22339 + Interview Questions in Biology in Class 11 Page 351 InterviewSolution

17501.	Question : Give the term for thevolume of airinhaled and exhaled duringa normal effortless breathing.
Answer» SOLUTION :TIDAL VOLUME

Discussion

17502.	Question : Give the term for the extra-nuclear rings of DNA present in the cytoplasm of Escherichia coli.
Answer» SOLUTION :PLASMIDS

Discussion

17503.	Question : Give the term for the expelling of urine out of body.
Answer» SOLUTION :MICTURITION.

Discussion

17504.	Question : Give the term for the energy required to initiate a biochemical reaction.
Answer» SOLUTION :ACTIVATION ENERGY

Discussion

17505.	Question : Given the technical terms for the following: Stamens are united in one bunch
Answer» SOLUTION :MONADELPHOUS

Discussion

17506.	Question : Given the technical terms for the following: Stamens are attached to the petals
Answer» SOLUTION :EPIPETALOUS

Discussion

17507.	Question : Given the technical terms for the following: A sterile stamen
Answer» SOLUTION :STAMINODE

Discussion

17508.	Question : Give the technical terms for the following: - (a) A sterile stamen (b) Stamens are united in one bunch (c) Stamens are attached to the petals
Answer» Solution :(a) A sterile stamen-Staminode (B) Stamens are UNITED in ONE BUNCH - Monadelphous Stamens are attached to the petals - Epipetalous (petalostemonous)

Discussion

17509.	Question : Give the symbol representing waterpotential. Also the unit in which it ismeasured.
Answer» Solution :GREEK symboly (psi) MEASUREMENT UNIT ispascals PA.

Discussion

17510.	Question : Give the site where brush-bordered cuboidal epithelium is found.
Answer» SOLUTION :PROXIMAL CONVOLUTED TUBULES of the KIDNEY.

Discussion

17511.	Question : Give the significance of presenceof turbinatesin the nasalchambers.
Answer» SOLUTION :Turbinals increasethe SURFACEAREA L of the nasalchambes forbetter AIR - conditioningsmelling .

Discussion

17512.	Question : Give the significance of glycocalyx.
Answer» SOLUTION :PROTECTION, definite shape, cellular recognition, BLOOD grouping, immuno-suppression, ETC.

Discussion

17513.	Question : Give the significance of diffusion.
Answer» Solution :(i) Helps in UNIFORM distribution of materials. (ii) Scented flowers ATTRACT the pollinating AGENTS. (iii) Helps in exchange of gases at LUNG alveoli. (IV) Transpiration in plants.

Discussion

17514.	Question : Give the sequence involved in a reflex action
Answer» Solution :Stilmulus `to ` receptor organ `-` sensory NEURON. EFFECTS organ or MUSCLE `LARR` MOTOR neuron - intermediate neuron in spinal cord.

Discussion

17515.	Question : Give the scope of cell biology.
Answer» Solution :CELL BIOLOGY covers morphology, physiology, reproduction and CHEMISTRY of cell.

Discussion

17516.	Question : Give the scientific term for the symbiotic association of a fungus with the roots of higher plant
Answer» SOLUTION :MYCORRHIZA

Discussion

17517.	Question : Give the scientific term for the specialised structure through which guttation occurs.
Answer» SOLUTION :Hydathades

Discussion

17518.	Question : Give the scientific term for the formation of blood cells in the bone marrow.
Answer» SOLUTION :HEMOPOIESIS

Discussion

17519.	Question : Give the scientific term for a cell with two haploid nuclei of different mating types
Answer» SOLUTION :DIKARYON

Discussion

17520.	Question : Give the scientific term for fruiting body of ascomycetes.
Answer» SOLUTION :ASCOCARP

Discussion

17521.	Question : Give the scientific names of the following: structure formed by the germinating fern spore.
Answer» SOLUTION :PROTHALLUS

Discussion

17522.	Question : Give the scientific names of the following: an alga with ribbon-shaped chloroplasts.
Answer» SOLUTION :SPIROGYRA

Discussion

17523.	Question : Give the scientific name of the insectivorous plant of north eastern part of India which is now an endangered species.
Answer» SOLUTION :NEPENTHES.

Discussion

17524.	Question : Give the scientific name of a species of fungus which produces a plant disease
Answer» SOLUTION :PHYTOPHTHORA infestans (LATE BLIGHT of POTATO)

Discussion

17525.	Question : Give the scientific name of a species of fungus which is used in the manufacture of ethanol.
Answer» SOLUTION :SACCHAROMYCES SP. (YEAST).

Discussion

17526.	Question : Give the scientific name of a species of fungus which is edible
Answer» SOLUTION :AGARICUS (MUSHROOM)

Discussion

17527.	Question : Give the scientific name of a species of fungus which is a source of antibiotic
Answer» SOLUTION :PENICILLIUM chrysogenum

Discussion

17528.	Question : Give the scientific importance of wildlife.
Answer» Solution :Wildlife acts as GENE BANK and provides research materials to produce NEW varieties/species.

