Plant Kingdom PYQ

In bryophytes, the gemmae help in which one of the following?

The correct sequence of events in the life cycle of bryophytes is A. Fusion of antherozoid with egg. B. Attachment of gametophyte to substratum. C. Reduction division to produce haploid spores. D. Formation of sporophyte. E. Release of antherozoids into water. Choose the correct answer from the options given below :

Which one of the following is the characteristic feature of gymnosperms?

Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage B. Meiosis in spore mother cells C. Fertilisation D. Formation of archegonia and antheridia in gametophyte. E. Transfer of antherozoids to the archegonia in presence of water. Choose the correct answer from the options given below:

Match List-I with List-II. $\begin{array}{|l|l|l|l|}\hline & \text{List-I} & & \text{List-II} \\\hline \text{A}. & \text{Pteridophyte} & \text{(I)} & \text{Salvia} \\\hline \text{B.} & \text{Bryophyte} & \text{(II)} & \text{Ginkgo} \\\hline \text{C.} & \text{Angiosperm} & \text{(III)} & \text{Polytrichum} \\\hline \text{D.} & \text{Gymnosperm} & \text{(IV)} & \text{Salvinia} \\\hline\end{array}$ Choose the option with all correct matches.

Which one of the following is not found in Gymnosperms?

Identify the incorrect pair :

Which of the following is the correct match?

Match List-I with List-II.  Choose the correct answer from the options given below :

Which classes of algae possess pigment fucoxanthin and pigment phycoerythrin, respectively?

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The first stage of gametophyte in the life cycle of moss is protonema stage. Reason (R): Protonema develops directly from spores produced in capsule. In the light of the above statements, choose the correct answer from the options given below:

Identify the pair of heterosporous pteridophytes among the following:

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R : Assertion A : In gymnosperms the pollen grains are released from the microsporangium and carried by air currents. Reason R: Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed. In the light of the above statements, choose the correct answer from the options given below:

Read the following statements and identify the characters related to the alga shown in the diagram: (a) It is a member of Chlorophyceae (b) Food is stored in the form of starch (c) It is a monoecious plant showing oogonium and antheridium (d) Food is stored in the form of laminarin or mannitol (e) It shows dominance of pigments chlorophyll a, c and Fucoxanthin. Choose the correct answer from the options given below : 

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R) : Assertion (A) : Spirulina is a microbe that can be used for reducing environmental pollution. Reason (R) : Spirulina is a rich source of protein, carbohydrates, fats, minerals and vitamins. In the light of the above statements, choose the most appropriate answer from the options given below:

Match the plant with the kind of life cycle it exhibits: <table class="pyq-table"><tbody><tr><td></td><td>List-I</td><td></td><td>List-II</td></tr><tr><td>(a)</td><td>Spirogyra</td><td>(i)</td><td>Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte</td></tr><tr><td>(b)</td><td>Fern</td><td>(ii)</td><td>Dominant haploid free-living gametophyte</td></tr><tr><td>(c)</td><td>Funaria</td><td>(iii)</td><td>Dominant diploid sporophyte alternating with reduced gametophyte called prothallus</td></tr><tr><td>(d)</td><td>Cycas</td><td>(iv)</td><td>Dominant haploid leafy gametophyte alternating with partially dependent mutlicellular sporophyte</td></tr></tbody></table>Choose the correct answer from the options given below:

Match List - I with List - II :  Choose the correct answer from the options given below :

Which of the following is incorrectly matched?

Hydrocolloid carrageen is obtained from:

Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as:

Which of the following plants is monoecious?

Gemmae are present in:

Which of the following algae produce carrageen?

Which of the following algae contains mannitol as reserve food material?