4951 + Interview Questions in Biology in Class 10 Page 53 InterviewSolution

2601.	Question : Name a hormone secreted by Pituitary.
Answer» Solution :PITUITARY secretes growthhormone. It regulates GROWTH and DEVELOPMENT of the body.

Discussion

2602.	Question : Name a hormone secreted by Pancreas.
Answer» SOLUTION :Pancreas secretes hormone INSULIN. It helps in REGULATING the BLOOD sugar leve.

Discussion

2603.	Question : Name a greenhouse gas. What happens when its amount increases in the atmosphere?
Answer» SOLUTION :`CO_2`. The amount of `CO_2` increases in the atmosphere will LEAD to global warming and CLIMATE change.

Discussion

2604.	Question : Name a few brain diseases.
Answer» Solution :(a) Alzheimer.s disease (DEVELOP, as we AGE) (b) Parkinson.s disease (c ) AMYOTROPHIC Lateral SCLEROSIS (ALS)

Discussion

2605.	Question : Name a device that helps to maintain a potential difference across a conductor .
Answer» ELECTRIC CELL Voltmeter Resistor VARIABLE Resistor Answer :C

Discussion

2606.	Question : Name a common nutrient that is absorbed in the small intestine and reabsorbed by the kidney tubules.
Answer» Solution :Nutrient absorbed by small intestine and also reabsorbedby KIDNEY TUBULES is Amino ACIDS, GLUCOSE and MINERAL ions.

Discussion

2607.	Question : Myopia or nearsightedness is a defect of eyes in which
Answer» the DIAMETER of EYEBALL is longer than usual and the image is formed slightly in front of RETINA the diameter of eyeball is normal but the image is formed at the blind spot the diameter of the eyeball is longer and the image is formed slightly behind the retina DUE to faults lens the curvature of the cornea is irregular so that only some portion of the object is seen properly Answer :A

Discussion

2608.	Question : Myoglobin is found in
Answer» WHITE fibres red fibres can be TRACED in both CARDIAC MUSCLES only Answer :B

Discussion

2609.	Question : Mutations used in agriculture are
Answer» LETHAL and recessive artificially INDUCED and recessive lethal and dominant none of the above Answer :B

Discussion

2610.	Question :Mutation is a sudden inheritable change in the nucleus sequence of DNA in a organism.
Answer» Solution :Correct statement: Mutation is a sadden HERITABLE change in the nucleotide sequence DNA in an ORGANISM.

Discussion

2611.	Question : Mutations are generally
Answer» recessive codominant incompletely dominant dominant Answer :A

Discussion

2612.	Question : Mutations are usually induced by
Answer» GAMMA RAYS alpha rays BETA ray visible light Answer :A

Discussion

2613.	Question : …………………mutation is the changes occuring in nucleotide sequence of a gene.
Answer» SOLUTION :GENE or POINT

Discussion

2614.	Question : Mutation is generally ____ to animals.
Answer» SOLUTION :BENEFICIAL

Discussion

2615.	Question :Mutation is
Answer» a change that is inherited a change, which AFFECTS the parents only but never inherited a change, which affects the offspring of F2 generation only a factor responsible for plant growth Answer :A

Discussion

2616.	Question : Mutation can occur due to X-rays
Answer» SOLUTION :aquired , LAMARCK

Discussion

2617.	Question : Muscular contractions of alimentary canal are
Answer» circulation deglutition peristalsis churning ANSWER :C

Discussion

2618.	Question : Muscles which are immune to fatigue ar
Answer» unstriped muscles cardiac muscles jaw muscles skeletal muscles Answer :D

Discussion

2619.	Question : Muscles develop from
Answer» mesoderm ectoderm ectoderm all the above Answer :A

Discussion

2620.	Question : Municipal corporation insists people to dispose wet wastes in green coloured dustbin and dry wastes in blue coloured dustbin for their domestic waste disposal. Municipal waste collection van collects domestic wastes only if wet and dry wastes are separated. What is the productive use of wet wastes ?
Answer» SOLUTION :Wet WASTES are used to PRODUCE fuel gas and manure.

