4951 + Interview Questions in Biology in Class 10 Page 29 InterviewSolution

1401.	Question : The medullary sheath of the nerve fibre is interrupted at intervals by
Answer» NODES of RANVIER SYNAPSES gila septa Answer :A

Discussion

1402.	Question : The mechanism of uric acid excretion in nephron is
Answer» diffusion ultrafiltraion osmosis secretion Answer :B

Discussion

1403.	Question : The mechanism of concentration of filtrate is also known as counter current mechanism. Justify the statement.
Answer» SOLUTION :(in the ascending LIMB) the out/flow RUNS PARALLEL to and in the OPPOSITE direction of the inflow in the descending limb.

Discussion

1404.	Question : The maximum possible volume of air, which can be inspiration, is called as
Answer» tidal AIR volume vital lung CAPACITY COMPLEMENTAL air volume total lung capacity ANSWER :B

Discussion

1405.	Question : The maximum amount of DDT accumulates in the body of which member of a food web?
Answer» Phytoplankton ZOOPLANKTON FISH FEEDING on plankton Bird feeding on fish ANSWER :D

Discussion

1406.	Question : The mature ovum or egg in female is elliptical in shape and has full of yolk.
Answer» SOLUTION :CORRECT Statement: The MATURE OVUM or egg is spherical in SHAPE and is always free of yolk.

Discussion

1407.	Question : The malleus is
Answer» a VERTEBRA of frog a vertebra of rabbit a BONE of fore LIMB of rabbit an ear OSSICLE in MIDDLE ear mammals Answer :D

Discussion

1408.	Question : The maleness of a child is determined by
Answer» the X CHROMOSOME in the zygote the Y chromosome in zygote the CYTOPLASM of germ cell which DETERMINES the sex sex is determined by chance Answer :B

Discussion

1409.	Question : The male sex hormone…………. is responsible for the development of secondary sexual characters.
Answer» SOLUTION :TESTOSTERONE

Discussion

1410.	Question : The male gametes in a flower and in a human are produced sperm in:
Answer» STIGMA and ovary anther and style ovary and testes radicle Solution :N//A

Discussion

1411.	Question : The male and the female gametes contain this material on the chromosomes, which transmit the characteristic traits to the next generation.
Answer» GENES CHROMOPLAST septum spores Solution :genes

Discussion

1412.	Question : The male and female cockroaches can be distinguished by their
Answer» ANTENNAE EYES ANAL cerci anal styli ANSWER :D

Discussion

1413.	Question : The majority of nitrogen oxides are released by
Answer» volcanoes BURNING of COAL combustion of GASOLINE industrial outputs ANSWER :C

Discussion

1414.	Question : The major function of Contractile Vacuole is
Answer» OSMOREGULATION EXCRETION STORAGE CIRCULATION SOLUTION :N/A

Discussion

1415.	Question : The major forest type found in India is
Answer» SUBTROPICAL DECIDUOUS TROPICAL MOIST deciduous TEMPERATE deciduous tropical deciduous Answer :D

Discussion

1416.	Question : The major constituent of vertebrate bone is
Answer» CALCIUM phosphate potassium hydroxide sodium chloride calcium carbonate Answer :A

Discussion

1417.	Question : The major concept in astrobiology is the. . . . . . . . ..
Answer» ANSWER :HABITABLE ZONE

Discussion

1418.	Question : The main purpose of rain water harvesting is to make the rain water, run on it's surface of Earth.
Answer» Solution :CORRECT statement: The main purpose of rain water HARVESTING is to make the rain water, to percolate under the ground, so as to RECHARGE the ground water LEVEL.

