22339 + Interview Questions in Biology in Class 11 Page 292 InterviewSolution

14551.	Question : Name a chronic respiratiory disorder in which alveolar walls are damaged due cigarette smoking.
Answer» SOLUTION :EMPHYSEMA

Discussion

14552.	Question : Name a crop that can be grown without the requirement of addition of nitrogen to the soil.
Answer» SOLUTION : LEGUME CROP.

Discussion

14553.	Question : Name a chemoautotrophic bacterium.
Answer» SOLUTION :NITRIFYING BACTERIUM.

Discussion

14554.	Question :Name a cell that is found arrested in diplotene stage for months and years. Comment in 2-3 lines how it completes cell cycle ?
Answer» Solution :In egg cells of mammals generally the process of occurring meiosis becomes stagnant is normal. In female, meiosis begins from embryo when CHROMOSOMES get together, and proceed TILL Diplotene, cell is seen in dictuate phase. This stagnancy is under regulation of hormones. In this phase FORMATION of Lampbrush chromosomes is a peculiarity seen when RNA synthesis TAKES place and genes LOCATED in DNA undergo transcription and expression.

Discussion

14555.	Question : Name a cell that is found arrested in diplotene stage for months and years. Comment in 2-3 lines how it completes cell cycle ?
Answer» Solution :Meiotic arrest at diplotene stage commonly occurs in mammalian occytes. In females, meiosis starts in the embryo and PROCEEDS as for as diplotene, when the chromosomes become diffused and the cells are referred to as being in the dictuate stage. This arrest is under hormonal control. In many amphibian OOCYTES BINDS and insects with a long period of IMMATURITY, the oocyte may be arrested in the dictyate stage for many YEARS and spend a prolonged period in diplotene. This stage is characterised by formation of lampbrush chromosomers where intense RNA synthesis occurs and most of the genes in the DNA loops are actively transcrbed and expressed.

Discussion

14556.	Question :Namea cell that has many nuclei
Answer» SOLUTION :RHIZOPUS (a FUNGUS)

Discussion

14557.	Question : Name a carnial nerve that extends down to the abdominal region
Answer» SOLUTION :VAGUS NERVE

Discussion

14558.	Question : Name (a) A limbless animal (b) A cold blooded animal (c) A warm blooded animal (d) An animal possessing dry and cornified skin (e) An animal having canal system and spicules (f) An animal with cnidoblasts
Answer» Solution :(a) Ichthyophis (b) Frog (C) PARROT (d) PYTHON (E) SYCON (f) Obelia

Discussion

14559.	Question : Name important groups of Kingdom Protista.
Answer» Solution :(i) Amoeboid PROTOZOANS (ii) Flagellated protozoans (iii) CILIATED protozoans (IV) SPOROZOANS.

Discussion

14560.	Question : Name two structures that are found only in plant cells and are absent in animal cells.
Answer» SOLUTION :PLASTIDS and CELL WALL.

Discussion

14561.	Question : Name 2 structures that are present in the nucleus but are also present in mitochondria.
Answer» SOLUTION :DNA and RIBOSOMES.

Discussion

14562.	Question : Name 4 important group of fungi.
Answer» SOLUTION :ZYGOMYCETES, ASCOMYCETES, BASIDIOMYCETES and DEUTEROMYCETES.

Discussion

14563.	Question : Name 2 phyla that show protostome plan.
Answer» SOLUTION :ANNELIDS, MOLLUSCA.

Discussion

14564.	Question : Name 2 occupational respiratory disorders.
Answer» ANSWER :SILICOSIS and ASBESTOSIS

Discussion

14565.	Question : Name 2 hormones that are antagonistic in action.
Answer» ANSWER :ABA and GIBBERELLINS.

Discussion

14566.	Question : Name 2 fungal species employed as Biopesticides.
Answer» SOLUTION :BEAUVERIA bassiana and Metarhizium anisopliae.

Discussion

14567.	Question : Name 2 famous botanical gardens of India.
Answer» SOLUTION :INDIAN Botanical Garden, Kolkata, NATIONAL Botanical Garden Lucknow.

Discussion

14568.	Question : Name 2 examples of parasitic fungi of Basidiomycetes group?
Answer» SOLUTION :PUCCINIA graminis, USTILAGO.

