Algae are known to reproduce asexually b | Class 11 Biology Chapter Biological Classification, Biological Classification NCERT Solutions

Question:

Algae are known to reproduce asexually by variety of spores under different environmental conditions. Name these spores and the conditions under which they are produced.

Answer:

Algae reproduce asexually by various spores or propagules without involving the formation and union of gametes. The most common spores that are used, zoospores.

Types of asexual reproduction:

Zoospores: are motile and formed in favourable condition.
Aplanospores: are non- motile and produced under unfavourable condition.
Hypnospores: are thick- walled spores and formed under favourable condition.
Akinete: are from the vegetative cells, thick cell wall and produced under unfavourable condition.
Hormogonia: have gelatinous covering and formed in condition of drought.

1
0
0
Report?

Report a problem on Specifications:

Email id:

Comments

Next Question >

Popular questions of class 11 Biology

Q: Describe briefly the four major groups of Protozoa.

Q: Why are living organisms classified?

Q: State two economically important uses of: (a) Heterotrophic bacteria (b) Archaebacteria

Q: What is the difference between direct and indirect development?

Define a taxon. Give some examples of taxa at different hierarchical levels.

Q: Describe the important properties of enzymes.

What are the steps involved in formation of a root nodule?

Q: Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.

Q: How is a key helpful in the identification and classification of an organism?

Q: What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.

Recently Viewed Questions of Class 11 Biology

The common name of pea is simpler than its botanical (scientific) name Pisum sativum. Why then is the simpler common name not used instead of the complex scientific/ botanical name in biology?

How are organisms like Pseudomonas and Thiobacillus of great significance in nitrogen cycle?

What is the significance of vacuole in a plant cell?

Write down the common features of the connective tissue. On the basis of structure and function, differentiate between bones and cartilages.

Schematically represent primary, secondary and tertiary structures of a hypothetical polymer say for example a protein.

Plants require water for their survival. But when watered excessively, plants die. Discuss.

In Opuntia the stem is modified into a flattened green structure to performthe function of leaves (i.e., photosynthesis). Cite two other examples of
modifications of plant parts for the purpose of photosynthesis.

Which mouth part of cockroach is comparable to our tongue?

Biological classification is a dynamic and ever evolving phenomenon which keeps changing with our understanding of life forms. Justify the statement taking any two examples.

What is common to Nepenthes, Utricularia and Drosera with regard to mode of nutrition?

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

Read the question carefully and focus on the core concept being asked.
Reference examples and data from the chapter when answering questions about Biological Classification.
Review previous year question papers to get an idea of how such questions may be framed in exams.
Practice answering questions within the time limit to improve your speed and accuracy.
Discuss your answers with your teachers or peers to get feedback and improve your understanding.

Comments

Comment(s) on this Question

Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 1: Algae are known to reproduce asexually by variety of spores under different environmental condi....

Algae are known to reproduce asexually b | Class 11 Biology Chapter Biological Classification, Biological Classification NCERT Solutions

< Previous Question

Next Question >

Popular questions of class 11 Biology

Recently Viewed Questions of Class 11 Biology

Study Tips for Answering NCERT Questions:

Comments

Comment(s) on this Question

Chapters for Class 11 Biology

Subjects for Class 11

Students Also Read

Important links

Quick Links

Resources

Support