Plant kingdom

Chloroplasts of certain algal taxa such as Euglenophyta are surrounded by three membranes while, Heterokontophyta and Cryptophyta have four membranes. The chloroplasts present in these organisms is a result of secondary…

In plant growth and development, which of the following sequence of events is correct?

During evolution of plants from growth in aquatic habitats to growth on land, which of the following processes would have been important to the plant? I. Development of mechanisms for vertical growth II. Development of…

Which of the following are homosporous pteridophytes? I. Selaginella II. Lycopodium III. Salvinia IV. Equisetum

Assertion : In angiosperms, transport of food and water is more efficient than gymnosperms and pteridophytes. Reason : In angiosperms longitudinally arranged sieve elements and vessels with perforated end walls are…

Gametophyte and sporophyte are independent of each other in which of the following groups?

Which among the following is a rootless plant?

Algae are useful because they

Match the following and select the correct option.

Examine the figure below and select the right option giving all the four parts (A, B, C and (D) correctly identified. [image]\(\begin{array}{|l|l|} \hline & \text{A} & \text{B} & \text{C} & \text{D} \\ \hline \text{(a)}…

Match the plant with the kind of life cycle it exhibits: List-I List-II (a) Spirogyra (i) Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte (b) Fern (ii) Dominant haploid…

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)} &…