22339 + Interview Questions in Biology in Class 11 Page 312 InterviewSolution

15551.	Question : Lymphoid tissue is found in
Answer» THYMUS tonsils LYMPH NODES all of these SOLUTION :lymph nodes

Discussion

15552.	Question : Lymphocytes that inhibit the development and proliferation of T and B cell are
Answer» B CELLS SUPPRESSOR T cells macrophages neutrophils ANSWER :B

Discussion

15553.	Question : Lymphoid progenitors originate in
Answer» LIVER Spleen LYMPH NODES BONE marrow Answer :D

Discussion

15554.	Question :Lymphocytes that assist in the regulation and coordination of the immune response are
Answer» B CELLS NK and B cells helper T cells PLASMA cells ANSWER :C

Discussion

15555.	Question : Lymph (nodes) glands form.........
Answer» HORMONES LYMPHS ANTIGENS ANTIBODIES SOLUTION :Antibodies

Discussion

15556.	Question : Lymph is colourless bebcause
Answer» WBC are ABSENT WBC are present HAEMOGLOBIN is absent RBC are absent SOLUTION :Haemoglobin is absent

Discussion

15557.	Question : Lymph hearts open into these veins in frog
Answer» subscapular veins and femoral veins supra scapular veins and femoral veins femoral veins and SCIATIC veins subscapular veins and suprascapular veins ANSWER :A

Discussion

15558.	Question :Lymph differs from blood in the absence of:
Answer» RBC WBC PROTEINS PLASMA SOLUTION :RBC

Discussion

15559.	Question : Lymph :
Answer» Solution :The colourless liquid having other COMPONENTS of food except protein and RED blood CELLS is called LYMPH

Discussion

15560.	Question : Lymph capillaries of intestinal villi are called
Answer» LYMPHATIC ducts lymphatic venels lacteals all the above ANSWER :C

Discussion

15561.	Question : Lungs in frog are
Answer» Distensible, pinksh, saclike Distensible, pinksh and SOLID Distensible, pinksh and SPONGY Distensible, ROSY and spongy ANSWER :A

Discussion

15562.	Question : Lungs expel...
Answer» `CO_2` `H_2 O` `CO_2` and WATER `CO_2` and water VAPORS SOLUTION :`CO_2` and water vapors

Discussion

15563.	Question : Lungs have a large number of narrow tubes called
Answer» alveoli bronchioles bronchi tracheae

Discussion

15564.	Question : Lungs have a number of alveoli for
Answer» Having spongy texture and PROPER shape More SURFACE area for DIFFUSION of gases More SPACE for increasing More nerve supply Solution :More surface area for diffusion of gases

Discussion

15565.	Question : Lungs do not collapse between breaths some air always remains in the lungs which can never be expelled because
Answer» There is a positive intrapleural pressure Pressure in the LUNGS in HIGHER than the ATMOSPHERIC pressure. There is a negative pressure in the lungs. There is a negative interapleural pressure pulling at the LUNG walls. Answer :D

Discussion

15566.	Question : Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration.
Answer» INSPIRATORY RESERVE VOLUME Tidal Volume Expiratory Reserve Volume RESIDUAL Volume Solution :Residual Volume

Discussion

15567.	Question : Lungs are enclosed in
Answer» perichondrium pericardium pleural membrane peritoneum. Solution :The LUNGS are covered in a membrane CALLED pleural membrane. The OUTER covering is called parietal pleura and the INNER covering is called VISCERAL pleura.

Discussion

15568.	Question : Lungs are
Answer» Thin-walled and ELASTIC Thick-walled and inelastic Thick-walled and elastic Thin-walled and inelastic SOLUTION :LUNGS are a pair of elongated, thin-walled , elastic, pink-coloured sacs present in the THORAX region of frog.s body

Discussion

15569.	Question : Lung is enclosed by "_____________" membrane.
Answer» ANSWER :PLEURAL

Discussion

15570.	Question : Luminal and extra luminal compartments in the intracellular space of a cell distiguished by the presence of
Answer» MITOCHONDRIA ENDOPLASMIC reticulum Ribosomes CYTOSKELETON ANSWER :B

Discussion

15571.	Question :Lumbar vertebrae are located in ............
Answer» REGION Thorax ABDOMINAL region NECK Hip region Solution :Abdominal region Neck

Discussion

15572.	Question : Lumbar vertebrae are found in
Answer» neck REGION abdominal region hip region thorax Solution :There are five LUMBAR FOUND in the abdominal region in humans. The EXTEND from the twelth THORACIC vertebra down to the sacral vertebrae.

