NEET Biology: Biology - Plant Kingdom questions with solutions

Q1. Read the following statements \( (A-E) \) and answer the question which follows them. (A) In liverworts, mosses, and ferns gametophytes are free-living. (B) Gymnosperms and some ferns are heterosporous. (C) Sexual reproduction in Fucus, Volvox and Albugo is oogamous. (D) The sporophyte in liverworts is more elaborate than that is mosses. (E) Both, Pinus and Marchantia are dioecious. How many of the above statements are correct?

1. One
2. Two
3. Three
4. Four

Answer: Three

Statements A, B, and C are correct. D is false because moss sporophytes are generally more elaborate than liverwort sporophytes, and E is false because Pinus is monoecious while Marchantia is dioecious. So the total number of correct statements is three.

Q2. Which of the following statement is incorrect?

1. All algae are microscopic
2. All algae are thalloid in nature.
3. Algae are most primitive plants
4. Algae possess both unicellular and multicellular eukaryotes

Answer: All algae are microscopic

The incorrect statement is that all algae are microscopic, because many algae are macroscopic, such as seaweeds. The other statements describe general features of algae: they are thalloid, primitive plant-like organisms, and include both unicellular and multicellular eukaryotes.