1512 + Interview Questions in Biology in Class 9 Page 8 InterviewSolution

351.	Question : Under which of the following conditions is a person most likely to fall sick ? (a) When she is recovering from malaria ? (b) When she has recovered from malaria and is taking care of someone suffering from chickenpox. (c ) When she is on a four-day fast after recovering from malaria and she is taking care of someone suffering from chickenpox. Why?
Answer» Solution :The OPTION (C) is the answer. When a PERSON is recuperating from a disease, she requires more nourishing food to build the stamina. ALSO her immunity should be strong enough to fight against any further complications. THEREFORE, if a person has already suffered from malaria, she should not be in contact with another person suffering from chickenpox.

Discussion

352.	Question : Under which of the following conditions are you most likely to fall sick ? (a) When you are taking examinations. (b) When you have travelled by bus and train for two days. (c ) When your friend is suffering from measles. Why ?
Answer» SOLUTION :When our friend is suffering from measles, we should not visit him. Measles is highly infectious disease and if our immunity is less, we will catch that infection instantly. Moreover, measles is an air-bornc infection. The microbes CAUSING measles MAY enter through coughing and sneezing of the patient. The droplet infection is most LIKELY and hence the answer is (c).

Discussion

353.	Question : Under which of the following conditions are you mostlikely to fall sick ? (a) When you are taking examinations (b) When you have travelled by bus and train for two days. (c) When your friend is suffering from measles Why?
Answer» Solution :When your FRIEND is SUFFERING from measles, as it is an infectious DISEASE.

Discussion

354.	Question : Types of pesticides.
Answer» SOLUTION :HERBICIDES, INSECTICIDES and FUNGICIDES.

Discussion

355.	Question :Two specimens (A) and (B) were observed by a child for spotting as shown below:
Answer» SOLUTION :GYMNOSPERMS, ALGAE

Discussion

356.	Question : Two methods of weed control.
Answer» Solution :Mechanical removal and preventive measures like PROPER seed bed PREPARATION and TIMELY SOWING of CROPS.

Discussion

357.	Question : Two groups of microorganisms from which antibiotics could be extracted.
Answer» ANSWER :BACTERIA and FUNGI

Discussion

358.	Question : Tube wells are used to tap water from water bearing strata.
Answer» ANSWER :1

Discussion

359.	Question : Try preparing temporary mounts of leaf peels, tip of roots of onion or even peels of onions of different sizes : After performing the above activity, let us see what the answers to the following questions would be:Could we find differences among the cells from different parts of a plant body?
Answer» Solution :Cells from different parts of the plant are different in the SHAPE, SIZE and STRUCTURE. They perform different functions and HENCE are not ALIKE.

Discussion

360.	Question : Try preparing temporary mounts of leaf peels, tip of roots of onion or even peels of onions of different sizes : After performing the above activity, let us see what the answers to the following questions would be: What similarities could we find ?
Answer» SOLUTION :The NUCLEUS and cytoplasm is surrounded by a cell WALL. In all types of PLANT cells VACUOLES are seen which are larger in size. Both these characters are similar in all cells.

Discussion

361.	Question : Try preparing temporary mounts of leaf peels, tip of roots of onion or even peels of onions of different sizes : After performing the above activity, let us see what the answers to the following questions would be: Do all cells look alike in terms of shape and size?
Answer» SOLUTION :CELLS from ONE specimen look alike in SIZE and shape. But the size and shape of cells from DIFFERENT parts of the plant look different.

Discussion

362.	Question : Try preparing temporary mounts of leaf peels, tip of roots of onion or even peels of onions of different sizes : After performing the above activity, let us see what the answers to the following questions would be: Do all cells look alike in structure?
Answer» SOLUTION :All the cells have nucleus and a cell wall. The nucleus is embedded in CYTOPLASM. Hence, all the above cells SEEM to have similar structure.