Discussion

14569.	Question : Name two antibiotics of fungal origin.
Answer» SOLUTION :PENICILLIUM, ERYTHROMYCIN.

Discussion

14570.	Question :"Naked fungi" (Slime moulds) are naked
Answer» When they are REPRODUCING When they are not reproducing ALWAYS naked Never naked Answer :B

Discussion

14571.	Question : Naked cytoplasm, multinucleated and saprophytic are the characteristics of (A) Monera (B) Protista (C) Fungi (D) Slime moulds
Answer» Monera Protista FUNGI SLIME MOULDS SOLUTION :Slime moulds

Discussion

14572.	Question : Naja naja is the zoological name of …………….. .
Answer» Indian house CROW Indian cobra EMERALD dove Indian pea FOWL Answer :B

Discussion

14573.	Question : NADP reductase enzyme is located on the stroma side of membrane.
Answer» ANSWER :TRUE

Discussion

14574.	Question : NADP reductase enzyme is located on the ……… side of membrane.
Answer» ANSWER :STROMA

Discussion

14575.	Question : NADP is converted into NADPH2 in
Answer» PHOTOSYSTEM I photosystem II calvin cycle non CYCLIC photophosphorylation Answer :D

Discussion

14576.	Question : NAD^(+)is reduced in photorespiration inside
Answer» Mitochondria Mitochondria and peroxisome Mitochondria and chloroplasts Chloroplasts and peroxisomes Solution :`NAD^(+)` is REDUCED in PHOTORESPIRATION INSIDE mitochondda.

Discussion

14577.	Question : NAD functions in cell respiration as an co-enzyme.
Answer» Solution :NAD helps in OXIDATION REDUCTION REACTIONS.

Discussion

14578.	Question : NAD:
Answer» ANSWER :NICOTINAMIDE ADENINE DINUCLEOTIDE.

Discussion

14579.	Question : Na^(+)and K^(+)pumping across the membrane is al an
Answer» PASSIVE TRANSPORT Active transport Diffusion None of these Answer :B

Discussion

14580.	Question : (N_2+8e+8H+16ATPrarr2NH_3+2H+16ADP+8e) The above equation refers to
Answer» ammnionification nitrification nitrogen fication denitrification Answer :C

Discussion

14581.	Question : In mitotic metaphase centromeres of chromosomes remain directed towards the ……………………………… and the arms of chromosomes remain directed towards the ……………………..
Answer» SOLUTION :PROPHASE I

Discussion

14582.	Question : Myxophyceae refers to ……………….
Answer» ALGAE FUNGI ARCHAEBACTERIA CYANOBACTERIA ANSWER :D

Discussion

14583.	Question : Myxoedema is a disorder of
Answer» PARATHYROID GLAND adrenal gland pituitary gland thyroid gland

Discussion

14584.	Question : Myxomycetes are
Answer» saprobes or parasites, having MYCELIA, asexual reproduction by fragmentation, SEXUAL reproduction by FUSION of gametes slimy mass of MULTINUCLEATE PROTOPLASM,having pseudopodia-like structures for engulfing food,reproduction through frag mentation or zoospores prokaryotic organisms, cellular or acellular, saprobes or autotrophic, reproduce by binary fission eukaryotic, single-celled or filamentous, saprobes or autotrophic, asexual reproduction by fusion of two cells or their nuclei Answer :B

Discussion

14585.	Question : Myxodema is otherwise called .........
Answer» SOLUTION :(GULL's DISEASE)

Discussion

14586.	Question : Myxamoeba are formed in the life cycle of
Answer» Physarum Amoeba Entamoeba DIATOMS ANSWER :A

Discussion

14587.	Question : Myosin ATP ase gets activated in the pressence of __.
Answer» ANSWER :CALCIUM IONS

Discussion

14588.	Question : Myoglobin is present in
Answer» ALLL MUSCLE fibres white muscle FIBRE RED muscle fibre NONE of these. Solution :N//A

Discussion

14589.	Question : Myeloid stem cells can differentiate into B and T cells only, This is a case of ___________ .
Answer» Totipotency Unipotency Oligopotency Multipotency Answer :C

Discussion

14590.	Question : Myocardial cells are joined to adjacent myocardial cells by
Answer» TIGHT JUNCTIONS desmosomes gap junctions and ELECTRICAL synapses microvilli ANSWER :C

Discussion

14591.	Question : Myelinated nerve fibre differ from nonmyelinated nerve fibres in
Answer» LACKING nodes of RANVIER Being without Schwann CELL Showing saltatory conduct of nerve impulse SLOW CONDUCTION of nerve impulse Answer :A

Discussion

14592.	Question : Myelin sheath is formed by
Answer» Ranvier cells muscle cells Schwann cells axon Solution :Each segment of MYELIN sheath is formed by one Schwann cell.Myelin sheath is present in the myelinated nerve fibres.It is made up of a substance of lipids, proteins and water called myelin and serves as an insulating LAYER, preventing loss of energy of the nerve impulse during its PASSAGE ALONG the fibre.

