Chapter Wise General Science Mcq’s with Explantions
Today’s Topic:Cure and Precautions-2
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EveryDay Program List
Monday-General issues on Environmental Ecology, bio-diversity and Climate Change
Tuesday- General Science
Wednesday- Indian Polity and Governance
Thursday- History of India and Indian National Movement
Friday- Economic and Social Development
Saturday-Indian and world Geography
Today’s Topic: Cure and Precautions-2
Q1. Which of the following types of root modification help obtaining raw material from host plants:
a) Stilt b) Haustoria roots c) Epythytic roots d) None of these
Explanation: Few semi parasitic plants like mistletoe obtain raw materials from their host plant to manufacture their food. These raw materials are obtained through special adventitious roots known as sucking roots or haustroia that penetrates into the tissues of the host plant e. g. mistletoe.
Q2. Anthrax is a disease caused by which of the following:
a) Fungi b) Virus c) Algae d) Bacteria
Explanation: Anthrax is a disease caused by bacteria. It is a highly infectious disease of animals, such as cattle, sheep caused by bacterium. It could also spread to human beings. The disease is characterized by inflammatory skin lesions and high rate of mortality.
Q3. Which of the following is not disease caused by fungi:
a) Softret b) Wheat rust c) Ringworm d) Late Blight of Potato
Explanation: Soft drink is a disease of plants, such as potato, tomato, cabbage, cauliflower, cucumber caused by bacteria. The disease is characterized by large scale of death cells resulting in the formation of soft shining masses in edible part of these plants. The disease is characterized by circular patches and severe itching.
Q4. Match the followings:
A) Plant tolerating saline condition 1) Halophtes
B) Plants adapted to seasonal or perennial drought 2) Xerophtes
C) Plants that derive water and nutrients from air. 3) Epiphytes
D) Deserts plants that complete their cycle in very short period. 4) Ephermeral
A B C D
a) 1 2 3 4
b) 2 1 3 4
c) 4 2 3 1
d) 3 2 4 1
A – 1
B – 2
C – 3
D – 4
Q5. These roots grew in marshy places and are also called breathing roots. They come out vertically outgrowth from the ground and grow into the air to absorb O2 from atmosphere through their numerous pores. Which roots has been referred to in above statement:
a) Haustoria b) Epiphytic roots c) Assimilatory roots d) Pneumatophores
Explanation: The branches of the roots that spread under the ground develop vertically outgrowth that come above the ground and grow into the air. These are known as pneumatophres. They are also called breathing roots because they absorbs O2 from the atmosphere through their numerous pores e. g. mangrove root.
Q6. Consider the given statement and choose correct code:
1) Epithetic root develop adventitious roots that freely hang in the air to absorb oxygen with help of a spongy tissue called Velamen.
2) There is an organic connection between the epiphytic and trees on which they therive.
a) Only 1 is true b) Both are untrue c) Only 2 is true d) Both are true
Explanation: There is no organic connection between epithets root and trees on which they thrive. The tree merely provided mechanical support. Epiphytic root absorbs atmospheric moisture with the help of spongy tissue called velamen.
Q7. Match the following List-1 and List-2:
A) Green revolution 1.Milk production
B) White revolution 2.Food grains
C) Blue revolution 3.Fish production
D) Yellow revolution 4.Edible oil.
A B C D
a) 2 1 3 4
b) 1 2 3 4
c) 2 1 4 3
d) 3 4 1 2
Green revolution – Food grains
Yellow revolution – Edible oil
Blue revolution – Fish production
White revolution – Milk production
Q8. In the given below which is not a disease caused by bacteria:
a) Plague b) Leprosy c) Mumps d) Tuberculosis
Explanation: Plague, Leprosy, Tubercuosis are caused by bacteria but mumps is not caused by bacteria. Mumps is a disease caused by paramyxo virus. With painful enlargement of parotid glands, there is difficulty in opining of the mouth.
Q9. In the given below which one of the disease not caused by virus?
a) Chicken pox b) Measles c) Influenza d) Typhoid
Explanation: Chicken pox, influenza, measles are caused by virus but typhoid is not caused by virus. Typhoid is caused by red shape bacterium with numerous flagella, which help in active movement. So option (d) is not correct.
Q10. Match the following List-1 and List-2:
A) Protoplasm 1) De Duve
B) Cell theory 2) Altman
C) Mitcochondria 3) Purkense
D) Lysosome 4)Schleiden
A B C D
a) 3 4 2 1
b) 3 4 1 2
c) 1 2 3 4
d) 1 3 2 4
Protoplasm – Purkense
Cell Theory – Schleiden
Mitochondria – Altman
Lysosome – De Duve
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