Description : Select the wrong statement. (a) In oomycetes, female gamete is smaller and motile, while male gamete is larger and non- motile. (b) Chlamydomonas exhibits both isogamy and anisogamy and ... in structure, function and behaviour. (d) Anisogametes differ either in structure, function or behaviour.
Last Answer : (a) In oomycetes, female gamete is smaller and motile, while male gamete is larger and non- motile.
Description : Basidiospores are considered to be a major source of ------? A. airborne allergens (Answer) B. water borne allergens C. animal faeces D. bio-weapon
Last Answer : A. airborne allergens (Answer)
Description : Bread mold is a member of which phylum? Sexual mating types fuse forming a _____. a. Zygomycota, zyogospores b. Glomeromycota, sporangiospores c. Ascomycota, ascospores d. Basidiomycota, basidiospores
Last Answer : a. Zygomycota, zyogospores
Description : All the following are examples of asexual spore formation except: a. Arthrospores. b. Conidia. c. Sporangiospores. d. Basidiospores.
Last Answer : d. Basidiospores.
Description : An organism in the Deuteromycota has all the following except A.asexual spores B.absorptive nutrition C.ascospores, basidiospores or zygospores D.a nucleus
Last Answer : C.ascospores, basidiospores or zygospores
Description : An organism in the Deuteromycota has all the following except A-asexual spores B- absorptive nutrition C- ascospores, basidiospores or zygospores D-a nucleus
Last Answer : ascospores, basidiospores or zygospores
Description : Virus that infect bacteria are called (a) Bacteriophages (b) Basophils (c) Basal body (d) Basidiospores
Last Answer : (a) Bacteriophages
Description : Hormogonia are vegetative reproductive structure of: (a) Spirogyra (b) Ulothrix (c) Oscillatoria (d) Yeast
Last Answer : Ans. ((c))
Description : Hormogonia are the vegetative reproductive structures of (a) Chlamydomonas (b) Spirogyra (c) Oscillatoria (d) Ulothrix
Description : Which one of the following is the earliest land plant? (a) Rhynia (b) Cycas (c) Ulothrix (d) Synchytrium
Last Answer : Ans. ((a))
Description : Which one of the following is commonly known as Pond Silk'? (1) Spirogyra (2) Rhizopus (3) Yeast (4) Ulothrix
Last Answer : (1) Spirogyra Explanation: Pond silk is the common name of Spirogyra (algae) because it is very slimy in shape. It is also known as pond silk, water silk, pond scum or mermaid's trees because of its bright green silky appearance. Its filaments shine like silk due to the presence of mucilage.
Description : Which of the following is an example of parasitic alga? (1) Ulothrix (2) Cephaleuros (3) Oedogonium (4) Sargassum
Last Answer : (2) Cephaleuros Explanation: Cephaleuros is a genus of parasitic thalloid algae comprising approximately 14 species. Its common name is red rust. The alga is parasitic on tea, coffee, mango and guava causing damage limited to the area of algal growth on leaves.
Description : An alga which can be employed as food for human being is (a) Ulothrix (b) Chlorella (c) Spirogyra (d) Polysiphonia.
Last Answer : (b) Chlorella
Description : The sexual reproduction is absent in (a) Spirogyra (b) Nostoc (c) Ulothrix (d) Volvox.
Last Answer : b) Nostoc
Description : In Ulothrix/Spirogyra, reduction division (meiosis) occurs at the time of (a) gamete formation (b) zoospore formation (c) zygospore germination (d) vegetative reproduction.
Last Answer : (c) zygospore germination
Description : An alga, very rich in protein, is (a) Chlorella (b) Nostoc (c) Spirogyra (d) Ulothrix.
Last Answer : (a) Chlorella
Description : Ulothrix can be described as a (a) filamentous alga lacking flagellated reproductive stages (b) membranous alga producing zoospores (c) filamentous alga with flagellated reproductive stages (d) non-motile colonial alga lacking zoospores.
Last Answer : (c) filamentous alga with flagellated reproductive stages
Description : Which one of the following shows isogamy with non-flagellated gametes? (a) Sargassum (b) Ectocarpus (c) Ulothrix (d) Spirogyra
Last Answer : (d) Spirogyra
Description : An example of colonial alga is (a) Volvox (b) Ulothrix (c) Spirogyra (d) Chlorella
Last Answer : (a) Volvox
Description : Columella is a specialized structure found in the sporangium of (a) Spirogyra (b) Ulothrix (c) Rhizopus (d) none of these.
Last Answer : (c) Rhizopus
Description : An example of colonial alga is : (1) Volvox (2) Ulothrix (3) Spirogyra (4) Chlorella
Last Answer : (1) Volvox
Description : Which one of the following is commonly known as ‘Pond Silk’? (1) Spirogyra (2) Rhizopus (3) Yeast (4) Ulothrix
Last Answer : Spirogyra
Description : Which of the following is an example of parasitic alga ? (1) Ulothrix (2) Cephaleuros (3) Oedogonium (4) Sargassum
Last Answer : Cephaleuros
Description : Can I also wrap a line of colored lights around a tree with lighted filaments?
Last Answer : I imagine it’d be fine unless you bring the whole thing in the bathtub with you.
Description : Difference between microfilaments and intermediate filaments? -Biology
Last Answer : answer:
Description : Many fungi exist as branching networks of multicellular filaments. What characteristic of these filaments helps with nutrient absorption?