Discussion

14593.	Question : Myelin sheath acts as an______
Answer» SOLUTION :INSULATOR

Discussion

14594.	Question : Myelin sheath is derived from
Answer» neuroglial CELLS SCHWANN cells NERVE cells all of these Answer :B

Discussion

14595.	Question : Mycorrhizal roots of .......... are associated with some fungal symbionts
Answer» ferns pinus cycas potytrichum Answer :(B)

Discussion

14596.	Question : Mycorrhizae are the example of
Answer» Fungitasis Amensalism Antibiosis Mutalism Solution :Mutalism

Discussion

14597.	Question : Mycorrhiza is the example of :
Answer» AMENSALISM ANTIBIOSIS MUTUALISM Fungistasis ANSWER :C

Discussion

14598.	Question : Mycorrhiza is an association of fungi with
Answer» BROWN algae green algae plant roots plant STEMS

Discussion

14599.	Question : Mycorrhiza is a mutualistic association, How do the organism involved in this association gain from each other.
Answer» Solution :MYCORRHIZA has symbiotic relationship with fungi and pass life in the root SYSTEM of gymnosperms. In that fungi provides direct CARBOHYDRATES to PLANT. In place of fungal fibre-Glucose and sucroses. Provides water and SALTS to plants as they have wide network of fungi

Discussion

14600.	Question : Mycoplasma differs from virus in being sensitive to
Answer» Sugar Tetracycline Protein Amino acid Solution :MYCOPLASMA are senstive to tetracycline and resistant to PENICILLIN, because they LACK cell WALL.

Discussion

Explore topic-wise InterviewSolutions in .

Question : Name a chronic respiratiory disorder in which alveolar walls are damaged due cigarette smoking.

Question : Name a crop that can be grown without the requirement of addition of nitrogen to the soil.

Question : Name a chemoautotrophic bacterium.

Question :Name a cell that is found arrested in diplotene stage for months and years. Comment in 2-3 lines how it completes cell cycle ?

Question : Name a cell that is found arrested in diplotene stage for months and years. Comment in 2-3 lines how it completes cell cycle ?

Question :Namea cell that has many nuclei

Question : Name a carnial nerve that extends down to the abdominal region

Question : Name (a) A limbless animal (b) A cold blooded animal (c) A warm blooded animal (d) An animal possessing dry and cornified skin (e) An animal having canal system and spicules (f) An animal with cnidoblasts

Question : Name important groups of Kingdom Protista.

Question : Name two structures that are found only in plant cells and are absent in animal cells.

Question : Name 2 structures that are present in the nucleus but are also present in mitochondria.

Question : Name 4 important group of fungi.

Question : Name 2 phyla that show protostome plan.

Question : Name 2 occupational respiratory disorders.

Question : Name 2 hormones that are antagonistic in action.

Question : Name 2 fungal species employed as Biopesticides.

Question : Name 2 famous botanical gardens of India.

Question : Name 2 examples of parasitic fungi of Basidiomycetes group?

Question : Name two antibiotics of fungal origin.

Question :"Naked fungi" (Slime moulds) are naked

Question : Naked cytoplasm, multinucleated and saprophytic are the characteristics of (A) Monera (B) Protista (C) Fungi (D) Slime moulds

Question : Naja naja is the zoological name of …………….. .

Question : NADP reductase enzyme is located on the stroma side of membrane.

Question : NADP reductase enzyme is located on the ……… side of membrane.

Question : NADP is converted into NADPH2 in

Question : NAD^(+)is reduced in photorespiration inside

Question : NAD functions in cell respiration as an co-enzyme.

Question : NAD:

Question : Na^(+)and K^(+)pumping across the membrane is al an

Question : (N_2+8e+8H+16ATPrarr2NH_3+2H+16ADP+8e) The above equation refers to

Question : In mitotic metaphase centromeres of chromosomes remain directed towards the ……………………………… and the arms of chromosomes remain directed towards the ……………………..

Question : Myxophyceae refers to ……………….

Question : Myxoedema is a disorder of

Question : Myxomycetes are

Question : Myxodema is otherwise called .........

Question : Myxamoeba are formed in the life cycle of

Question : Myosin ATP ase gets activated in the pressence of __.

Question : Myoglobin is present in

Question : Myeloid stem cells can differentiate into B and T cells only, This is a case of ___________ .

Question : Myocardial cells are joined to adjacent myocardial cells by

Question : Myelinated nerve fibre differ from nonmyelinated nerve fibres in

Question : Myelin sheath is formed by

Question : Myelin sheath acts as an______

Question : Myelin sheath is derived from

Question : Mycorrhizal roots of .......... are associated with some fungal symbionts

Question : Mycorrhizae are the example of

Question : Mycorrhiza is the example of :

Question : Mycorrhiza is an association of fungi with

Question : Mycorrhiza is a mutualistic association, How do the organism involved in this association gain from each other.

Question : Mycoplasma differs from virus in being sensitive to