Which one of the following is a living fossil? (a) Cycas (b) Moss (c) Saccharomyces (d) Spirogyra

Which one of the following is a living fossil?
(a) Cycas (b) Moss
(c) Saccharomyces (d) Spirogyra
by

1 Answer

Answer :

(a) Cycas
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Related questions

Flagellated male gametes are present in all the three of which one of the following sets? (a) Zygnema, Saprolegnia and Hydrilla (b) Fucus, Marsilea and Calotropis (c) Riccia, Dryopteris and Cycas (d) Anthoceros, Funaria and Spirogyra

Description : Flagellated male gametes are present in all the three of which one of the following sets? (a) Zygnema, Saprolegnia and Hydrilla (b) Fucus, Marsilea and Calotropis (c) Riccia, Dryopteris and Cycas (d) Anthoceros, Funaria and Spirogyra

Last Answer : (c) Riccia, Dryopteris and Cycas

Which of the following plants is referred to as a living fossil? a. Ephedra b. Cycas c. Gingko d. Adiantum

Description : Which of the following plants is referred to as a living fossil? a. Ephedra b. Cycas c. Gingko d. Adiantum

Last Answer : c. Gingko

Which one has the largest gametophyte? (a) Cycas (b) Angiosperm (c) Selaginella (d) Moss

Description : Which one has the largest gametophyte? (a) Cycas (b) Angiosperm (c) Selaginella (d) Moss

Last Answer : (d) Moss

Which one of the following living organisms completely lacks a cell wall? (a) Cyanobacteria (b) Sea-fan (Gorgonia) (c) Saccharomyces (d) Blue-green algae

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Last Answer : (b) Sea-fan (Gorgonia)

Which one of the following is categorised under living fossils? (a) Pinus (b) Cycas (c) Selaginella (d) Metasequoia

Description : Which one of the following is categorised under living fossils? (a) Pinus (b) Cycas (c) Selaginella (d) Metasequoia

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What features did the cells you observed have in common How were they different - Bacillus Megaterium - Mixed Diatoms - Anaboena - Micrococcus Luteus - Hydra - Saccharomyces - Paramecium?

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Last Answer : Feel Free to Answer

Fungus without mycelium is: (a) Puccinia (b) Rhizopus (c) Saccharomyces (d) Mucor

Description : Fungus without mycelium is: (a) Puccinia (b) Rhizopus (c) Saccharomyces (d) Mucor

Last Answer : Ans. ((c))

Measuring Biochemical Oxygen Demand (BOD) is a method used for (a) estimating the amount of organic matter in sewage water (b) working out the efficiency of oil driven automobile engines (c) measuring the activity of Saccharomyces cerevisiae in producing curd on a commercial scale (d) working out the efficiency of RBCs about their capacity to carry oxygen.

Description : Measuring Biochemical Oxygen Demand (BOD) is  a method used for  (a) estimating the amount of organic matter in  sewage water (b) working out the efficiency of oil driven  automobile engines ... commercial  scale (d) working out the efficiency of RBCs about their  capacity to carry oxygen.

Last Answer : (a) estimating the amount of organic matter in  sewage water

Measuring Biochemical Oxygen Demand (BOD) is a method used for (a) estimating the amount of organic matter in sewage water (b) working out the efficiency of oil driven automobile engines (c) measuring the activity of Saccharomyces cerevisiae in producing curd on a commercial scale (d) working out the efficiency of RBCs about their capacity to carry oxygen.

Description : Measuring Biochemical Oxygen Demand (BOD) is a method used for (a) estimating the amount of organic matter in sewage water (b) working out the efficiency of oil driven automobile engines (c) ... a commercial scale (d) working out the efficiency of RBCs about their capacity to carry oxygen.

Last Answer : (a) estimating the amount of organic matter in sewage water

Human insulin is being commercially produced from a transgenic species of (a) Rhizobium (b) Saccharomyces (c) Escherichia (d) Mycobacterium

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The organism, used for alcohol fermentation, is (a) Aspergillus (b) Saccharomyces (c) Pseudomonas (d) Penicillium.

Description : The organism, used for alcohol fermentation, is (a) Aspergillus (b) Saccharomyces (c) Pseudomonas (d) Penicillium.

Last Answer : (b) Saccharomyces

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Last Answer : (b) ethanol

Which of the following is used to manufacture ethanol from starch? (a) Penicillium (b) Saccharomyces (c) Azotobacter (d) Lactobacillus

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Last Answer : (b) Saccharomyces

Ethanol is commercially produced through a particular species of (a) Saccharomyces (b) Clostridium (c) Trichoderma (d) Aspergillus.

