22339 + Interview Questions in Biology in Class 11 Page 309 InterviewSolution

15401.	Question : Marsilea salvinia azolla are aquatic eusporangiate and heterosporous.
Answer» ANSWER :F

Discussion

15402.	Question : Mark the wrong match from the following:
Answer» BOWMAN's capsule - glomerular filtration DCT - ABSORPTION of glucose Henle's loop - CONCENTRATION of urine PCT - Absorption of `Na_(2) and K_(2)` ions Answer :B

Discussion

15403.	Question : Marrow cavity of the bone is lined by .......
Answer» SOLUTION :ENDOSTEUM

Discussion

15404.	Question : Mark the vitamin present in Rhodopsin
Answer» Vit. A Vit. B Vit. C Vit. D Solution :Rhodopsin is a pigment present in the rod cells of the retina.It consists of two components-OPSIN and retinal (=retinene).Retinal is an aldehyde of vitamin A which absorbs light FALLING on the rod and CHANGES its form and separates from the opsin component. This initiates the transmission of a NERVE impulse to the brain.Rhodopsin ALLOWS vision in dim light (night vision).

Discussion

15405.	Question : Mark the true statement among the following with reference to normal breathing
Answer» Inspiration is a PASSIVE PROCESS where as expiration is active Inspiration is a active process where as expiration is passive Inspiration and expiration are active processes Inspiration and expiration are passive processes ANSWER :A::C

Discussion

15406.	Question : Mark the second messenger in case of heart in response to parasympathetic nervous system.
Answer» CAMP CGMP `IP_3` `DG` ANSWER :B

Discussion

15407.	Question : Mark the right statement among the following
Answer» Trypsinogen is an inactive enzyme. Trypsinogen is secreted by intestinal mucosa. ENTEROKINASE is SECRETES by pancreas. Bile CONTAINS trypsin. Solution :Trypsinogen is an inactive enzyme, it becomes ACTIVE in the presence of COENZYME Enterokinase.

Discussion

15408.	Question : Mark the pair of substances among the following which is essential for coagulation of blood.
Answer» Heparin and CALCIUM IONS Calcium ions and PLATELET FACTORS Oxalates and citrates Platelet factors and heparin SOLUTION :Calcium ions and platelet factors

Discussion

15409.	Question : Mark the odd one in each series : RBC, WBC: platelets, cartilage.
Answer» SOLUTION :CARTILAGE

Discussion

15410.	Question : Mark the odd one (w.r.t second trophic level)
Answer» Wolf Grasshopper Cow Zooplanktons Answer :A

Discussion

15411.	Question : Mark the odd one in each series. salivary gland, thyroid gland, gastric gland, tear gland
Answer» SOLUTION :THYROID GLAND

Discussion

15412.	Question : Mark the odd one in each series, RBC, WBC, Platelets , cartilage.
Answer» SOLUTION :CARTILAGE

Discussion

15413.	Question : Mark the odd one in each series : Maxilla, mandible, labrum, antennae
Answer» maxilla mandible Solution :ANTENNAE

Discussion

15414.	Question : Mark the odd one in each series : Protonerna, mesothorax, metathorax, coxa
Answer» SOLUTION :PROTONEMA

Discussion

15415.	Question : Mark the odd one in each series. prothrombin, heparin, fibrinogen, thromboplastin
Answer» SOLUTION :HEPARIN

Discussion

15416.	Question : Mark the odd one in each series, Maxilla, mandible, labrum, antennae.
Answer» SOLUTION :ANTENNAE

Discussion

15417.	Question : Mark the odd one in each series : Exocrine, endocrine, salivary gland, ligament.
Answer» SOLUTION :LIGAMENT

Discussion

15418.	Question : Mark the odd one in each series, Exocrine, endocrine, salivary gland, ligament
Answer» SOLUTION :LIGAMENT

Discussion

15419.	Question : Mark the mismatched pair.
Answer» AMYLOPLAST - STORE PROTEIN granule Elaioplast - Store oils or fats Chloroplasts - CONTAIN chlorophyll pigments Chromoplasts - Contain coloured pigments other than chlorophyll Answer :A

Discussion

15420.	Question : Mark the correct statement for Gramineae
Answer» The CARPEL has two styles Spikeletes are ALWAYS in pairs PALEA is the bracteole Awn is an APPENDAGE of the palea Solution :Bracteoles modify into palea.

