Characteristics of spirogyra algae -Biology

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.

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

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

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

Last Answer : (a) Cycas

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

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

An example of colonial alga is (a) Volvox (b) Ulothrix (c) Spirogyra (d) Chlorella

Description : An example of colonial alga is (a) Volvox (b) Ulothrix (c) Spirogyra (d) Chlorella

Last Answer : (a) Volvox

Columella is a specialized structure found in the sporangium of (a) Spirogyra (b) Ulothrix (c) Rhizopus (d) none of these.

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

Which one belongs to Monera? (a) Amoeba (b) Escherichia (c) Gelidium (d) Spirogyra

Description : Which one belongs to Monera? (a) Amoeba (b) Escherichia (c) Gelidium (d) Spirogyra

Last Answer : (b) Escherichia

Read the following statements and select the correct option. Statement-I : Nostoc and Bacteria are prokaryotes. Statement-II: Penicillium and Spirogyra are fungi. (1) Only statement I is true (2) Only statement II is true (3) Both statements I and II are true (4) Both statements I and II are false

Description : Read the following statements and select the correct option. Statement-I : Nostoc and Bacteria are prokaryotes. Statement-II: Penicillium and Spirogyra are fungi. (1) Only statement I is true (2) Only statement II is true (3) Both statements I and II are true (4) Both statements I and II are false

Last Answer : (1) Only statement I is true

2.Which of the following organism shows zygotic meiosis? (a) Nephrolepis, b)Pinus, c) Spirogyra d) mango)

Description : 2.Which of the following organism shows zygotic meiosis? (a) Nephrolepis, b)Pinus, c) Spirogyra d) mango)

Last Answer : c) Spirogyra

An example of colonial alga is : (1) Volvox (2) Ulothrix (3) Spirogyra (4) Chlorella

Description : An example of colonial alga is : (1) Volvox (2) Ulothrix (3) Spirogyra (4) Chlorella

Last Answer : (1) Volvox

Resurrection plant is a. Spirogyra b. Selaginella c. Lichen d. Rhynia

Description : Resurrection plant is a. Spirogyra b. Selaginella c. Lichen d. Rhynia

Last Answer : b. Selaginella

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 : Spirogyra

Mention the characteristics of multi-cellular algae.

Description : Mention the characteristics of multi-cellular algae.

Last Answer : a) Algae are autotrophic organisms. b) They have green pigment chlorophyll. c) They are major producers in marine ecosystem. d) They are non-vascular plants. e) They have a ... of male and female gametes. Example: Spirogyra, Ulothrix, Batrachospermum, Polysiphonia, Sargassum and Ectocarpus.

Write down the characteristics of Algae?

Description : Write down the characteristics of Algae?

Last Answer : i) Algae are simple eukaryotes. ii) They are chlorophyllous and can prepare their own food. iii) They have cellulose in cell wall. iv) Their reproductive organs are unicellular and body is simple. ... groups of algae are Green algae, Brown algae, Red Algae, Golden brown algae, and Diatoms.

What is SCP (single cell protein) in regard to algae? -Biology

Description : What is SCP (single cell protein) in regard to algae? -Biology

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How are the algae used in space travel? -Biology

Description : How are the algae used in space travel? -Biology

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How are algae used in sewage disposal? -Biology

Description : How are algae used in sewage disposal? -Biology

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What are the economic importance of algae? -Biology

Description : What are the economic importance of algae? -Biology

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Explain reproduction in algae. -Biology

Description : Explain reproduction in algae. -Biology

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What are algae? -Biology

Description : What are algae? -Biology

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What are blue-green algae? -Biology

Description : What are blue-green algae? -Biology

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Is the algae toxic? -Biology

Description : Is the algae toxic? -Biology

Last Answer : Algae is a diverse group of photosynthetic organisms that can be found in various aquatic environments such as oceans, lakes, and rivers. While the majority of algae species are harmless, ... to consult local environmental authorities or experts who can provide up-to-date information and guidance.

What causes blue-green algae blooms? -Biology

Description : What causes blue-green algae blooms? -Biology

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Photosynthetic pigments found in algae? -Biology

Description : Photosynthetic pigments found in algae? -Biology

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Nutrition and reserved food materials in algae. -Biology

Description : Nutrition and reserved food materials in algae. -Biology

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What causes algae to be red in color? -Biology

Description : What causes algae to be red in color? -Biology

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