Description : Ethanol is commercially produced through a particular species of (a) Saccharomyces (b) Clostridium (c) Trichoderma (d) Aspergillus.

Last Answer : (a) produce methane

A good producer of citric acid is (a) Clostridium (b) Saccharomyces (c) Aspergillus (d) Pseudomonas.

Description : A good producer of citric acid is (a) Clostridium (b) Saccharomyces (c) Aspergillus (d) Pseudomonas.

Last Answer : (c) Aspergillus

Match the following list of microbes and their importance. Column I Column II A. Saccharomyces (i) Production of cerevisiae immuno- suppressive agent B. Monascus (ii) Ripening of Swiss purpureus cheese C. Trichoderma (iii)Commercial polysporum production of ethanol D. Propionibacterium (iv) Production of shermanii blood-cholesterol lowering agents (a) A-(iv), B-(ii), C-(i), D-(iii) (b) A-(iii), B-(i), C-(iv), D-(ii) (c) A-(iii), B-(iv), C-(i), D-(ii) (d) A-(iv), B-(iii), C-(ii),D-(i)

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Last Answer : (c) A-(iii), B-(iv), C-(i), D-(ii)

Match the following organisms with the products they produce. (A) Lactobacillus (i) Cheese (B) Saccharomyces (ii) Curd cerevisiae (C) Aspergillus niger (iii) Citric acid (D) Acetobacter aceti (iv) Bread (v) Acetic acid Select the correct option. (A) (B) (C) (D) (a) (ii) (i) (iii) (v) (b) (ii) (iv) (v) (iii) (c) (ii) (iv) (iii) (v) (d) (iii) (iv) (v) (i)

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Last Answer : c) (ii) (iv) (iii) (v)

Cellulose is the major component of cell walls of (a) Pseudomonas (b) Saccharomyces (c) Pythium (d) Xanthomonas.

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.How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia (a) Four (b) Five (c) Six (d) Three

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Which among the following is not a prokaryote? (a) Saccharomyces (b) Mycobacterium (c) Nostoc (d) Oscillatoria

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Last Answer : (a) Saccharomyces

Yeasts of the species Saccharomyces a. Are Used In Bread Making. b. Reproduce By Budding. c. Are Members Of The Ascomycetes. d. All Of The Above (A—C) Are Correct.

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Last Answer : d. All Of The Above (A—C) Are Correct.

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Last Answer : Aspergillusspp

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Most important species of vinegar bacteria causing sliminess is A- Acetobacteraceti B- Saccharomyces carlsbergiensis C- Lactobacillus lactis D- None of the above

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3. Which bacterium is used in the production of insulin by genetic engineering? a. Saccharomyces b. Rhizobium c. Escherichia d. Mycobacterium

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After karyogamy followed by meiosis, spores are produced exogenously in (1) Neurospora (2) Alternaria (3) Agaricus (4) Saccharomyces

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Last Answer : (3) Agaricus

Which among the following is not a prokaryote ? (1) Saccharomyces (2) Mycobacterium (3) Nostoc (4) Oscillatoria

Description : Which among the following is not a prokaryote ? (1) Saccharomyces (2) Mycobacterium (3) Nostoc (4) Oscillatoria

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What is filament of spirogyra?

Description : What is filament of spirogyra?

Last Answer : Spirogyra is a genus of green algae that is commonly found in freshwater environments such as ponds, streams, and ditches. The filament of Spirogyra is a long, slender, multicellular structure ... , which occurs when the filament breaks into individual cells that can grow into new filaments.

How do Spirogyra and Mucor reproduce asexually ?

Description : How do Spirogyra and Mucor reproduce asexually ?

Last Answer : Spirogyra and Mucor are both organisms that reproduce asexually through fragmentation. Spirogyra reproduces asexually by fragmentation, which occurs when the filament breaks into individual cells that can ... , and in this way, Mucor can reproduce asexually through fragmentation of the mycelium.

Characteristics of spirogyra algae -Biology

Description : Characteristics of spirogyra algae -Biology

Last Answer : answer:

Which of the following pairs are correctly matched? (1) Fertile spike —Ophioglossum (2) Sporangiophore—Equisetum (3) Synangium—Psilotum (4) Apophysis—Spirogyra

Description : Which of the following pairs are correctly matched? (1) Fertile spike —Ophioglossum (2) Sporangiophore—Equisetum (3) Synangium—Psilotum (4) Apophysis—Spirogyra

Last Answer : Ans. ((a))

Hormogonia are vegetative reproductive structure of: (a) Spirogyra (b) Ulothrix (c) Oscillatoria (d) Yeast

Description : Hormogonia are vegetative reproductive structure of: (a) Spirogyra (b) Ulothrix (c) Oscillatoria (d) Yeast

Last Answer : Ans. ((c))

Hormogonia are the vegetative reproductive structures of (a) Chlamydomonas (b) Spirogyra (c) Oscillatoria (d) Ulothrix

Description : Hormogonia are the vegetative reproductive structures of (a) Chlamydomonas (b) Spirogyra (c) Oscillatoria (d) Ulothrix

Last Answer : Ans. ((c))

Which one of the following is commonly known as Pond Silk'? (1) Spirogyra (2) Rhizopus (3) Yeast (4) Ulothrix

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.