Discussion

15573.	Question : ltBrgt Match the columns I and II, and choose the correct combination from the options given.
Answer» a-3,b-4,c-1,d-2,e-5 a-2,b-3,c-5,d-2,e-4 a-3,b-5,c-1,d-2,e-4 a-2,b-4,c-3,d-1,e-5 Solution :

Discussion

15574.	Question : Lowest levelof organistation among eumetazoans is
Answer» tissue LEVEL CELLULAR level organ - system level tissue -organ level ANSWER :A

Discussion

15575.	Question : Lowest category in both plant & animal kingdom is
Answer» Genus SPECIES FAMILY Order ANSWER :B

Discussion

15576.	Question : Low level of progesterone and estrogen in blood stimulate
Answer» FSH-RH production LH production GH production all of these Solution :When secretion of hormones is under the CONTROL of factors or other hormones, it is called the feedback control. If the level of progeterone and estrogen is low in the blood, it stimulates the hypothalamus to secrete more FSH-RH which RESULTS in INCREASED production of FSH from anterior pituitary which is turn stimulates the increased secretion of estrogen and PROGESTERONE from ovary.

Discussion

15577.	Question : Loss or excretion of water in the form of liquid droplets from the margins and tips of leaves is called
Answer» transpiration guttation bleeding precipitation. Solution : The loss or EXCRETION of water in the form of liquid droplets from the LEAVES and other parts of uninjured or intact plant is called guttation. It was first studied by Bergerstein in `1887.` All plants do not show guttation It is restricted to about `345` GENERA of herbaceous and some woody plants. Common examples are garden nasturtium, oat and other cereals, balsam, tomato cucurbits Guttation takes place through special structures called hydathodes. They are USUALLY found on the margins and tips of the leaves.

Discussion

15578.	Question : Loss of water in the form of vapours from the living tissues of aerial plant parts is called
Answer» transpiration guttation bleeding precipitation. Solution : the LOSS of WATER in the vapour form from the exposed parts of a plant is called transpiration the loss of water due to transpiration is quite high. It is `2` litres per day in sunflower `36-45` litres in apple and UPTO `1` tonne per day in elm TREE.

Discussion

15579.	Question : Loss of water from the plants in the form of vapour state is known as:
Answer» guttation imbibition transpiration translocation Answer :C

Discussion

15580.	Question : Guttation takes place through
Answer» hydathodes stomata cuticle bark

Discussion

15581.	Question : Loop of Henle is associated with
Answer» EXCRETORY SYSTEM RESPIRATORY system reproductive system DIGESTIVE system ANSWER :A

Discussion

15582.	Question : Loop of Henle in mammals helps in formation of
Answer» DILUTE urine URIC ACID concentrated urine UREA ANSWER :C

Discussion

15583.	Question : Look at leaves of the same plant on the shady side and compare it with the leaves on the sunny side or compare the potted plants kept in the sunlight with those in the shade. Which of them has leave that are darker green ? Why ?
Answer» SOLUTION :The COLOUR of leaves of a plant kept in SUNLIGHT will be dark green because chlorophyll is SYNTHESIZED in presnece of sunlight while this doesn.t orrur fast in DARKNESS.

Discussion

15584.	Question : Look at leaves of the same plant on the shady side and compare it with the leaves on the stinny side. Or, compare the potted plants kept in the sunlight with those in the shade. Which of them has leaves that are darker green ? Why?
Answer» SOLUTION :The LEAVES on shaded side appear dark green in colour because the CHLOROPLASTS of mesophyll CELLS are irregularly arranged. However in strong sunlight they appear lighter green as they lie towards VERTICAL walls.

Discussion

15585.	Question : Longitudinalgrowthrefersto …………..
Answer» Primarygrowth SECONDARY GROWTH TERTIARY growth ABNORMAL growth ANSWER :A

Discussion

15586.	Question : Longitudinal binary fission is found in
Answer» Amoeba Paramecium Euglena None ANSWER :C

Discussion

15587.	Question : Longest plant cell is
Answer» Flax fibers of LINUM FIBER of Gossypium ACETABULARIA RAMIE fibers of Boehmeria Answer :D

Discussion

15588.	Question : Longest phloem fibres are seen in
Answer» Boehmeria LINUM CANNABIS Dracaena Answer :A

Discussion

15589.	Question : Longest part of the cell cycle is ____
Answer» PROPHASE `G_1` Phase INTERPHASE Sphase Solution :Interphase

Discussion

15590.	Question : Long, flattened and usually unbranched units arranged in parallel stacks in endoplasmic reticulum are called :
Answer» Cisternae Cristae Vesicles Tubules Answer :A

Discussion

15591.	Question : Long filamentous threads protruding at the end of a young cob of maize are
Answer» Anthers Styles OVARIES HAIRS ANSWER :B

Discussion

15592.	Question : Long distance transport of substances within a plant can not be done byb diffusion alone. Diffusition is a slow processs. The movement of am molecule across a typical plant cell about 50mum takes approximately
Answer» 2.5 minutes 2.5 hours 2.5 second 5.0 minutes Solution :LONG distance TRANSPORT of substances within a plant cannot be done by diffusion ALONE. Diffusion is a SLOW process. The movement of a molecule across a TYPICAL plant cell about 50` mum` takes approximately 2.5 seconds

Discussion

15593.	Question : Long exposure to dust gives rise to innflammation leading to………
Answer» SOLUTION :FIBROSIS.

Discussion

15594.	Question : Long distance transport of organic compounds in a plant from a source to a site is known as ……………………...
Answer» SOLUTION :traniocation of SOLUTES

