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Biosciences – Botany and Zoology Study Material बिभाग ‘ङ’

Biosciences – Botany and Zoology Study Material बिभाग ‘ङ’ Shared By Promodh Shirke

Biosciences – Botany and Zoology Study Material बिभाग ‘ङ’ on mahasarkar.co.in. This is the page where we are deal with Biosciences – Botany and Zoology Study Material For Maharashtra Recruitment Exam. Every questions come from various source i.e. Study of life; cell-the basic unit of life; Classificaton of Living organisams; Organization of Living Body; Nutrition; Respiration; The Transport System; Excretion Metabolic wastes; Biocommunication; Muscle Movement Etc. यह पेज ओह सब स्टूडेंट के लिए है, जो नौकरी की तलाश में हैं और भारती परिक्षा दिने के लिए इच्छुक हैं।

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Biosciences – Botany and Zoology Study Material बिभाग ‘ङ’

  1. Red tides have often visited the west coast of Florida resulting in the death of hundreds of millions of fish. Such tides are caused by

(1) Red algae

(2) Red din flagellates

(3) Red-coloured industrial effluents

(4) Red-coloured pigment of blue-green algae

Ans:- (2) Red din flagellates

  1. Nori has been a favourite Japanese food for centuries. This is prepared/obtained from

(1) A green alga

(2)  A red alga

(3) Sea weeds

(4) Rice starch

Ans:- (2)  A red alga

  1. The red rust of tea is caused by

(1) A bacterium

(2) Fungus

(3) Green alga

(4) Virus

Ans:- (3) Green alga

  1. Lichen is a symbiotic association between an alga and which one of the following

(1) A bacterium

(2) Fungus

(3) Liverwort

(4) Fern

Ans:- (2) Fungus

  1. Some plants develop fruits without fertilization. This phenomenon is called

(1) Apocarpy

(2) Apogamy

(3) Parthenocarpy

(4) Syncarpy

Ans:-

  1. Some flowering plants produce allergenic pollen grains. Which of the following is/are such plants?

(1) Congress grass

(2) Fat hen (bathu)

(3) Spiny Amaranth

(4) All the above

Ans:- (3) Spiny Amaranth

  1. Which of the following statements about green plants is true?

(1) Leaves are the respiratory organs of plants

(2) Only green plants at night and photosynthesize during

(3) They respire at night and photosynthesize during the day

(4) They respire all the time, like animals, but the rate of photosynthesis during the day is much higher than rate of respiration.

Ans:- (4) They respire all the time, like animals, but the rate of photosynthesis during the day is much higher than rate of respiration.

  1. Which of the following spices is obtained from roots?

(1) Cinnamon

(2) Clove

(3) Turmeric

(4) None of the above

Ans:- (4) None of the above

  1. Which of the following plant disease is caused by bacteria?

(1) Citrus dieback

(2) Tundu disease in wheat

(3) Tikka disease in peanut

(4) Leaf curl in tomato

Ans:- (2) Tundu disease in wheat

  1. The antibiotic penicillin is obtained from

(1) a bacterium

(2) Fungus

(3) Synthetic means

(4) Virus-infected cells

Ans:- (2) Fungus

  1. The antibiotic ampicillin is

(1) A synthetic drug

(2) Obtained from a bacterium

(3) Obtained from a plant extract

(4) Semi synthetic drug

Ans:- (4) Semi synthetic drug

  1. The first fungicide discovered for plant diseases was

(1) Bordeaux mixture (b)

(2) DDT

(3) Nitrosan

(4) Suramin

Ans:- (1) Bordeaux mixture (b)

  1. The water core disease of apples is caused by

(1) Boron deficiency

(2) Bacterial infection

(3) Fungal infection

(4) High temperatures

Ans:- (4) High temperatures

  1. The necrotic ring spot disease of stone fruits (Cherry, peach, plum, etc.) is caused by

(1) A bacterium

(2) Fungal infection

(3) Molybdenum deficiency

(4) Virus

Ans:- (4) Virus

  1. Which of the following plant diseases is caused by a virus?

(1) Aster yellows

(2) Barley yellow dwarf

(3) Curly top of sugar beets

(4) all the above

Ans:- (4) all the above

  1. The witch weed disease of plants like sugarcane and rice is caused by

(1) Bacterial infection

(2) An angiospermic parasite

(3) Virus

(4) None of the above

Ans:- (2) An angiospermic parasite

  1. Which of the following plants diseases is not a bacterial disease?

(1) Brown rot of potatoes

(2) Citrus canker

(3) Heart rot of beets

(4) Red stripe of sugarcane

Ans:- (3) Heart rot of beets

  1. Which of the following is a bacterial disease?

(1) Early blight of potatoes

(2) Loose smut of wheat

(3) Red rot of sugarcane

(4) Red stripe of sugarcane

Ans:- (4) Red stripe of sugarcane

  1. The most promising method of controlling nematodes in the field has been through the use of chemicals called nematocides. Which of the following is such a chemicals?