Discussion

1419.	Question : The main function of prolonged chewing is to rupture
Answer» membranes cell wall connective muscle BUNDLE ANSWER :B

Discussion

1420.	Question : The main function of plasma membrane
Answer» maintain cell shape and size eontrol of all cellular ACTIVITY REGULATE the flow of MATERIALS into and out of the cell store cell material Solution :N/A

Discussion

1421.	Question : The main functino of loop of Henle is the reaabsorption of water from the contents of renaltublules. In which from the following will be loop of Henle by poorly developd or even absent ?
Answer» DESERT mouse carnivorous bird freshwater fish garden bladder Answer :B

Discussion

1422.	Question : The main difference between gram positive and gram-negative bacteria resides in the composition of
Answer» cilia cell WALL cytoplasm cell MEMBRANE ANSWER :B

Discussion

1423.	Question : The main characteristic of the phylum Cnidaria is the presence of
Answer» tentacles hypostome nematocysts basal disc Answer :C

Discussion

1424.	Question : The main body of bryophyte plant is always
Answer» gametophytic sporophytic horomogonium autoecious ANSWER :A

Discussion

1425.	Question : The magnification produced by a plane mirror is +1. What does this means. An object is placed at a distance of 10cm from a convex mirror of focal length 15cm .Find the position and nature of the image.
Answer» SOLUTION :The positive, sign means IMAGE formed by a plane MIRROR is virtual and erect SINCE the magnification is 1. It means that the size of the image is equal to the size of the object. Focal length of convex mirror, f=+15cm. Object distance, u = -10 cm According to the mirror formula ` rArr 1/v = 1/f - 1/u` ` rArr 1/v = (2 + 3)/(30)` ` rArr 1/v = 5/30` ` rArr 6cm ` Magnification ` = - v/u = (-6)/(-10) = 0.6` The image is located at the distance 6 cm from the mirror on the other side of the mirror. The positive sign and value less than 1 of the magnification INDICATES that the image formed virtual and erect and diminished.

Discussion

1426.	Question : The lungs alwayscontain residual volume of air.
Answer» ANSWER :T

Discussion

1427.	Question : The loss of one more chromosome in a ploidy is called________.
Answer» TETRAPLOIDY ANEUPLOIDY Euploidy Polyploidy ANSWER :B

Discussion

1428.	Question : The loss of blood and mucous every month from vagina opening of female human being is called :
Answer» Menstruation Fertilisation Leismania None of the above. Answer :A

Discussion

1429.	Question : The loss of biodiversity may lead to loss of ......... stability.
Answer» SOLUTION :ECOLOGICAL

Discussion

1430.	Question : The loop of Henle is most highly developed in
Answer» FRESHWATER fishes salamanders desert lizards mammals Answer :D

Discussion

1431.	Question : The longest cell in the body of an animal is
Answer» osteocytes neuron chromatophores lymph corpuscles Answer :B

Discussion

1432.	Question : The list of all programs loaded in the computer are shown, when you click........ button.
Answer» Home list All programs START Solution :start

Discussion

1433.	Question : The lining of the alimentary canal has muscles that contract rhythmically resulting in _________ that pushes the food downwards .
Answer» SOLUTION :PERISTALSIS

Discussion

1434.	Question : The limited period of sexual receptive that occurs around the time of ovulation in all female mammals except humans called
Answer» MENSTRUATION luteinisation oogenesis estrous Answer :D

Discussion

1435.	Question : The life span of human WBC is normally
Answer» 12-13 DAYS 80-90 days 100-120 days 20-30 days ANSWER :A

Discussion

1436.	Question : The level of water in the sea rises and falls due to the gravitational pull of the moon on the spinning earth.
Answer» ANSWER :1

Discussion

1437.	Question : The length of the suspensor is
Answer» one-celled two-celled three-celled SIX to ten-celled ANSWER :D

Discussion

1438.	Question : The length of pollen tube depends on the distance between :
Answer» pollen GRAIN and upper SURFACE of stigma pollen grain or upper surface of stigma and ovule pollen grain in ANTHER and upper surface of stigma upper surface of stigma and LOWER part of style. Solution :N//A