Discussion

363.	Question :Trees with fine needle-like leaves are usually found in the hilly areas. They are called :
Answer» mosses CONIFERS algae fungi SOLUTION :conifers

Discussion

364.	Question : Transportation of water takes place through ……& ……
Answer» ANSWER :TRACHEIDS and VESSELS

Discussion

365.	Question : Transpiration takes place through…………. .
Answer» fruit seed flower stomata Answer :D

Discussion

366.	Question : Tracheal system is not developed in butterflies.
Answer» ANSWER :F

Discussion

367.	Question : Trachea begins from the …………..
Answer» ANSWER :PHARYNX

Discussion

368.	Question : Trachea are the respiratory organ of Annelida.
Answer» SOLUTION :TRACHEA are the RESPIRATORY ORGAN of ARTHROPODA.

Discussion

369.	Question : To which directional stimuli do (a) roots resond (b) shoots respond?
Answer» SOLUTION :(a) Root respondpositively geotrophicand negatively phototrophic. (b) Shoots RESPOND negatively geotrophic and POSITIVELY phototrophic.

Discussion

370.	Question : To which phylum do the first triploblastic animals of the animal kingdom belong?
Answer» Coelenterata Porifera PLATYHELMINTHES ARTHROPODA SOLUTION :Platyhelminthes

Discussion

371.	Question : To which phyllum does jellyfish belong?
Answer» Mollusca Annelida COELENTERATA Echinodermata SOLUTION :Coelenterata

Discussion

372.	Question : To which group would a plant that produces flowers belongs?
Answer» BRYOPHYTA PTERIDOPHYTA Gymnopserms ANGIOSPERMS Solution :Angiosperms

Discussion

373.	Question : To which group does the following organism belong and give one reason for each : (a) Cyanobacteria (b ) Euglena (c) Ulothrix
Answer» Solution :(a) Cyanobacteria belongs to kingdom Monera. They do not have well-defined nucleus or cell organelles. Their cell walls are composed of a peptidoglycan layer. Therefore they are placed in Monera. (b ) Euglena belongs to kingdom PROTISTA. They are UNICELLULAR. They posses whip-like flagella. They are motile and autotrophic, so they are placed in Protista. (C) Ulothrix belongs to kingdom Plantae and DIVISION THALLOPHYTA. They are multicellular algae. They are predominantly aquatic and are autotrophic without any differentiation of the plant body. Thus they are placed in Thallophyta of kingdom, Plantae.

Discussion

374.	Question : To which division does marchantia belong:
Answer» Thallophyta BRYOPHYTA PTERIDOPHYTA GYMNOSPERMS SOLUTION :Bryophyta

Discussion

375.	Question : To what is photoperido related?
Answer» SOLUTION :DURATION of SUNLIGHT

Discussion

376.	Question : To what are cultivation practices and crop yield related?
Answer» Solution :WEATHER, SOIL quality and AVAILABILTIY of WATER.

Discussion

377.	Question : To study biodiversity, visit nearby pond, field, orchard, forest, zoologicial part or wildlife sanctuary, etc and collect information and pictures of animals and plants you find there.
Answer» ANSWER :N/a

Discussion

378.	Question : To prevent the entry of food into the trachea, the opening is guarded by......................
Answer» Epiglottis Glottis Hard palate Soft palate Answer :A

Discussion

379.	Question : To observe cells in an onion peel, we must prepare the slide by mounting on it...
Answer» crushed pulp of ONION. dry SCALE leaf. green leaf of onion (SPRING onion) THIN layer of fishy leaf of onion. Answer :A

Discussion

380.	Question : To ensure maximum utilisation or nutrients, spreading of pest and diseases to crop in the field……metbod is used. (mixed cropping, inter cropping, rotation of crops)
Answer» ANSWER :INTER CROPPING

Discussion

381.	Question : Tissue fluid that reaches the lymph capillaries is called ……
Answer» ANSWER :LYMPH

Discussion

382.	Question : Through what does Japanese encephalitis spread ?
Answer» POLLUTED WATER MOSQUITO bite Polluted air Dog bite Answer :B

Discussion

383.	Question : Through what is AIDS spread ?
Answer» By SEXUAL CONTACT with AIDS INFECTED person. Through blood-to-blood contact:Through an AIDS infected mother to her BABY on breast feeding. All the given Answer :D

Discussion

384.	Question : Through ……...infectious agents are introduced in the body and immunity is developed.
Answer» ANSWER :VACCINATION

Discussion

385.	Question : Three types of manures.
Answer» SOLUTION :COMPOST, VERMICOMPOST and GREEN MANURE.

Discussion

386.	Question : Three factors on which cultication practices and crop yield depend.
Answer» Solution :WEATHER, soil QUALITY and availabiltiy of WATER.