Last Answer : large surface area
Description : Anthers are fused and filaments are free in
Last Answer : Anthers are fused and filaments are free in A. Sunflower B. Gossypium C. Murraya D. Petunia
Description : Fill in the blanks with the suitable words____filaments are thinner as compared to the _____ filaments, hence are commonly called ______ and filaments
Last Answer : Fill in the blanks with the suitable words____filaments are thinner as compared to the ... are commonly called ______ and filaments respectively.
Description : Light bands of muscle fiber consist of filaments called____whereas dark bands consist of filaments called_____
Last Answer : Light bands of muscle fiber consist of filaments called____whereas dark bands consist of filaments called_____
Description : A characteristic feature of a muscle fibre is the presence of large number of parallel arranged filaments in the sarcoplasm called_____
Last Answer : A characteristic feature of a muscle fibre is the presence of large number of parallel arranged filaments in the sarcoplasm called_____
Description : Myosin filaments are localized in
Last Answer : Myosin filaments are localized in A. Z band B. H band C. A band D. None of the above
Description : At rest, when mucsle is relaed, thin filaments interdigitate with thick filaments only
Last Answer : At rest, when mucsle is relaed, thin filaments interdigitate with thick filaments only A. Outside A band B. ... band C. Inside A band D. Inside M line
Description : The tungsten filaments of two electric bulbs are of the same length. If one of them gives 25 W power and the other 60 W power, then
Last Answer : The tungsten filaments of two electric bulbs are of the same length. If one of them gives 25 ... D. Both the filaments have same cross-sectional area
Description : What are the filaments called that help some bacteria stick to surface and exchange plasmids through conjugation?
Last Answer : Pili are filaments that help bacteria stick to the surface andexchange plasmid through conjugation.
Description : Synandrous c9ndition is the fusion of (a) Filaments only (b) Both filaments and anthers (c) Anthers only (d) Petals
Last Answer : Ans. ((b))
Description : The activities of the cytoskeleton is dependent on which of the following types of filaments? a. Microtubules b. Intermediate filaments c. Actin filaments d. None of the above
Last Answer : Answer: a, b, c The cytoskeleton is a collection of filamentous protein structures that allow cells to assume and maintain a variety of shapes, to produce directed movement of ... activities depend upon three main types of filaments: actin filaments, intermediate filaments, and microtubules
Description : Consider the following statements: 1. Cross bridges can cause muscle contraction. 2. They are able to oscillate back and forth and hook up with active sites on actin filaments 3. The bridges enable the thin filaments to pull the thick filaments by a ... (a) 1, 2 (b) 2, 3 (c) 1, 2, 4 (d) 1, 2, 3, 4
Last Answer : Ans:(c)
Description : The H-disk in the skeletal muscle fibre is due to (a) the absence of myofibrils in the central portion of Aband (b) the central gap between myosin filaments in the Aband Questions (c) the ... myosin filaments in the A-band (d) birefringence of myosin filaments in the central portion of A-band
Description : Which metal is used in the filaments of electric lamps?
Last Answer : Tungsten
Description : Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter ... the __________ fibres. (A) Acrylic (B) Polyester (C) Nylon 6:6 (D) Polypropylene
Last Answer : (A) Acrylic
Description : All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it cannot be used for the production of plastic (A) Filaments (B) Pipes (C) Buckets (D) Tubings
Last Answer : (C) Buckets
Description : With reference to the skeletal muscle myofilaments a. actin is the major constituent of thin filaments b. myosin and tropomyosin combine to form the thick filaments c. troponin is a constituents of thin filaments d. tropomyosin prevents the interaction of actin and myosin in the resting state
Last Answer : actin is the major constituent of thin filaments
Description : Centriole consists of how many paired filaments a. 5 b. 7 c. 9 d. 11
Last Answer : 11
Description : Select the correct statement regarding the specific disorder of muscular or skeletal system. (a) Muscular dystrophy - Age related shortening of muscles (b) Osteoporosis - Decrease in bone mass and ... of myosin filaments (d) Gout - Inflammation of joints due to extra deposition of calcium
Last Answer : (b) Osteoporosis – Decrease in bone mass and higher chances of fractures with advancing age
Description : During muscle contraction in humans, the (a) sarcomere does not shorten (b) A band remains same (c) A, H and I bands shorten (d) actin filaments shorten.
Last Answer : (b) A band remains same
Description : The H-zone in the skeletal muscle fibre is due to (a) the central gap between actin filaments extending through myosin filaments in the A-band (b) extension of myosin filaments in the central portion ... the central portion of A-band (d) the central gap between myosin filaments in the A-band.
Last Answer : (a) the central gap between actin filaments extending through myosin filaments in the A-band
Description : Sliding filament theory can be best explained as (a) actin and myosin filaments do not shorten but rather slide pass each other (b) when myofilaments slide pass each other, myosin filaments shorten ... filaments do not shorten (d) actin and myosin filaments shorten and slide pass each other.
Last Answer : (a) actin and myosin filaments do not shorten but rather slide pass each other
Description : Cytoskeleton is made up of (a) callose deposits (b) cellulosic microfibrils (c) proteinaceous filaments (d) calcium carbonate granules.
Last Answer : (c) proteinaceous filaments
Description : The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as (a) microtubules (b) microfilaments (c) intermediate filaments (d) lamins.
Last Answer : (b) microfilaments