MCQ on Spirogyra: Biology is one of the most important and vital sections in NEET. It includes theories, descriptions, discoveries, diagrams, definitions, explanation of differences and relations. Most of the concepts covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12. Other related sources make up for the rest of the syllabus.

In this post we are providing you MCQ on Spirogyra, which will be beneficial for you in upcoming NEET, AIIMS, JIPMER, PGIMER, CBSE Board, ICSE Board, Class 12th, 11th.

MCQ on Spirogyra

Q1. Spirogyra reproduce sexually by _______.
a) fragmentation
b) conjugation
c) somatogamy
d) akinetes formation

Q2. Ribbon-shaped chloroplast is the characteristic feature of _______.
a) Spirogyra
b) Chlamydomonas
c) Riccia
d) Ulothrix

Q3. Which of the following is also known as pond silk ?
a) Ulothrix
b) Spirogyra
c) Nostoc
d) Anabaena

Q4. Find the incorrect match.
a) Nostoc – water blooms
b) Basidiomycetes – puffballs
c) Spirogyra – motile gametes
d) Sargassum – Chlorophyll

Q5. In Spirogyra, pyrenoids are present in _______.
a) cell wall
b) cytoplasm
c) nucleus
d) chloroplast

Q6. Which of the following is false about Spirogyra?
a) nucleolus is complex
b) heterothallism
c) each chloroplast contains a single pyrenoid
d)  chromosomes are polycentric

Q7. Which of the following does not have a sexual mode of reproduction?
a) Volvox
b) Spirogyra
c) Nostoc
d) Ulothrix

Q8. The ladder-like structure formed in Spirogyra is the result of _______.
a) Asexual reproduction
b) Direct conjugation
c) Lateral conjugation
d) Scalariform conjugation

Q9. The type of sexual reproduction in Spirogyra is _______.
a) isogamous
b) anisogamous
c) oogamous
d) cleistogamous

Q10. Spirogyra belongs to which of the following classes?
a) Chlorophyceae
b) Phaeophyceae
c) Cyanophyceae
d) Rhodophyceae

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By Team Learning Mantras