Discussion

387.	Question : Think of one change you would wish for in your surroundings in order to avoid any of/most of the above illnesses.
Answer» Solution :The infectious DISEASES SPREAD through pathogens or disease causing microbes. In ORDER to control the spread of infections, FOLLOWING measures have to be taken: (1) Water sources should be protected and never allowed to be contaminated. (2) Road side eateries should be closed down. (3) Stagnant pools of dirty water help in the breeding of mosquitoes. Such pools should be immediately cleared. (4) The entire area will be kept clean and garbage free in order to curtail pathogens. (5) Rabid animals will be treated and vaccinated in order to save from animal transmitted infections. Help of organizations like PETA will be taken to vaccinate and sterilize street dogs and cats.

Discussion

388.	Question : They synthetic preservatives do not delay the microbial growth and do not keep the food safe for long duration .
Answer» Solution :Correct Statement : The synthetic preservatives DELAY the microbial growth and KEEP the FOOD safe for LONG duration.

Discussion

389.	Question :There is some degree of tissue formation in the phylum....... . (Porifera, Platyhelminthes, Coelenterata)
Answer» SOLUTION :PLATYHELMINTHES

Discussion

390.	Question : There is plentyhof scope for fisheries in our country.
Answer» Solution :1. India has a sea coast, having a length of 7500 kilometre and the sea is quite deep. 2. Available INLAND WATER covers as much as 1.6 MILLION hectares area. 3. Due to intensive attempts of farmers, cooperative societies and GOVERNMENT, the awareness for fisheries as an industry is developed in the people. 4. There is facility available for obtaining SCIENTIFIC training in fisheries. Due to all these factors, there is plenty of scope for inland as well as marline fisheries in our country.

Discussion

391.	Question : There is a need for sustainable practices in agriculture and animal husbandry.
Answer» Solution :In the recent years, the food production in Indian went up SUBSTANTIALLY by green and WHITE revolution. But when these techniques were practicds,there are chances of damage to our NATURAL resources. This damages the balance of environment. This should not happen. Therefore, there si a NEED for sustainable practices in AGRICULTURE and animal husbandry.

Discussion

392.	Question : There are signs of ……...always present around the curved bacteria responsible for peptic ulcers.
Answer» ANSWER :INFLAMMATION

Discussion

393.	Question : The virus, causing Japanese encephalitis (brain fever) enters through…………... (mosquito, air, water)
Answer» ANSWER :MOSQUITO

Discussion

394.	Question : The valves of the left ventricle is the tickest one. What may be its reason?
Answer» Answer :the WALL of the left VENTRICLE is the thickest ONE because it NEEDS to PUMP blood to most of the body, while the right ventricle fills only the lungs.

Discussion

395.	Question : The upper lip pf cockroach is called
Answer» MAXILLA stipes mandible ligula Answer :C

Discussion

396.	Question : The undefined nuclear region, containing only nucleic acids, in the cells of bacteria included in prokaryotes and blue-green algae is called ....... (nucleold, nucleolus, nucleoplasm)
Answer» SOLUTION :NUCLEOID

Discussion

397.	Question : The umbrella-like spherical part of the button mushroom is ....
Answer» STIPE PILEUS Sporangiophore Sporangium SOLUTION :Pileus

Discussion

398.	Question : The two major category of life are …………… and………..
Answer» SOLUTION :PROKARYOTES, EUKARYOTES

Discussion

399.	Question : The tropic movement that helps the climbing vines to find a suitable support is…………
Answer» Phototropism geotropism thigmotropism chemotropism Answer :C

Discussion

400.	Question : The tissue composed of living thin walled polyhedral cell is ______
Answer» PARENCHYMA COLLENCHYMA SCLERENCHYMA NONE of the above Answer :A

Discussion

Explore topic-wise InterviewSolutions in .

