
b. DNA dependent RNA polymerase
c. DNA dependent DNA polymerase
d. RNA dependent RNA polymerase
Answer
A
Question. T-bacteriophages possess:
a. Rounded shape
b. Irregular shape
c. Tadpole shape
d. Rhomboid shape
Answer
C
Question. Circular single stranded DNA occurs bacteriophage:
a. T2, T4
b. T3, ϕ6
c. ϕ × 174, M13
d. δ, T5
Answer
C