Discussion

17529.	Question : Give the schematic representation of Calvin cycle/C_(3) pathway.
Answer» Solution :It occurs in grana of the chloroplast. It utilises the assimilatory powers i.e., ATP and `NADPH_(2)` produced in light reaction. Steps : 1. Phosphorylation 2. Carbon dioxide fixation 3. Phosphorylation and RUMP. 5. Glucose formation. NOTE : To COMPLETE a Calvin cycle, 18 ATP and 12 `NADPH_(2)` MOLECULES are required.

Discussion

17530.	Question : Give the schematic outline to show the classification of fruits.
Answer» SOLUTION :

Discussion

17531.	Question : Give the role of mitochondria ?
Answer» SOLUTION :ATP suntheiss.

Discussion

17532.	Question : Give the role of DNA present in the nucleolus.
Answer» SOLUTION :TRANSCRIPTION of RRNA.

Discussion

17533.	Question : Give the role of adhesive sites in mitochondria.
Answer» SOLUTION :JOIN the TWO mitochondrial membranes, and let PROTEINS PASS from the outer to the inner membrane.

Discussion

17534.	Question : Give the reasons for the following statements : Water along with dissolved organic and inorganic substances is excreted during the process of bleeding.
Answer» Solution :Bleeding is the EXUDATION of SAP from the injured PARTS of a PLANT.

Discussion

17535.	Question : Give the relationship between cell size and surface area/volume ratio.
Answer» Solution :SMALL SIZED CELLS have more surface area/volume ratio so have more EXCHANGING POWER.

Discussion

17536.	Question : Give the reasons for the following statements : Root pressure is also responsible for ascent of sap.
Answer» SOLUTION :Root PRESSURE develops in tracheary elements of root in plant with value ranging from 2-5 atmosphere. It is ABLE to RAISE the water up to few feets.

Discussion

17537.	Question : Give the reasons for the following statements : Process of transpiration represents the kind of diffusion of water vapours.
Answer» Solution :During the process of TRANSPIRATION water VAPOURS move from a place of higher concentration in PLANTS to the place of lower concentration in ATMOSPHERE.

Discussion

17538.	Question : Give the reasons for the following statements : Pickles, meat and fish are preserved by salting.
Answer» SOLUTION :Salting creates hypertonic condition in which fungi and BACTERIA GET KILLED due to the process of PLASMOLYSIS.

Discussion

17539.	Question : Give the reasons for the following statements : In acicular leaves like that of Pinus transpiration rate is less.
Answer» Solution :Rate of TRANSPIRATION is LESS if the LEAF AREA is very small.

Discussion

17540.	Question : Give the reasons for the following statements : Cuticle reduces the rate of transpiration.
Answer» SOLUTION :Cuticle is made up of substance CUTIN. THICKER the cuticle less will be the rate of TRANSPIRATION.

Discussion

17541.	Question : Givethe properbotanical termfor heartwoodand sap wood?
Answer» SOLUTION :Heart WOOD- DURAMEN and SAP wood- ALBURNUM .

Discussion

17542.	Question : Give the position, structural peculiarity and function of pseudostratified epithelium.
Answer» Solution :Pseudostratified epithelium LINES the trachea and primary bronchi . It is single layeredbut appears two layered as is FORMED of two TYPES of unequal sized CELLS. Cilia of tall cells beat outward to expel DUST particles or bacteria trapped in the mucus of globlet cells.

Discussion

17543.	Question : Give the points of difference between lenticels and stomata.
Answer» Solution :LENTICELS: OPENING that are found in OLD stems and roots in the cork tissues containing a number of complimentary cells and they are permanently opened pores. Stomata: Opening that are found in leaves and young stems in the epidermis and have TWO guard cells. They open and close in respinse to turgidity of their guard cells.

Discussion

17544.	Question : Give the percentageof O_(2) is atmospheric and alveolar air.
Answer» SOLUTION :ATMOSPHERIC `O_(2)` = 20.83% , ALVEOLAR `O_(2)` = 13.6%

Discussion

17545.	Question : Give the partial pressureofO_(2) in atmospheric air and alveolar air .
Answer» <P> Solution :Atmospheric `P_(O_(2))` = 159 MM HG, ALVEOLAR`P_(O_(2))` = 104 mm Hg.

