Protista MCQs : This section focuses on the "Protista" in Biology Class 11. These Multiple Choice Questions (MCQs) should be practiced to improve the Biology Class 11 skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Protists are simple eukaryotic organisms that are?
D. None of the above
Explanation: Protists are simple eukaryotic organisms that are neither plants nor animals or fungi.
Protists are unicellular in nature.
C. Can be true or false
D. Can not say
Explanation: True,Protists are unicellular in nature but can also be found as a colony of cells
Which of the following are Characteristics of Kingdom Protista?
A. These are usually aquatic, present in the soil or in areas with moisture
B. Most protist species are unicellular organisms
C. Parasitism is also observed in protists
D. All of the above
Explanation: All of the above are Characteristics of Kingdom Protista.
Malarial parasite and Plasmodium example of ?
Explanation: Sporozoans : These organisms are so-called because their life cycle has a spore-like stage. For example, the malarial parasite, Plasmodium.
Which of the following protozoans found in water bodies, either fresh or saline?
Explanation: Amoeboid protozoans : Mostly found in water bodies, either fresh or saline.
Protists survive in ________
A. dry desert
B. aquatic regions
C. dry mountains
D. hot hills
Explanation: Protists survive in aquatic regions. They can either survive in fresh water lakes, large oceans, deep seas and marshy areas etc. This is because their body is adapted to survive in areas with low oxygen concentration
Which among the following comprises of animal like protists?
C. Slime molds
Explanation: Since, Protozoans are mobile and can ingest food into their body they resemble animals. Some of the protozoans follow holozoic nutrition like that of animals. Therefore, Protozoans are animal like protists.
Euglenoids are flexible due to ___________
Explanation: Euglenoids have a protein rich layer called pellicle which makes their body flexible. Euglenoids have two flagella that help in their movement. Euglena changes its body shape during its movement and this phenomenon called as metaboly is possible due to pellicle.
Which among the following are saprophytic protists?
D. Slime moulds
Explanation: Slime moulds are considered to be fungus like protists since they grow in moulds and reproduce using spores. But there are many differences between Slime moulds and fungi. Unlike fungi, slime moulds lack chitin in their cell wall and are mobile.
Slime moulds are saprophytic organisms.
C. Can be yes or no
D. Can not say
Explanation: Yes, Slime moulds are saprophytic organisms.