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300 questions in this collection · Page 3 of 30
Question 21 of 300
📘 CLASS XI
Biological Classification
Which fungi group reproduces vegetatively by fragmentation, completely lacks sex organs, but undergoes plasmogamy by the fusion of two somatic cells?
Basidiomycetes reproduce vegetatively by fragmentation, lack sex organs, and plasmogamy occurs through fusion of vegetative or somatic cells of compatible strains.
Question 22 of 300
📘 CLASS XI
Biological Classification
Plasmodium, the notorious malarial parasite, is classified under which protozoan group?
Plasmodium belongs to the sporozoans, a group of parasitic protozoans possessing an infectious spore-like stage and responsible for malaria.
Question 23 of 300
📘 CLASS XI
Biological Classification
Chemosynthetic autotrophic bacteria play a crucial role in:
Chemosynthetic autotrophic bacteria oxidise inorganic substances to obtain energy and recycle nutrients such as nitrogen, phosphorus, iron and sulphur.
Question 24 of 300
📘 CLASS XI
Biological Classification
Which of the following organisms has a cavity (gullet) that opens to the outside of the cell surface and uses the coordinated movement of cilia to steer food into it?
Paramoecium uses numerous cilia to direct food into a specialised feeding cavity called the gullet.
Question 25 of 300
📘 CLASS XI
Biological Classification
Which of the following is an example of an insectivorous plant?
Bladderwort is an insectivorous plant. Cuscuta is parasitic, while Mucor and Albugo are fungi.
Question 26 of 300
📘 CLASS XI
Biological Classification
Aristotle's early scientific basis for classification divided animals into two groups based on:
Aristotle divided animals into those with red blood and those without red blood using simple morphological characters.
Question 27 of 300
📘 CLASS XI
Biological Classification
Archaebacteria that are found in extreme salty areas are known as:
Halophiles are archaebacteria adapted to survive in extremely salty habitats.
Question 28 of 300
📘 CLASS XI
Biological Classification
Which of the following is true regarding Cyanobacteria?
Cyanobacteria possess chlorophyll a like green plants and are photosynthetic autotrophs.
Question 29 of 300
📘 CLASS XI
Biological Classification
Organisms in the group Chrysophytes that float passively in water currents are generally referred to as:
Most chrysophytes float passively with water currents and are collectively called plankton.
Question 30 of 300
📘 CLASS XI
Biological Classification
Golden algae are also known as:
Golden algae are commonly known as desmids and belong to the chrysophytes.