Discussion

15421.	Question : Mark the correct one regarding typhlosole:
Answer» Internal median fold of VENTRAL intestinal WALL EXTENDS from 20TH to 35th segments Increases surface area for absorption Decreases surface area for absorption Answer :C

Discussion

15422.	Question : Marine teleosts, undergoing putrefaction, emit sharp characteristic foul odor, which is due to the production of
Answer» Trimethylamine Hydrogen SULFIDE Ammonia LACTIC ACID ANSWER :A

Discussion

15423.	Question : Marine fishes drink sea water to …………………… .
Answer» meet their body salt requirements compensate LOSS of water from their body FLUSH out nitrogenous WASTES from their body ACHIEVE all of the above SOLUTION :achieve all of the above

Discussion

15424.	Question : Marine alga used as food
Answer» Chlorella Sargassum POLYSIPHONIA CHLAMYDOMONAS ANSWER :B

Discussion

15425.	Question : Marine algae with massive plant body are called as
Answer» ZOOSPORES APLANOSPORES Akinetes Autospores ANSWER :B

Discussion

15426.	Question : Margo is a part of
Answer» SIMPLE PIT Stomata Bordered pit Lenticel Answer :C

Discussion

15427.	Question : marginal placentation is generally found in the family
Answer» SOLANACEAE FABACEAE LILIACEAE cucurbitaceae Answer :B

Discussion

15428.	Question :Marginal placentation is a characteristic feature of legumes.
Answer» ANSWER :1

Discussion

15429.	Question :Margin of thalamus grows above ovary and fuse with ovary in
Answer» PLUM ROSE PEACH GUAVA ANSWER :D

Discussion

15430.	Question : Marchantia vegetativelypropagates by ……………………. .
Answer» tubers GEMMAE buds brood bodies ANSWER :B

Discussion

15431.	Question : Marchantia : liverworts :: funaria : .......
Answer» SOLUTION :MOSSES

Discussion

15432.	Question : Define:- Marasmus
Answer» SOLUTION :N/A

Discussion

15433.	Question : Marchantia is
Answer» Monoecious Dioecious Heterosporous Phanerogams Solution :MARCHANTIA is dioecious (male and FEMALE SEX organs PRESENT on DIFFERENT plants)

Discussion

15434.	Question : Many pulses of daily use belong to one of the families below :
Answer» Solanaceae Fabaceae Liliaceae Poaceae Solution :Fabaceae is SUBFAMILY of leguminosae family. It was first known as papilonoideae. The PLANTS of this family are source of EDIBLE pulses and edible oil. Pulses are full of PROTEIN.

Discussion

15435.	Question : Many enzymes require non- protein components for their efficient activity ' - Justify the above statement by naming the components and its types.
Answer» Solution :Many enzymes require non-protein components called cofactors for their efficient activity. Cofactors may vary from simple inorganic ions to complex organic molecules. They are of three types :inorganic ions, prosthetic GROUPS and coenzymes. 1. Holoenzyme - active enzyme with its non protein component. 2. Apoenzyme - the INACTIVE enzyme without its non protein component. 3. Inorganic ions help to increase the RATE of reaction catalysed by enzymes. Example: Salivary amylase activity is increased in the presence of chloride ions. 4. Prosthetic groups are organic molecules that assist in catalytic function of an enzyme. Flavin adenine dinucleotide (FAD) contains riboflavin (vit B2), the function of which is to accept hydrogen..Haem. is an iron - containing prosthetic group with an iron atom at its centre. 5. Coenzymes are organic compounds which act as cofactors but do not remain attached to the enzyme. The ESSENTIAL chemical components of many coenzymes are vitamins . Eg. NAD, NADP , Coenzyme A, ATP

Discussion

15436.	Question : Many elements are found in living organisms either free or in the form of compounds. One of the following is not found in living organisms. (A) Silicon (B) Magnesium (C) Iron (D) Sodium
Answer» SILICON Magnesium Iron Sodium Solution :Silicon is not FOUND in LIVING ORGANISMS.

