Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

15501.

Question : Make a tabular column showing types of terrestrial plants and their environmental adaptation with examples.

Answer»

SOLUTION :
15502.

Question : make a list of he organelles that function as cytoskeleton.

Answer»

Solution :Endoplasmic RETICULUM, MICROTUBULES, MICROFILAMENTS, intermediate FIBRES.
15503.

Question : Make a list of aquatic plants and their environmental adaptation with an example.

Answer»

SOLUTION :
15504.

Question : Make a list of algae and fungi that have commercial value as source of food, chemicals, medicines and fodder.

Answer»

Solution :Some algae of commercial importance are :
(1) Agar : It is derived from red algae Gelidium and GRACILARIA.
Use : It is used as culture medium in Laboratory.
(2) Algin and carrageen : Algin is derived from brown algae and carrageen is derived from red algae.
Use: It is used as gelling agent in food and in medical DRESSING.
(3) Food : MANY species of Porphyra, Laminaria, Sargassum.
Use : These marine algae are used as food items especially in the East Asian nation.
(4) Some brown algae like Fucus, Sargassam, Laminaria, Macrocystis and Rhodymenia are important fodder for cattle.
(5) Alginic acid is a phycocolloid obtained from a number of brown algae such as Alaria, Macrocystis, Ascophyllum, Laminaria. It is used as emulsifier, thickener, gelating agent in toothpastes, shaving CREAMS, icecreams, emulsion paints, shampoo etc.
(6) Fucus and Laminaria are rich in iodine.
(7) Some algae like Corallina, Polysiphonia have MEDICINAL properties.
(8) Some protein rich algae like chlorella and spirullina are used as food supplements by sailors and space travellers.
(9) The algae Gelidium and Gracilaria are used to produce agar which is used in preparation of ice cream and jellies.
Some fungi of commercial importance :
(1) Medicine : The fungus penicillium notatum is used for producing antibiotics of penicillin group.
(2) Food processing : Yeast has been in use since ages for fermentation. Alcoholic beverages and bakery items are made because of fermentation by yeast.
(3) Food : Some varieties of Agaricus are used as food in many countries.
15505.

Question : Make a labelled diagram of V.S mammalian tooth.

Answer»
15506.

Question : Make a diagrammatic sketch of human double circulation, Label the three associated organs and any one blood vessel.

Answer»

SOLUTION :
15507.

Question : Majority of members are decomposers of litter and help in mineral recycling in this class of fungus

Answer»

Ascomycetes
Deuteromycetes
Phycomycetes
BASIDIOMYCETES

ANSWER :A
15508.

Question : Major structural components of Golgi apparatus are

Answer»

Tubules
Vesicles
Cisternae
All

ANSWER :C
15509.

Question : Majorsite for the synthesis of lipids

Answer»

ROUGH ER
SMOOTH ER
Centriole
Lysosome

Solution :Smooth ER
15510.

Question : Major site for lipid synthesis in a cell is

Answer»

RER
SER
MITOCHONDRIA
NUCLEUS

ANSWER :B
15511.

Question : Major protein of bloodplasma

Answer»

FIBRINOGEN
GLOBULIN
ALBUMIN
All of these

Answer :D
15512.

Question : Major pigments in the members of phaeophyceae

Answer»

Chlorophyll-a and B only 
Chlorophyll-a, C and fucoxanthin
Chlorophyll-a, d and phycoerythrin
None of these 

ANSWER :B
15513.

Question : The protein present in the thick filament is

Answer»

tropomyosin
myosin
ACTIN
troponin

Solution : actin
15514.

Question : Major photosynthetic planktons are

Answer»

CHRYSOPHYTES
DINOFLAGELLATES
GREEN algae
1 and 2

Answer :D
15515.

Question : Major mineral constituent of cell membrane is

Answer»

Calcium
Phosphorus
Sulphur
Nitrogen

Answer :B
15516.

Question : Major packaging material of chromosome is

Answer»

DNA
RNA
HISTONES
All

ANSWER :A
15517.

Question : Major limiting factor for photosyntesis is

Answer»

LIGHT
`CO_(2)`
TEMPERATURE
Water

Answer :B
15518.

Question : Major function of epiblema is. . . . . . . . . .

Answer»

TRANSPORT
Support
Protection
CONDUCTION of FOOD

ANSWER :C
15519.

Question : Maize and ........... are monoecious plants .............. is not possible but .......... is possible.

Answer»


ANSWER :CASTOR, XENOGAMY, GEITONOGAMY
15520.

Question : Maize grain usually called as a fruit and not a seed. Why ?

Answer»

Solution :MAIZE grain is a SINGLE seeded fruit in which the seed covering or TESTA is fused with PERICARP or fruit wall. A MICROPYLE is not found but base of style is present.
15521.

Question : Maize generates resistance against stem borers by having

Answer»

LOW aspartic ACID, HIGH nitrogen and SUGAR content
low aspartic acid and sugar but high nitrogen content
high aspartic acid, and nitrogen but low sugar content
high aspartic acid, low nitrogen and sugar content

Answer :D
15522.

Question : Mainly which of the following hormones control menstrual cycle in human being

Answer»

FSH, LH, ESTROGEN
oxytocin
PTH
ACTH

SOLUTION :FSH, LH, Estrogen
15523.

Question : Main function of Henle's loop is

Answer»

PASSAGE of urine
filtration of blood
formation of urine
conservation of WATER

15524.

Question : Main function of uriniferous tubules is .............

Answer»

Concentration of URINE
Passage of urine
Reabsorption of USEFUL substances from glomerular filtrate
Removal of urea and other waste from BLOOD

SOLUTION :Concentration of urine
15525.