Discussion

2621.	Question : Municipal corporation insists people to dispose wet wastes in green coloured dustbin and dry wastes in blue coloured dustbin for their domestic waste disposal. Municipal waste collection van collects domestic wastes only if wet and dry wastes are separated. What is use of dry wastes? Which concept do you think from five R's ?
Answer» Solution :PLASTIC, broken glass, metal, etc. from dry wastes are used in recycle process to synthesise FRESH plastic, glass, metal. We think about recycling CONCEPT from five R.s.

Discussion

2622.	Question : Municipal corporation insists people to dispose wet wastes in green coloured dustbin and dry wastes in blue coloured dustbin for their domestic waste disposal. Municipal waste collection van collects domestic wastes only if wet and dry wastes are separated. What does generally wet waste contains ?
Answer» Solution :Wet wastes contain FOOD ITEMS, VEGETABLE wastes, pills of fruits, etc.

Discussion

2623.	Question : Municipal corporation insists people to dispose wet wastes in green coloured dustbin and dry wastes in blue coloured dustbin for their domestic waste disposal. Municipal waste collection van collects domestic wastes only if wet and dry wastes are separated. How this system is a good practice to reduce environmental pollution ?
Answer» Solution :It HELPS in SEGREGATION of BIODEGRADABLE and non-biodegradable waste. These wastes are then properly treated for disposal. So, this system is GOOD practice to reduce ENVIRONMENTAL pollution.

Discussion

2624.	Question : Mumps is a viral disease that causes inflammation of
Answer» PAROTID gland sublingual gland submaxilary gland infra-orbital gland Answer :A

Discussion

2625.	Question : MSH produced by the pars intermedia of pituitary causes in lower vertebrates
Answer» DARKENING of skin light colouration of skin both (a) and (B) NONE of the above Answer :A

Discussion

2626.	Question : Mrs. Sharma had a complete medical check-up a few days back. The doctors diagnosed him to be HIV-positive (HIV +ve). This news spread like wildlife in the colony where he lives and also in the office where he works. The neighbours and colleagues who used to greet him with handshakes and warm hugs now tried to shun him (avoid him). They were reluctant to shake hands with him or hug him. Even Mr. Sharma's own family became indifferent towards him and started treating him badly. Mr. Sharma felt neglected and isolated by all the people around him. He went into depression. A good neighbour, Mr. Mukesh, noted that Mr. Sharma was under a lot of depression because of HIV infection. So, Mr. Mukesh met the family of Mr. Sharma and explained them all about HIV infection. He told them that HIV infection can be treated with drugs and kept under control. He also clarified various myths about HIV and AIDS. (a) What is HIV ? What is meant by saying that Mr. Sharma is HIV-positive(HIV +ve) ? (b) What are the various ways in which HIV can be transmitted ? (c ) Can HIV be contracted by shaking hands with or hugging a person infected with HIV ? Do you think HIV is the same as AIDS ? (d) What are the various ways of protection from HIV infection ? (e) Do you think people's indifference towards HIV infected person Mr. Sharma is justified ? How should we behave with such persons ? (f) What values are displayed by Mr. Mukesh in this episode ?
Answer» Solution :(a) HIV stands for Human Immunodeficiency Virus. HIV-positive means that the person has HIV infection. (b) HIV can be transmitted : (i) by having unprotected sex (without condom) with an HIV infected person. (ii) by the TRANSFUSION of HIV infected blood. (iii) by using HIV infected needles and syringes for injections. (iv) from HIV infected mother to child during pregnancy and breastfeeding. (c ) No, HIV infection cannot be contracted by shaking hands or hugging a person infected with HIV. There is no harm in staying and working with an HIV-positive person. HIV is not the same as AIDS. HIV is the virus that leads to AIDS. A person can have HIV virus for many, many years without having AIDS disease.Being HIV positive does not mean that the person has AIDS disease. (d) A person can protect himself from HIV infection : (i) by having safe sex by using a condom. (ii) by ensuring that any blood NEEDED by him is tested for HIV infection. (iii) by using new and disposable needles and syringes for getting injections. (iv) by getting tested for sexually transmitted diseases (including HIV). (e) The people's indifference (or rudeness) towards the HIV-positive Mr. SHARMA is highly unjustified. Our behaviour towards and HIV +ve person should be full of sympathy and concern for his SUFFERING and MISFORTUNE. We should help him to come out of depression and encourage him to lead a normal life by taking all the available drugs to control this infection. (f) The values displayed by Mr. Mukesh are (i) Awareness (or knowledge) that HIV infection can be treated with drugs and kept under control, and that being HIV positive is not the same as having AIDS disease,and (ii) Compassion (sympathy and conern for the suffering of others).