Discussion

1439.	Question : The length and complexity of food chains vary greatly. Each organism is generally eaten by two or more other kinds of organisms which in turn are eaten by several other organisms. The energy that is captured by the autotrophs does not revert back to the solar input and the energy which passes to the herbivores does not come back to autotrophs. As it moves progressively through the various trophic levels it is no longer available to the previous level. One of the reasons is the use of several pesticides and other chemicals to protect our crops from diseases and pests. These chemicals are either washed down into the soil or into the water bodies. From the soil, these are absorbed by the plants along with water and minerals, and from the water bodies these are taken up by aquatic plants and animals. What is the alternative to above mentioned problem?
Answer» SOLUTION : ORGANIC FARMING.

Discussion

1440.	Question : The length and complexity of food chains vary greatly. Each organism is generally eaten by two or more other kinds of organisms which in turn are eaten by several other organisms. The energy that is captured by the autotrophs does not revert back to the solar input and the energy which passes to the herbivores does not come back to autotrophs. As it moves progressively through the various trophic levels it is no longer available to the previous level. One of the reasons is the use of several pesticides and other chemicals to protect our crops from diseases and pests. These chemicals are either washed down into the soil or into the water bodies. From the soil, these are absorbed by the plants along with water and minerals, and from the water bodies these are taken up by aquatic plants and animals. Chemicals are used as pesticides. How does this impact the environment ?
Answer» SOLUTION :The chemicals which are used as pesticides or fertilisers end up in the food CHAIN and ultimately into our BODIES.

Discussion

1441.	Question : The length and complexity of food chains vary greatly. Each organism is generally eaten by two or more other kinds of organisms which in turn are eaten by several other organisms. The energy that is captured by the autotrophs does not revert back to the solar input and the energy which passes to the herbivores does not come back to autotrophs. As it moves progressively through the various trophic levels it is no longer available to the previous level. One of the reasons is the use of several pesticides and other chemicals to protect our crops from diseases and pests. These chemicals are either washed down into the soil or into the water bodies. From the soil, these are absorbed by the plants along with water and minerals, and from the water bodies these are taken up by aquatic plants and animals. From the information given, figure out what according to you is more appropriate - Food chain or Food web ?
Answer» Solution :According to me, Food web is more accurate WAY of DEFINING relationships in an ecosystem as one ORGANISM occupies more than one trophic LEVEL and is also a food of more than one organisms

Discussion

1442.	Question : The length and complexity of food chains vary greatly. Each organism is generally eaten by two or more other kinds of organisms which in turn are eaten by several other organisms. The energy that is captured by the autotrophs does not revert back to the solar input and the energy which passes to the herbivores does not come back to autotrophs. As it moves progressively through the various trophic levels it is no longer available to the previous level. One of the reasons is the use of several pesticides and other chemicals to protect our crops from diseases and pests. These chemicals are either washed down into the soil or into the water bodies. From the soil, these are absorbed by the plants along with water and minerals, and from the water bodies these are taken up by aquatic plants and animals. What according to you would be the pyramid of energy life?
Answer» Solution : It WOULD be erect, with PRODUCERS at the BASE with MAXIMUM energy and top CARNIVORES with least.

Discussion

1443.	Question : The leguminous plants are important in agriculture because
Answer» they NEED very Little waler to grow they are disease RESISTANT they help in nitrogen economy of the plants six CROPS of leguminous plants are harvested in a YEAR ANSWER :C

Discussion

1444.	Question : The leaves of a plant first prepare food A by photosynthesis then food A gets converted into food B. What are A and B?
Answer» SOLUTION :FOOD A `RARR` glucose, Food B `rarr` STARCH

Discussion

1445.	Question : The leaves in gymnoperms are adapted to withstand xerophytic conditions. Justify
Answer» Solution :Gymnosperms LIKE conifers have : needle SHAPED leaves to reduce surface AREA, THICK cuticle and sunken stomata to reduce water LOSS.