Discussion

15437.	Question : Many discoveries in science have been accidental. This is true for plant hormones also. Can you justify this statement by giving an example ? Also what term is used for such accidental findings ?
Answer» Solution :Discovery of PLANT hormone gibberellins was made by chance. It happened by chance in rice fields. A few plants of rice were observed which were unusually taller than the normal ones. SCIENTIFIC investigation revealed, that these were infected with a fungus, known as Gibberalla fujikuroi. This fungus releases a plant hormone gibberellic acid in excess concentrations which made the plant to grow unusually tall. The TERM used for accidental finding is Serendipity which means fortunate happenstance. It was coined by Horace Walpole in 1754. He explained it as making discoveries by ACCIDENT and sagacity of THINGS, which were hot in quest of.

Discussion

15438.	Question : Many diseases can be diagnosed by observing the symptoms in the patient. Which group of symptoms are indicative of pneumonia?
Answer» DIFFICULTY in respiration, fever, chills, cough, headache Constipation, abdominal pain, CRAMPS, blood clots Nasal CONGESTION and discharge, cough, sorethroat, headache High fever, weakness, stomach pain, loss of appetite and constipation Answer :A

Discussion

15439.	Question : Many cells functions properly and divide mitoticaly even though they do not have ____
Answer» PLASMA membrane Cytoskeleton MITOCHONDRIA Plastids Solution :Mitochondria

Discussion

15440.	Question : Mango and wheta belong to division A and sub division B . A & B respectively.
Answer» SPERMATOPHYTA & ANGIOSPERMS Angiosperms & Spermatophyta Angiosperms and Poales Angiosperms & Sapindales ANSWER :A

Discussion

15441.	Question : Mango and coconut are .drupe. type of fruits. In mango, fleshy mesocarp is edible. What is the edible part of coconut ? What does milk of tender coconut represent ?
Answer» Solution :Mango and coconut are drupe FRUITS. It is produced from monocarpellary, superior ovary. It has one seed. It is DIFFERENTIATED into OUTER thin EPICARP, middle fleshy mesocarp and inner woody endoderm The EDIBLE part of coconut is endosperm . Inumature coconut indicates oily endosperm in liquid form later it gets deposited with inner carp. For see diagram section - A, Q. No. 18

Discussion

15442.	Question : Mango and coconut are "drupe' type of fruits. In Mango, the edible part is fleshy mesocarp. What does the milk of tender coconut represent?
Answer» Solution :ENDOSPERM is the liquid (MILK) potable part of tender coconut, which is RICH in NUTRIENTS and is formed as a result of TRIPLE fusion.

Discussion

15443.	Question : Mango and coconut are drupe fruits. They develop from monocarpellary superior ovaries and are one seeded. It is differentiated inot outer thin epicarp, middle fleshy mesocarp and inner stony endocarp . The edible part of coconut (Cocos nucifera) is endosperm . The milk of tender coconut represents the oily endosperm in liquid form. Later it gets deposited along the walls of endocrap and forms edible flesh.
Answer» Solution :Mango and coconut are drupe fruits. They develop from monocarpellary superior OVARIES and are one seeded. It s DIFFERENTIATED into outer thin epicarp, middle FLESHY mesocarp and inner stony endocarp. The EDIBLE part of coconut (Cocos nucifera) is endosperm. The milk of tender coconut represents the oily endosperm in liquid form. Later it gets deposited along the walls of endocarp and forms edible FLESH.

Discussion

15444.	Question : Mango and coconut are 'drupe' type of fruits. In mango fleshy mesocarp is edible. What is the edible part of coconut? What does milk of tender coconut represent ?
Answer» Solution :Edible PART is the cellular ENDOSPERM and MILK of TENDER coconut represents free NUCLEAR endosperm.

Discussion

15445.	Question : Mangifera indica Linn. Why are they written in italics?
Answer» Solution : Both the WORDS in a biological name, when HANDWRITTEN, are separately UNDERLINED, or printed in italics to INDICATE their latin origin.

Discussion

15446.	Question : Mammals living in polar-regions have more adipose tissue beneath their skin. What is the advantage?
Answer» Solution :It prevents heat loss by FORMING a heat INSULATING layer below the SKIN

Discussion

15447.	Question : Mammals originated in
Answer» Triassic period DEVONIAN period CARBONIFEROUS period SILURIAN period Answer :A

Discussion

15448.	Question : Mammary glands are modified
Answer» sebaceous glands SWEAT GLAND PREEN glands femoral glands ANSWER :B

Discussion

15449.	Question : Mammals have the ability to produce concentrated urine. Give reason
Answer» SOLUTION :Due to the PRESENCE of COUNTER current SYSTEM.