Discussion

2627.	Question : Mr. Bhatia wanted to buy a new refrigerator and a new air conditioner in place of old ones which were purchased ten years ago. When Mr. Bhatia went to the market to buy these items his son Ankit, who is a student of tenth standard, also went with him. Before buying the new refrigeratore and air conditioner, Ankit asked the various details from the shopkeeper and made sure that they refrigerator and air conditioner, Ankit asked the various details from the shopkeeper and made sure that they did not contain old conditioner, which was not environment-friendly. The shopkeeper told him that these items now work with the new, eco-friendly refrigerant. Mr. Bhatia was puzzled by all this discussion. When they reached home, Ankit explained everythink to his father. Ankit's father was happy at his choice.(a) What do you think were the old refrigerants used in earlier refrigerator and air conditioner ?(b) What was the harmful effect of old refrigerants to the environment if they leaked out ? (c ) What diseases could have been caused if people of the whole world had continued to use old refrigerants ? Why ? (d) Name the new refrigerant which is being used increasingly in place of old one. (e) Why is the new refrigerant being used these days not harmful to the environment ? (f) What values are displayed by Ankit in this episode ?
Answer» Solution :(a) CFCS (Chloro-Fluoro-Carbons). (b) CFCs are ozone depleting substances. So, if CFCs leaked out from refrigerators or air conditioners, they would attack the protective ozone layer high up in the atmosphere and destory it gradually. (c ) If the people of whole world continued to use CFCs, then more and more protective ozone layer in the upper atmosphere could be damaged, allowing more and more harmful ultraviolet radiations coming from the sun to PASS through it and reach the earth. These ultraviolet radiations could cause diseases such as skin cancer, eye cataract, and damage the IMMUNE system by lowering the BODY's resistance to diseases. (d) HFCs (Hydro-Fluoro-Carbons). (e) The new refrigerants (HFCs) do not attack or destory the protective ozone layer in the upper atmosphere. So, they are not harmful to the environment. (f) The values displayed by Ankit are (i) Awareness (or knowledge) that ozone-friendly refrigerants (HFCs) are now available which can be used in place of harmful CFCs, and (ii) Desire to protect the USEFUL ozone layer and prevent the harmful effects of ozone depletion.

Discussion

2628.	Question : Mowing of a grass lawn facilitate better maintenance primarily owing to
Answer» removal of APICAL dominance and promotion of LATERAL meristem WOUNDING which STIMULATE rapid regerneration removal of apical dominance and promotion of INTERCALARY meristems removal of apical dominance Answer :C

Discussion

2629.	Question : Movements of leaves of the sensitive plant Mimosa pudica is due to
Answer» thermonasty seismonasty photonasty nyctinasty Answer :B

Discussion

2630.	Question : Movements of hairs in Drosera is
Answer» photonastic thermonastic thigmonastic seismonastic Answer :C

Discussion

2631.	Question : Movement of snake is helped by
Answer» muscles head tail reduced RIBS ANSWER :A

Discussion

2632.	Question : Movement of molecules does not take place among cells
Answer» Solution :False - Each cell is made of MOLECULES. These molecules MOVE AROUND the cell in order to ACCOMPLISH metabolic reactions.

Discussion

2633.	Question : Movement of food through the oesophagus is due to
Answer» lubrication by salive. peristalsis diffusion turgor pressure Solution :Peristalsis is rythmic contraction and RELAXATION of MUSCLES of alimentary canal that propely the FOOD in downward direction.

Discussion

2634.	Question : Mountain sickness results due to
Answer» ANAEMIC hypoxia arterial hypoxia lack of SUFFICIENT RBCs lack of sufficient WBCS ANSWER :B

Discussion

2635.	Question : Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun's energy?
Answer» WIND ENERGY NUCLEAR energy biomass SOLUTION :GEOTHERMAL energy

Discussion

2636.	Question : Most of the gymnosperms have
Answer» only ANTHERIDIA both ARCHEGONIA and antheridia archegonia but not antheridia both archegonia and antheridia are ABSENT ANSWER :C

Discussion

2637.	Question : Most of the digestion and absorption of the food takes place in the .
Answer» SMALL intestine liver Stomach large intestine Answer :A