Discussion

15595.	Question : Long bones with air cavities occur in
Answer» APTENODYTES CORVUS Pteropus Bungarus ANSWER :B

Discussion

15596.	Question : Long distance, competitve runners are usually small and wiry and run more slowly than sprinters, who run much shorter distances and generally have a loarger bulk of nuscles. Which of the following best explains the differences between the two types of runners?
Answer» Long distance runners run more slowly because lactic acid quickly builds up in muscels and causes FATIGUE. Sprinters increase the oxygen supply to each muscle, enough for lactic acid to build up in their muscles. The large muscels of sprinters increase the oxygen supply to each muscle, preventing lactic acid from forming. Sprinters do not run for long enough for sufficient lactic acid to build up in their muscles therefore they can have large muscles for more power. By being LIGHTER and RUNNING more slowly long distance runners ensure that their muscles receive enough oxygen for aerobic respiration. sprinters run faster because their large muscles have more blood running through them to stop anaerobic respiration from taking PLACE. Long distance runners run more slowly because they are using the energy from anaerobic respiration, which does not produce as MUCH ATP as aerobic respiration. Solution :N//A

Discussion

15597.	Question : Long bones of birds are
Answer» not OSSIFIED pneumatic cartilaginous TOTALLY solid ANSWER :B

Discussion

15598.	Question : Long Bones in birds are hollow with (pneumatic)
Answer» SOLUTION :REACTIVITIES

Discussion

15599.	Question : Locusta is gregarious pest/ living fossil
Answer» SOLUTION :GREGARIOUS PEST

Discussion

15600.	Question : Locomotory structures in amoeboid protozoans are
Answer» Flagella Cilia PSEUDOPODIA MUCILAGE ANSWER :C

Discussion

Explore topic-wise InterviewSolutions in .

Question : Lymphoid tissue is found in

Question : Lymphocytes that inhibit the development and proliferation of T and B cell are

Question : Lymphoid progenitors originate in

Question :Lymphocytes that assist in the regulation and coordination of the immune response are

Question : Lymph (nodes) glands form.........

Question : Lymph is colourless bebcause

Question : Lymph hearts open into these veins in frog

Question :Lymph differs from blood in the absence of:

Question : Lymph :

Question : Lymph capillaries of intestinal villi are called

Question : Lungs in frog are

Question : Lungs expel...

Question : Lungs have a large number of narrow tubes called

Question : Lungs have a number of alveoli for

Question : Lungs do not collapse between breaths some air always remains in the lungs which can never be expelled because

Question : Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration.

Question : Lungs are enclosed in

Question : Lungs are

Question : Lung is enclosed by "_____________" membrane.

Question : Luminal and extra luminal compartments in the intracellular space of a cell distiguished by the presence of

Question :Lumbar vertebrae are located in ............

Question : Lumbar vertebrae are found in

Question : ltBrgt Match the columns I and II, and choose the correct combination from the options given.

Question : Lowest levelof organistation among eumetazoans is

Question : Lowest category in both plant & animal kingdom is

Question : Low level of progesterone and estrogen in blood stimulate

Question : Loss or excretion of water in the form of liquid droplets from the margins and tips of leaves is called

Question : Loss of water in the form of vapours from the living tissues of aerial plant parts is called

Question : Loss of water from the plants in the form of vapour state is known as:

Question : Guttation takes place through

Question : Loop of Henle is associated with

Question : Loop of Henle in mammals helps in formation of

Question : Look at leaves of the same plant on the shady side and compare it with the leaves on the sunny side or compare the potted plants kept in the sunlight with those in the shade. Which of them has leave that are darker green ? Why ?

Question : Look at leaves of the same plant on the shady side and compare it with the leaves on the stinny side. Or, compare the potted plants kept in the sunlight with those in the shade. Which of them has leaves that are darker green ? Why?

Question : Longitudinalgrowthrefersto …………..

Question : Longitudinal binary fission is found in

Question : Longest plant cell is

Question : Longest phloem fibres are seen in

Question : Longest part of the cell cycle is ____

Question : Long, flattened and usually unbranched units arranged in parallel stacks in endoplasmic reticulum are called :

Question : Long filamentous threads protruding at the end of a young cob of maize are

Question : Long distance transport of substances within a plant can not be done byb diffusion alone. Diffusition is a slow processs. The movement of am molecule across a typical plant cell about 50mum takes approximately

Question : Long exposure to dust gives rise to innflammation leading to………

Question : Long distance transport of organic compounds in a plant from a source to a site is known as ……………………...

Question : Long bones with air cavities occur in

Question : Long distance, competitve runners are usually small and wiry and run more slowly than sprinters, who run much shorter distances and generally have a loarger bulk of nuscles. Which of the following best explains the differences between the two types of runners?

Question : Long bones of birds are

Question : Long Bones in birds are hollow with (pneumatic)

Question : Locusta is gregarious pest/ living fossil

Question : Locomotory structures in amoeboid protozoans are