Question : Main function of enterokinase is:

Answer»

conversion of CASEIN into paracasein
conversion of PEPSINOGEN into pepsin
conversion of TRYPSINOGEN into TRYPSIN
conversion of trypsin into trypsinogen

Solution :conversion of trypsinogen into trypsin
15526.

Question : Main arena of various types of activities of a cell is

Answer»

Nucleus
Mitochondria
CYTOPLASM
Chloroplast

Solution :Cytoplasm
15527.

Question : Magnitude of primary productivity is affected by

Answer»

TEMPERATURE, AVAILABILITY of NUTRIENTS
Solar RADIATIONS available, Availability of nutrients
Photosynthetic capacity of producers
All of these

Answer :D
15528.

Question : Magnesium is an essential nutrient because it is

Answer»

required in LARGE quantity
absorbed by the plant
not replaced by ANOTHER element
found in the ash analysis

ANSWER :C
15529.

Question : Magnesium deficiency symptoms are often characterized by chlorosis and reduced photosynthetic rates. What is the main reason for these symptoms?

Answer»

SOLUTION : Poor development of green plastids (CHLOROPLAST)since magnesium is an INTEGRAL PART of the chlorophyll MOLECULE
15530.

Question : Mad cow disease is caused by______

Answer»

viroids
virusoids
PRIONS
VIRUSES

ANSWER :C
15531.

Question : Macula maintains

Answer»

static EQUILIBRIUM
dynamic equilibrium
both (a) and (b)
None of these

Solution :Maculae detect changes in the BODY with RESPECT to gravity (static equilibrium) and in the movement in ONE direction (linear ACCELERATION).
15532.

Question : Macula densa cells get stimulated by

Answer»

DECREASED `Na^(+)`
Decreased `K^(+)`
Alteration in transmural PRESSURE
Hypovolemia

ANSWER :A
15533.

Question : Macrophages and leucocytes exhibit

Answer»

Cilliary movement
FLAGELLAR movement
Amoeboid movement
GLIDING movement

ANSWER :C
15534.

Question : m RNA is synthesized on DNA template in which of the following direction

Answer»

`5' RARR 3'`
`3' rarr5'`
Both DIRECTION
Any direction

Answer :A
15535.

Question :Lysozyme kills bacteria by destroying

Answer»

DNA
Lipid bilayers
CELL wall
Mitochondrial enzymes

Answer :C
15536.

Question : Lysozymes are found in ............. .

Answer»

SALIVA
TEARS
(a) and (B) both
MITOCHONDRIA

SOLUTION :N/A
15537.

Question : Lysosomes originate from____

Answer»

MITOCHONDRION
Nucleus
ER
GOLGI BODIES

Solution :Golgi bodies
15538.

Question : Lysosomes function in :

Answer»

PROTEIN synthesis
lipid synthesis
INTRACELLULAR digestion
PROCESSING and packaging

Solution :intracellular digestion
15539.

Question : State whether th following statement is true or false. Lysosomes convert cellular polymers to monomers.A. TrueB. False

Answer»


ANSWER :TRUE
15540.

Question : Lysosomes contain

Answer»

Hormone
Lytic enzyme
Hydrolytic enzyme
Useful material

Answer :C
15541.

Question : Lysosomes are produced by the :

Answer»

VACUOLES
NUCLEUS
MITOCHONDRIA MET
Golgi APPARATUS

Solution :Golgi apparatus
15542.

Question : Lysosomes are known as ''Suicidal bags''. Explain it with labeled diagram.

Answer»

Solution :1. Lysosomes were discovered by Christian de Duve (1953) , these are KNOWN as SUICIDAL bags.
2. They are spherical bodies enclosed by a single unit membrane. They are found in eukaryotic cell. Lysosomes are small vacuoles formed when small pieces of golgi BODY are pinched off from its tubules.
3. They contain a variety of hydrolytic enzymes, that can digest material within cell. The membrane around lysosome prevent these enzymes from digesting the cell itself
15543.

Question :Lysosomes are cell organelles which contain numerous.......... enzymes.

Answer»

SOLUTION :HYDROLYTIC
15544.

Question : Lysosomes are commonly called……..

Answer»

SOLUTION :SUICIDAL BAGS.
15545.

Question : Why Lysosomes are also called suicidal bags.

Answer»

Solution :Lysosome is produced from GOLGI apparatus. It contains a layer of lipoproteins around it.
Lysosome possesses different digestive enzymes like HYDROLASE, Lipase and Proteases.
These enzymes are capable of digesting any biomolecules.
The enzymes present in lysosome can not be DIGESTION effective unless the membrane around Lysosome unbroken. But if this membrane breaks and enzymes are released from Lysosome then all organelles of cell are digested and the cell is destroyed.
Therefore Lysosome is called suicidal BAG.
15546.

Question : Lymph is a colourless fluid.

Answer»


ANSWER :TRUE
15547.

Question : Lysigneous cavity is seen in

Answer»

CITRUS
EUCALYPTUS
CYCAS
Both 1 and 2

Answer :D
15548.

Question : Lysigenous cavity is present in monocot stem.

Answer»


ANSWER :TRUE
15549.

Question : Lysergic acid diethylamide is a strong drug obtained from

Answer»

ATROPA BELLADONNA
CLAVICEPS purpurea
PAPAVER somniferum
Erythroxylum coca

Answer :B
15550.

Question : Lysigenous cavities present in vascular bundles of

Answer»

MONOCOT STEM
DICOT ROOT
Dicot
Dicot leaf

Answer :A