Discussion

1446.	Question : The leaves of a monocot plant have
Answer» RETICULATE venation swelling at the BASE PARALLEL venation All of these ANSWER :C

Discussion

1447.	Question : The least porous soil among the folJowing is
Answer» CLAY SOIL SANDY soil peaty soil LOAM soil ANSWER :A

Discussion

1448.	Question : The layer of cells that secretes enamel of tooth is
Answer» dentoblast osteoblast ameloblasts odontoblast ANSWER :D

Discussion

1449.	Question : The lateral roots of dicot plant originate from stele
Answer» Solution :False -Correct Statement: The LATERAL ROOTS of DICOT PLANT ORIGINATE from pericycle.

Discussion

1450.	Question : The larva of mosquito
Answer» BREATHES AIR respires by GILLS wriggles in WATER has all the above characteristics Answer :D

Discussion

Explore topic-wise InterviewSolutions in .

Question : The medullary sheath of the nerve fibre is interrupted at intervals by

Question : The mechanism of uric acid excretion in nephron is

Question : The mechanism of concentration of filtrate is also known as counter current mechanism. Justify the statement.

Question : The maximum possible volume of air, which can be inspiration, is called as

Question : The maximum amount of DDT accumulates in the body of which member of a food web?

Question : The mature ovum or egg in female is elliptical in shape and has full of yolk.

Question : The malleus is

Question : The maleness of a child is determined by

Question : The male sex hormone…………. is responsible for the development of secondary sexual characters.

Question : The male gametes in a flower and in a human are produced sperm in:

Question : The male and the female gametes contain this material on the chromosomes, which transmit the characteristic traits to the next generation.

Question : The male and female cockroaches can be distinguished by their

Question : The majority of nitrogen oxides are released by

Question : The major function of Contractile Vacuole is

Question : The major forest type found in India is

Question : The major constituent of vertebrate bone is

Question : The major concept in astrobiology is the. . . . . . . . ..

Question : The main purpose of rain water harvesting is to make the rain water, run on it's surface of Earth.

Question : The main function of prolonged chewing is to rupture

Question : The main function of plasma membrane

Question : The main functino of loop of Henle is the reaabsorption of water from the contents of renaltublules. In which from the following will be loop of Henle by poorly developd or even absent ?

Question : The main difference between gram positive and gram-negative bacteria resides in the composition of

Question : The main characteristic of the phylum Cnidaria is the presence of

Question : The main body of bryophyte plant is always

Question : The magnification produced by a plane mirror is +1. What does this means. An object is placed at a distance of 10cm from a convex mirror of focal length 15cm .Find the position and nature of the image.

Question : The lungs alwayscontain residual volume of air.

Question : The loss of one more chromosome in a ploidy is called________.

Question : The loss of blood and mucous every month from vagina opening of female human being is called :

Question : The loss of biodiversity may lead to loss of ......... stability.

Question : The loop of Henle is most highly developed in

Question : The longest cell in the body of an animal is

Question : The list of all programs loaded in the computer are shown, when you click........ button.

Question : The lining of the alimentary canal has muscles that contract rhythmically resulting in _________ that pushes the food downwards .

Question : The limited period of sexual receptive that occurs around the time of ovulation in all female mammals except humans called

Question : The life span of human WBC is normally

Question : The level of water in the sea rises and falls due to the gravitational pull of the moon on the spinning earth.

Question : The length of the suspensor is

Question : The length of pollen tube depends on the distance between :

Question : The leguminous plants are important in agriculture because

Question : The leaves of a plant first prepare food A by photosynthesis then food A gets converted into food B. What are A and B?

Question : The leaves in gymnoperms are adapted to withstand xerophytic conditions. Justify

Question : The leaves of a monocot plant have

Question : The least porous soil among the folJowing is

Question : The layer of cells that secretes enamel of tooth is

Question : The lateral roots of dicot plant originate from stele

Question : The larva of mosquito