Discussion

17546.	Question : Giventhe overallequationof photosynthesis.
Answer» Solution :`6CO_(2)+6H_(2)Ooverset("Light")underset("Chlorophyll")RARR C_(6)H_(12)O_(6)+6O_(2)uarr`

Discussion

17547.	Question :The human cranium is made of __________ bones.
Answer» 8 10 14 20 Solution :8

Discussion

17548.	Question : Give the nature of nuclear membrane.
Answer» SOLUTION :It is DOUBLE, POROUS, lipoproteinous and SELECTIVELY PERMEABLE

Discussion

17549.	Question : Give the necessity of respiration in living organisms.
Answer» Solution :All living ORGANISMS need energy for carrying our biological activities . This energy is obtained after the process of breathing . All livingorganisms need energy for carrying out daily life processes like absorption, transport, movement, reproduction. This energy we get from the food we have taken. But in reality the process of breathing is very muchconnected to the process of release of energy from food. Food : All the energy required for life processes is obtained by oxidation of some macronutrients that we call food. Autotrophs : Only green plants and cyanobacteria can prepare theirown food by the process of PHOTOSYNTHESIS they trap light energy and CONVERT into chemical energy that is stored in the bonds of CARBOHYDRATES like glucose, sucrose and starch. In green plants too, not all cells, tissues and organs photosynthesise. Only cells containing chloroplasts that are most often located in the superficial LAYERS, carry out photosynthesis. Heterotrophs : Animals are heterotrophs. They obtain food from plants directly or indirectly. Saprophytes : Saprophytes like fungi are dependent on dead and decaying matter. All necessary food for life is obtained through photosynthesis

Discussion

17550.	Question : Give the names of the plants in which following types of inflorescences are found : Catkin, Capitulum and Spikelet.
Answer» SOLUTION :Catkin - Mulberry. CAPITULUM - SUNFLOWER and Spikelet - OAT.

Discussion

Explore topic-wise InterviewSolutions in .

Question : Give the term for thevolume of airinhaled and exhaled duringa normal effortless breathing.

Question : Give the term for the extra-nuclear rings of DNA present in the cytoplasm of Escherichia coli.

Question : Give the term for the expelling of urine out of body.

Question : Give the term for the energy required to initiate a biochemical reaction.

Question : Given the technical terms for the following: Stamens are united in one bunch

Question : Given the technical terms for the following: Stamens are attached to the petals

Question : Given the technical terms for the following: A sterile stamen

Question : Give the technical terms for the following: - (a) A sterile stamen (b) Stamens are united in one bunch (c) Stamens are attached to the petals

Question : Give the symbol representing waterpotential. Also the unit in which it ismeasured.

Question : Give the site where brush-bordered cuboidal epithelium is found.

Question : Give the significance of presenceof turbinatesin the nasalchambers.

Question : Give the significance of glycocalyx.

Question : Give the significance of diffusion.

Question : Give the sequence involved in a reflex action

Question : Give the scope of cell biology.

Question : Give the scientific term for the symbiotic association of a fungus with the roots of higher plant

Question : Give the scientific term for the specialised structure through which guttation occurs.

Question : Give the scientific term for the formation of blood cells in the bone marrow.

Question : Give the scientific term for a cell with two haploid nuclei of different mating types

Question : Give the scientific term for fruiting body of ascomycetes.

Question : Give the scientific names of the following: structure formed by the germinating fern spore.

Question : Give the scientific names of the following: an alga with ribbon-shaped chloroplasts.

Question : Give the scientific name of the insectivorous plant of north eastern part of India which is now an endangered species.

Question : Give the scientific name of a species of fungus which produces a plant disease

Question : Give the scientific name of a species of fungus which is used in the manufacture of ethanol.

Question : Give the scientific name of a species of fungus which is edible

Question : Give the scientific name of a species of fungus which is a source of antibiotic

Question : Give the scientific importance of wildlife.

Question : Give the schematic representation of Calvin cycle/C_(3) pathway.

Question : Give the schematic outline to show the classification of fruits.

Question : Give the role of mitochondria ?

Question : Give the role of DNA present in the nucleolus.

Question : Give the role of adhesive sites in mitochondria.

Question : Give the reasons for the following statements : Water along with dissolved organic and inorganic substances is excreted during the process of bleeding.

Question : Give the relationship between cell size and surface area/volume ratio.

Question : Give the reasons for the following statements : Root pressure is also responsible for ascent of sap.

Question : Give the reasons for the following statements : Process of transpiration represents the kind of diffusion of water vapours.

Question : Give the reasons for the following statements : Pickles, meat and fish are preserved by salting.

Question : Give the reasons for the following statements : In acicular leaves like that of Pinus transpiration rate is less.

Question : Give the reasons for the following statements : Cuticle reduces the rate of transpiration.

Question : Givethe properbotanical termfor heartwoodand sap wood?

Question : Give the position, structural peculiarity and function of pseudostratified epithelium.

Question : Give the points of difference between lenticels and stomata.

Question : Give the percentageof O_(2) is atmospheric and alveolar air.

Question : Give the partial pressureofO_(2) in atmospheric air and alveolar air .

Question : Giventhe overallequationof photosynthesis.

Question :The human cranium is made of __________ bones.

Question : Give the nature of nuclear membrane.

Question : Give the necessity of respiration in living organisms.

Question : Give the names of the plants in which following types of inflorescences are found : Catkin, Capitulum and Spikelet.