(1) Chloropicrin

(2) Nemagon

(3) Zinophos

(4) All the above

Ans:- (2) Nemagon

  1. Effective method/s of controlling nematodes is/are

(1) Crop rotation

(2) heat treatment

(3) use of nematocides

(4) All the above

Ans:- (3) use of nematocides

  1. The source of three important narcotic drugs-bhang, ganja and hashish (charas)-is one and the same plants. Which one of the following is this plants?

(1) Henbane

(2) Indian hemp

(3) Poppy

(4) Rauwolfia

Ans:- (2) Indian hemp

  1. The disease not transmitted by house-fly is

(1) Cholera

(2) Enteric fever

(3) Dengue fever

(4) Yellow fever

Ans:- (3) Dengue fever

  1. Other than spreading malaria, Anopheles mosquitoes are also vectors of

(1) Dengue fever

(2) Filariasis

(3) Encephalitis

(4) Yellow fever

Ans:- (2) Filariasis

  1. One of the pandemic diseases is

(1) Amoebic dysentery

(2) Hepatitis

(3) Filariasis

(4) Influenza

Ans:- (4) Influenza

  1. A group of diseases normally transmitted between vertebrate animals and man is

(1) Yellow fever, Plague, Taeniasis

(2) Plague, rabies, smallpox

(3) Ancylostomiasis, ascariasis, plague

(4) Plague, rabies, taeniasis

Ans:- (4) Plague, rabies, taeniasis

  1. The first effective vaccine against polio was prepared by

(1) John Heynsham Gibbon

(2) James Simpson

(3) Jonas E. Salk

(4) Robert Edwards

Ans:- (3) Jonas E. Salk

  1. Which one of the following groups of diseases spreads through mosquito bites among humans?

(1) Malaria, Filariasis, poliomyelitis

(2) Ancylostomiasis, ringworm, dengue fever

(3) Dengue fever, viral encephalitis, yellow fever

(4) Filariasis, malaria, ascariasis

Ans:- (3) Dengue fever, viral encephalitis, yellow fever

  1. Rubella is also known as

(1) Red Measles

(2) Black Measles

(3) German Measles

(4) All of the above

Ans:- (4) All of the above

  1. Heavy alcohol consuming people generally die of

(1) Blood cancer

(2) Cirrhosis

(3) Liver or stomach cancer

(4) Weakening of heart muscles leading to cardiac arrest

Ans:- (2) Cirrhosis

  1. The body louse is the vector of

(1) Yellow fever

(2) Epidemic typhus

(3) Trench fever

(4) Dengue fever

(1) 1 and 2

(2) 1 and 3

(3) 2 and 3

(4) 3 and 4

Ans:- (3) 2 and 3

  1. A simple sequence in which the grass grows, a cow eats the grass, a human eats the cow or drinks its milk, is an example of

(1) Food chain

(2) Food web

(3) Food cycle

(4) Pyramid

Ans:- (1) Food chain

  1. The major jute producing countries in order of their production are:

(1) India>Bangladesh>Russia>China

(2) Bangladesh> India> China> Russia

(3) India> Bangladesh> China> Burma

(4) Bangladesh> India> China> Burma

Ans:- (3) India> Bangladesh> China> Burma

  1. The increase in population all over the world is due to

(1) Tremendous increase in birth rate

(2) Significant decrease in morbidity rate

(3) Gradual decrease in morbidity rate

(4) Failure to adopt family planning contraceptive devices

Ans:- (4) Failure to adopt family planning contraceptive devices

  1. The density of population in a country is obtained by counting the total number of individuals

(1) In respect of fertile land area

(2) In respect of total land area

(3) In respect of habitable and inhabitable areas

(4) Per unit area

Ans:- (4) Per unit area

  1. A powerful eye irritant present in smog is

(1) Ozone

(2) Nitric oxide

(3) Peroxyacety1 nitrate

(4) Sulphur dioxide

Ans:- (3) Peroxyacety1 nitrate

  1. Coal burning power plants and factories are responsible for about 86% of

(1) Carbon monoxide in the atmosphere

(2) Sulphur dioxide in the atmosphere

(3) Chlorine in the atmosphere

(4) Nitrogen dioxide in the atmosphere

Ans:- (2) Sulphur dioxide in the atmosphere

  1. Which of the following are not prokaryotes?

(1) Chlorella

(2) Influenza virus

(3) Tuberculosis bacterium

(4) Yeast

(1) 1 and 2

(2) 2 and 3

(3) 1, 2 and 3

(4) 1, 2 and 4

Ans:- (4) 1, 2 and 4

  1. An animal cell differs from a plant cell in

(1) Lacking a cell wall

(2) Lacking chloroplasts

(3) Having centrioles

(4) Having haemoglobin

(1) 1 and 2

(2) 1 and 3

(3) 1, 2 and 3

(4) 1, 2 and 3

Ans:- (2) 1 and 3

  1. There are twenty chromosomes in a somatic cell of maize. Compare the chromosome numbers given as follows with the organ of the maize plant.