Question : Under which of the following conditions are you most likely to fall sick ? (a) When you are taking examinations. (b) When you have travelled by bus and train for two days. (c ) When your friend is suffering from measles. Why ?

Question : Under which of the following conditions are you mostlikely to fall sick ? (a) When you are taking examinations (b) When you have travelled by bus and train for two days. (c) When your friend is suffering from measles Why?

Question : Types of pesticides.

Question :Two specimens (A) and (B) were observed by a child for spotting as shown below:

Question : Two methods of weed control.

Question : Two groups of microorganisms from which antibiotics could be extracted.

Question : Tube wells are used to tap water from water bearing strata.

Question : Try preparing temporary mounts of leaf peels, tip of roots of onion or even peels of onions of different sizes : After performing the above activity, let us see what the answers to the following questions would be: What similarities could we find ?

Question : Try preparing temporary mounts of leaf peels, tip of roots of onion or even peels of onions of different sizes : After performing the above activity, let us see what the answers to the following questions would be: Do all cells look alike in terms of shape and size?

Question : Try preparing temporary mounts of leaf peels, tip of roots of onion or even peels of onions of different sizes : After performing the above activity, let us see what the answers to the following questions would be: Do all cells look alike in structure?

Question :Trees with fine needle-like leaves are usually found in the hilly areas. They are called :

Question : Transportation of water takes place through ……& ……

Question : Transpiration takes place through…………. .

Question : Tracheal system is not developed in butterflies.

Question : Trachea begins from the …………..

Question : Trachea are the respiratory organ of Annelida.

Question : To which directional stimuli do (a) roots resond (b) shoots respond?

Question : To which phylum do the first triploblastic animals of the animal kingdom belong?

Question : To which phyllum does jellyfish belong?

Question : To which group would a plant that produces flowers belongs?

Question : To which group does the following organism belong and give one reason for each : (a) Cyanobacteria (b ) Euglena (c) Ulothrix

Question : To which division does marchantia belong:

Question : To what is photoperido related?

Question : To what are cultivation practices and crop yield related?

Question : To study biodiversity, visit nearby pond, field, orchard, forest, zoologicial part or wildlife sanctuary, etc and collect information and pictures of animals and plants you find there.

Question : To prevent the entry of food into the trachea, the opening is guarded by......................

Question : To observe cells in an onion peel, we must prepare the slide by mounting on it...

Question : To ensure maximum utilisation or nutrients, spreading of pest and diseases to crop in the field……metbod is used. (mixed cropping, inter cropping, rotation of crops)

Question : Tissue fluid that reaches the lymph capillaries is called ……

Question : Through what does Japanese encephalitis spread ?

Question : Through what is AIDS spread ?

Question : Through ……...infectious agents are introduced in the body and immunity is developed.

Question : Three types of manures.

Question : Three factors on which cultication practices and crop yield depend.

Question : Think of one change you would wish for in your surroundings in order to avoid any of/most of the above illnesses.

Question : They synthetic preservatives do not delay the microbial growth and do not keep the food safe for long duration .

Question :There is some degree of tissue formation in the phylum....... . (Porifera, Platyhelminthes, Coelenterata)

Question : There is plentyhof scope for fisheries in our country.

Question : There is a need for sustainable practices in agriculture and animal husbandry.

Question : There are signs of ……...always present around the curved bacteria responsible for peptic ulcers.

Question : The virus, causing Japanese encephalitis (brain fever) enters through…………... (mosquito, air, water)

Question : The valves of the left ventricle is the tickest one. What may be its reason?

Question : The upper lip pf cockroach is called

Question : The undefined nuclear region, containing only nucleic acids, in the cells of bacteria included in prokaryotes and blue-green algae is called ....... (nucleold, nucleolus, nucleoplasm)

Question : The umbrella-like spherical part of the button mushroom is ....

Question : The two major category of life are …………… and………..

Question : The tropic movement that helps the climbing vines to find a suitable support is…………

Question : The tissue composed of living thin walled polyhedral cell is ______