Discussion

2638.	Question : Most of the carbon dioxide in the blood is car ried in the form of
Answer» CARBONIC acid bicarbonates carbaminohaemoglobin dissolved `CO_(2)` ANSWER :B

Discussion

2639.	Question : Most mutations are beneficial.
Answer» ANSWER :T

Discussion

2640.	Question : Most fungi develop a multicellular mass of fila ments that spreads through the organic matter they are using as food. The mass is called a
Answer» mycelium sporangium hypha ascocarp ANSWER :A

Discussion

2641.	Question : Most green algae live in
Answer» FRESH water deep seas rocky coasts hot SPRINGS ANSWER :A

Discussion

2642.	Question : Most favourable land adaptation for reptiles
Answer» MOIST skin scales on BODY PULMONARY respiration none of the above ANSWER :B

Discussion

2643.	Question : Moss capsule represents
Answer» sporophyte gametophyte part of the sorus gametophore ANSWER :A

Discussion

2644.	Question : Morphologically the white fluffy edible mass in maize is
Answer» SEED COAT endosperm perisperm seed Answer :B

Discussion

2645.	Question : More than………… sacared groves have been reported in India.
Answer» ANSWER :13000

Discussion

2646.	Question : Montreal Protocol refers to
Answer» bio SAFETY of genetically modified organisms substances that DEPLETE OZONE layer persistent organic pollutants global warming and climate change ANSWER :D

Discussion

2647.	Question : Monoesrous animals have
Answer» one OVULATION each MONTH one BREEDING season in a yea one menses each month one egg Answer :B

Discussion

2648.	Question : State True or False.Monoculture enhances a large amount of biodiversity in a wide area.
Answer» SOLUTION :FALSE

Discussion

2649.	Question : Molting of skin in snakes is done of
Answer» cornified cells epidermis STRATUM germinativum Dermis Answer :A

Discussion

2650.	Question : Molluscs are
Answer» ANNULATED animals metamerically segmented animals unsegemented animals having only HEAD and TRUNK Answer :C

Discussion

Explore topic-wise InterviewSolutions in .

Question : Name a hormone secreted by Pituitary.

Question : Name a hormone secreted by Pancreas.

Question : Name a greenhouse gas. What happens when its amount increases in the atmosphere?

Question : Name a few brain diseases.

Question : Name a device that helps to maintain a potential difference across a conductor .

Question : Name a common nutrient that is absorbed in the small intestine and reabsorbed by the kidney tubules.

Question : Myopia or nearsightedness is a defect of eyes in which

Question : Myoglobin is found in

Question : Mutations used in agriculture are

Question :Mutation is a sudden inheritable change in the nucleus sequence of DNA in a organism.

Question : Mutations are generally

Question : Mutations are usually induced by

Question : …………………mutation is the changes occuring in nucleotide sequence of a gene.

Question : Mutation is generally ____ to animals.

Question :Mutation is

Question : Mutation can occur due to X-rays

Question : Muscular contractions of alimentary canal are

Question : Muscles which are immune to fatigue ar

Question : Muscles develop from

Question : Mumps is a viral disease that causes inflammation of

Question : MSH produced by the pars intermedia of pituitary causes in lower vertebrates

Question : Mowing of a grass lawn facilitate better maintenance primarily owing to

Question : Movements of leaves of the sensitive plant Mimosa pudica is due to

Question : Movements of hairs in Drosera is

Question : Movement of snake is helped by

Question : Movement of molecules does not take place among cells

Question : Movement of food through the oesophagus is due to

Question : Mountain sickness results due to

Question : Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun's energy?

Question : Most of the gymnosperms have

Question : Most of the digestion and absorption of the food takes place in the .

Question : Most of the carbon dioxide in the blood is car ried in the form of

Question : Most mutations are beneficial.

Question : Most fungi develop a multicellular mass of fila ments that spreads through the organic matter they are using as food. The mass is called a

Question : Most green algae live in

Question : Most favourable land adaptation for reptiles

Question : Moss capsule represents

Question : Morphologically the white fluffy edible mass in maize is

Question : More than………… sacared groves have been reported in India.

Question : Montreal Protocol refers to

Question : Monoesrous animals have

Question : State True or False.Monoculture enhances a large amount of biodiversity in a wide area.

Question : Molting of skin in snakes is done of

Question : Molluscs are