Write a note on Spirogyra?

Description : Write a note on Spirogyra?  

Last Answer : i) It is multicellular filamentous green alga. ii) It is found in fresh water ponds, lakes and streams. iii) Filamentous thallus consists of many cylindrical cells which are joined from end to end ... . ix) It grows in length by cell division. x) It reproduces both sexually and asexually.

Which of the following species does not have the ability to fix atmospheric nitrogen? (a) Azotobactor (b) Anabaena (c) Nostoc (d) Spirogyra

Description : Which of the following species does not have the ability to fix atmospheric nitrogen? (a) Azotobactor (b) Anabaena (c) Nostoc (d) Spirogyra

Last Answer : (d) Spirogyra

An alga which can be employed as food for human being is (a) Ulothrix (b) Chlorella (c) Spirogyra (d) Polysiphonia.

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

The sexual reproduction is absent in (a) Spirogyra (b) Nostoc (c) Ulothrix (d) Volvox.

Description : The sexual reproduction is absent in (a) Spirogyra (b) Nostoc (c) Ulothrix (d) Volvox.

Last Answer : b) Nostoc

Anoxygenic photosynthesis is characteristic of (a) Rhodospirillum (b) Spirogyra (c) Chlamydomonas (d) Ulva.

Description : Anoxygenic photosynthesis is characteristic of (a) Rhodospirillum (b) Spirogyra (c) Chlamydomonas (d) Ulva.

Last Answer : (a) Rhodospirillum

The product of conjugation in Spirogyra or fertilization of Chlamydomonas is (a) zygospore (b) zoospore (c) oospore (d) carpospore.

Description : The product of conjugation in Spirogyra or fertilization of Chlamydomonas is (a) zygospore (b) zoospore (c) oospore (d) carpospore.

Last Answer : (a) zygospore

In Ulothrix/Spirogyra, reduction division (meiosis) occurs at the time of (a) gamete formation (b) zoospore formation (c) zygospore germination (d) vegetative reproduction.

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

An alga, very rich in protein, is (a) Chlorella (b) Nostoc (c) Spirogyra (d) Ulothrix.

Description : An alga, very rich in protein, is (a) Chlorella (b) Nostoc (c) Spirogyra (d) Ulothrix.

Last Answer : (a) Chlorella

Sexual reproduction in Spirogyra is an advanced feature because it shows (a) different sizes of motile sex organs (b) same size of motile sex organs (c) morphologically different sex organs (d) physiologically differentiated sex organs

Description : Sexual reproduction in Spirogyra is an advanced feature because it shows (a) different sizes of motile sex organs (b) same size of motile sex organs (c) morphologically different sex organs (d) physiologically differentiated sex organs

Last Answer : (d) physiologically differentiated sex organs.

Which one of the following is wrongly matched? (a) Spirogyra - Motile gametes (b) Sargassum - Chlorophyll (c) Basidiomycetes - Puffballs (d) Nostoc - Water blooms

Description : Which one of the following is wrongly matched? (a) Spirogyra - Motile gametes (b) Sargassum - Chlorophyll (c) Basidiomycetes - Puffballs (d) Nostoc - Water blooms

Last Answer : (a) Spirogyra - Motile gametes

Isogamous condition with non-flagellated gametes is found in (a) Volvox (b) Fucus (c) Chlamydomonas (d) Spirogyra.

Description : Isogamous condition with non-flagellated gametes is found in (a) Volvox (b) Fucus (c) Chlamydomonas (d) Spirogyra.

Last Answer : (d) Spirogyra.

Which one of the following shows isogamy with non-flagellated gametes? (a) Sargassum (b) Ectocarpus (c) Ulothrix (d) Spirogyra

Description : Which one of the following shows isogamy with non-flagellated gametes? (a) Sargassum (b) Ectocarpus (c) Ulothrix (d) Spirogyra

Last Answer : (d) Spirogyra

Male gametes are flagellated in (a) Ectocarpus (b) Spirogyra (c) Polysiphonia (d) Anabaena

Description : Male gametes are flagellated in (a) Ectocarpus (b) Spirogyra (c) Polysiphonia (d) Anabaena

Last Answer : (a) Ectocarpus