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Biological-Classification MCQs
Class XI Biology
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NCERT Based
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NEET Practice
📘 Concept Based
📝 Exam Level
🤖 AI Explanations
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300 questions in this chapter
Question 191 of 300
📘 CLASS XI
In fungi, the stage where two haploid hyphae of compatible mating types fuse their protoplasms but not their nuclei immediately is called:
Plasmogamy is the first step of sexual reproduction in fungi in which the cytoplasm fuses before nuclear fusion (karyogamy).
Question 192 of 300
📘 CLASS XI
Which class of fungi possesses a mycelium that is distinctly aseptate and coenocytic?
Members of Phycomycetes possess an aseptate, coenocytic mycelium.
Question 193 of 300
📘 CLASS XI
Saccharomyces, commonly known as yeast, is unique among Ascomycetes because it is:
Yeast (Saccharomyces) is a rare unicellular member of Ascomycetes.
Question 194 of 300
📘 CLASS XI
In Ascomycetes, the asexual spores called conidia are produced:
Conidia are produced exogenously on specialized hyphae called conidiophores.
Question 195 of 300
📘 CLASS XI
Mushrooms, bracket fungi and puffballs are common examples of which fungal class?
Mushrooms, bracket fungi and puffballs are characteristic members of Basidiomycetes.
Question 196 of 300
📘 CLASS XI
The imperfect fungi (Deuteromycetes) are so named because:
Deuteromycetes are called imperfect fungi because only their asexual stage is known.
Question 197 of 300
📘 CLASS XI
Cuscuta is placed in Kingdom Plantae but exhibits which type of atypical nutrition?
Cuscuta is a parasitic plant and is partially heterotrophic.
Question 198 of 300
📘 CLASS XI
Which group of organisms completely lacks a cell wall and stores food reserves as glycogen or fat?
Animal cells lack a cell wall and store reserve food mainly as glycogen or fat.
Question 199 of 300
📘 CLASS XI
When W.M. Stanley crystallized viruses in 1935, he discovered that these crystals consisted largely of:
Stanley demonstrated that viruses could be crystallized and that the crystals consisted largely of proteins.
Question 200 of 300
📘 CLASS XI
A bacteriophage (a virus that infects bacteria) typically possesses which type of genetic material?
Most bacteriophages are double-stranded DNA viruses.