Discussion

15450.	Question : Mammals have long Henle's loop, hence they produce ................ urine.
Answer» HYPOTONIC hyperosmotic ISOTONIC NONE of the above SOLUTION :hyperosmotic

Discussion

Explore topic-wise InterviewSolutions in .

Question : Marsilea salvinia azolla are aquatic eusporangiate and heterosporous.

Question : Mark the wrong match from the following:

Question : Marrow cavity of the bone is lined by .......

Question : Mark the vitamin present in Rhodopsin

Question : Mark the true statement among the following with reference to normal breathing

Question : Mark the second messenger in case of heart in response to parasympathetic nervous system.

Question : Mark the right statement among the following

Question : Mark the pair of substances among the following which is essential for coagulation of blood.

Question : Mark the odd one in each series : RBC, WBC: platelets, cartilage.

Question : Mark the odd one (w.r.t second trophic level)

Question : Mark the odd one in each series. salivary gland, thyroid gland, gastric gland, tear gland

Question : Mark the odd one in each series, RBC, WBC, Platelets , cartilage.

Question : Mark the odd one in each series : Maxilla, mandible, labrum, antennae

Question : Mark the odd one in each series : Protonerna, mesothorax, metathorax, coxa

Question : Mark the odd one in each series. prothrombin, heparin, fibrinogen, thromboplastin

Question : Mark the odd one in each series, Maxilla, mandible, labrum, antennae.

Question : Mark the odd one in each series : Exocrine, endocrine, salivary gland, ligament.

Question : Mark the odd one in each series, Exocrine, endocrine, salivary gland, ligament

Question : Mark the mismatched pair.

Question : Mark the correct statement for Gramineae

Question : Mark the correct one regarding typhlosole:

Question : Marine teleosts, undergoing putrefaction, emit sharp characteristic foul odor, which is due to the production of

Question : Marine fishes drink sea water to …………………… .

Question : Marine alga used as food

Question : Marine algae with massive plant body are called as

Question : Margo is a part of

Question : marginal placentation is generally found in the family

Question :Marginal placentation is a characteristic feature of legumes.

Question :Margin of thalamus grows above ovary and fuse with ovary in

Question : Marchantia vegetativelypropagates by ……………………. .

Question : Marchantia : liverworts :: funaria : .......

Question : Define:- Marasmus

Question : Marchantia is

Question : Many pulses of daily use belong to one of the families below :

Question : Many enzymes require non- protein components for their efficient activity ' - Justify the above statement by naming the components and its types.

Question : Many elements are found in living organisms either free or in the form of compounds. One of the following is not found in living organisms. (A) Silicon (B) Magnesium (C) Iron (D) Sodium

Question : Many discoveries in science have been accidental. This is true for plant hormones also. Can you justify this statement by giving an example ? Also what term is used for such accidental findings ?

Question : Many diseases can be diagnosed by observing the symptoms in the patient. Which group of symptoms are indicative of pneumonia?

Question : Many cells functions properly and divide mitoticaly even though they do not have ____

Question : Mango and wheta belong to division A and sub division B . A & B respectively.

Question : Mango and coconut are .drupe. type of fruits. In mango, fleshy mesocarp is edible. What is the edible part of coconut ? What does milk of tender coconut represent ?

Question : Mango and coconut are "drupe' type of fruits. In Mango, the edible part is fleshy mesocarp. What does the milk of tender coconut represent?

Question : Mango and coconut are 'drupe' type of fruits. In mango fleshy mesocarp is edible. What is the edible part of coconut? What does milk of tender coconut represent ?

Question : Mangifera indica Linn. Why are they written in italics?

Question : Mammals living in polar-regions have more adipose tissue beneath their skin. What is the advantage?

Question : Mammals originated in

Question : Mammary glands are modified

Question : Mammals have the ability to produce concentrated urine. Give reason

Question : Mammals have long Henle's loop, hence they produce ................ urine.