(1) Endosperm 30

(2) Pollen grains 10

(3) Root 30

(4) Leaf 20

Which of the above pairs are correctly matched?

(1) 1, 2 and 3

(2) 1, 2 and 4

(3) 2 and 4

(4) Only 4

Ans:- (3) 2 and 4

  1. They are forty six chromosomes in a normal human body cell. Compare the chromosome numbers given below with the special structure in the human body.

(1) Ovum 23

(2) Sperm 46

(3) Kidney cells 46

(4) Urinary bladder 23

Which of the above pairs are correctly matched?

(1) 1, 2 and 4

(2) 2, 3 and 4

(3) 1 and 3

(4) 1, 3 and 4

Ans:- (2) 2, 3 and 4

  1. Compare the photosynthetic pigments given below with the plant group:

(1) Fucoxanthin          brown algae

(2) Phycoerythrin       red algae

(3) Phycocyanin          green algae

(4) Lutein                     angiospermic leaves

Which of the above pairs are correctly matched?

(1) 1 and 4

(2) 1, 2 and 4

(3) 2, 3 and 4

(4) 1 and 3

Ans:- (3) 2, 3 and 4

  1. Consider the following discoveries in life sciences:

(1) Principles of heredity

(2) Nucleus

(3) DNA as the genetic material

(4) Light essential for photosynthesis

The correct chronological sequence of these discoveries is:

(1) 2,3,1,4

(2) 1,2,4,3

(3) 4,2,1,3

(4) 2,1,3,4

Ans:- (2) 1,2,4,3

  1. If the above man was sometimes required to donate blood, to whom among the relations mentioned above could he donate?

(1) Son only

(2) Son and brother

(3) Wife and daughter

(4) Wife, son, and daughter

Ans:- (2) Son and brother

  1. Four pairs of legs are found in

(1) Scorpion

(2) Shrimp

(3) Spider

(4) Bristle tail

(1) 1, 2 and 3 are correct

(2) 1 and 3 are correct

(3) 3 and 4 are correct

(4) 2 and 4 are correct

Ans:- (1) 1, 2 and 3 are correct

  1. Many coenzymes that are of enormous value in activating a number of metabolic enzymes, are derived from

(1) Riboflavin

(2) Nicotinamide

(3) Ascorbic acid

(4) Glutamate

(1) 1 and 2 are correct

(2) 2 and 3 are correct

(3) 3 and 4 are correct

(4) 1 and 4 are correct

Ans:- (3) 3 and 4 are correct

  1. The enzymes that make possible the penetration of a spermatozoon into the ovum are

(1) Trypsin-like enzyme

(2) Hyaluronidase

(3) Sperm ease

(1) 1 and 4 are correct

(2) 2 and 3 are correct

(3) 1 and 2 are correct

(4) 3 and 4 are correct

Ans:- (3) 1 and 2 are correct

  1. Which of the following diseases are sexually transmitted?

(1) Trichomoniasis and AIDS

(2) Chlamydia and syphilis

(3) Genital herpes and oriental sore

(4) Gonorrhea and giardiasis

(1) 1 and 2

(2) 2 and 3

(3) 1 and 3

(4) 3 and 4

Ans:- (1) 1 and 2

  1. Listed below are groups of diseases. Which of these are deficiency diseases?

(1) Simple goiter and oriental sore

(2) Xerophthalmia and colour blindness

(3) Night blindness and marasmus

(4) Beri beri and osteomalacia

(1) 1 and 2

(2) 1 and 3

(3) 2 and 3

(4) 3 and 4

Ans:- (4) 3 and 4

  1. Consider the following scheme of the circulation of blood in the mammalian heart

(1) Left auricle

(2) Right auricle

(3) Left ventricle

(4) Right ventricle

The correct sequence in which blood flows through the mammalian heart in

 (1) 2, 1 ,4, 3

(2) 1, 2, 3, 4

(3) 2, 4, 1, 3

(4) 4, 3, 2, 1

Ans:- (3) 2, 4, 1, 3

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