Plant Kingdom

Carrageen, a hydrocolloid, is extracted from:

Members of which class are commonly called 'seaweeds' and produce brown pigments?

Which of the following is a characteristic of algae reproduction?

The red algae appear red because they occur in which part of the ocean where little light penetrates?

Which of the following pigments is common to all three classes of algae: Chlorophyceae, Phaeophyceae, and Rhodophyceae?

The plant body of red algae is usually:

Identify the characteristic storage product found in $\textit{Polysiphonia}$.

Which of the following taxonomic groups of algae contains members with a 'girdle-shaped' or 'C-shaped' chloroplast?

Which of the following red algae is edible and is popularly used in the preparation of 'Nori' in Japan?

In the evolution of land plants from algae, which of the following is considered a key biochemical evidence found in the Chlorophyceae?

The sporophyte of mosses contains a capsule which produces spores that germinate into:

In Marchantia, gemmae are produced in:

Which of the following provides food for herbaceous mammals and birds?

The antherozoids of bryophytes are released into:

In the life cycle of mosses like $Funaria$, the gametophyte transitions from a filamentous protonema to an upright leafy stage. Based on the flowchart below, which of the following correctly describes the position of the sex organs in the 'Leafy Stage'?

Which of the following is a common example of a moss that forms a dense carpet on the forest floor?

In mosses, the secondary protonema is formed from:

In $Marchantia$, the air pores on the upper surface of the thallus are associated with which internal structure?

Which of the following best describes the ecological significance of mosses in preventing soil erosion?

The 'venter' and 'neck' are parts of the archegonium. Which of the following is true about the neck canal cells (NCC) and venter canal cells (VCC) in a mature archegonium?

Pteridophytes are also called 'Botanical Snakes' by some biologists because they were the first plants to:

The rhizome in many ferns is a type of:

Which of the following is a characteristic of Pteridophytes but NOT Bryophytes?

In heterosporous ferns, the female gametophyte is retained on the parent sporophyte for variable periods. This is significant for the evolution of:

Which of the following represents the correct ploidy transition during the formation of the prothallus from the sporophyte?

Which of the following Pteridophyte genera is considered a 'living fossil' and shows very primitive features like a lack of true roots and leaves?

In heterosporous Pteridophytes, where does the development of the female gametophyte take place?

The presence of a 'Siphonostele' with leaf gaps is a characteristic advancement in which group?

How many functional megaspores are typically produced in each megasporangium of the aquatic fern Marsilea?

The 'trabeculae' in Selaginella are modified:

Gymnosperms are often called 'Phanerogams without ovary' because they have:

Winged pollen grains, which aid in dispersal, are typically found in:

Which of the following tissues in the gymnosperm ovule is diploid ($2n$)?

Identify the gymnosperm that has a very small size, almost resembling a fern.

Which of the following features is shared by both Cycas and Pinus?

The term 'Gymnosperm' is derived from Greek words which literally mean:

In $Pinus$, the male cones are found in clusters at the:

Why is the term 'Phanerogams without ovary' often used to describe Gymnosperms?

The vascular bundles in the leaf of Cycas are characterized as:

Which of the following describes the 'Endosporic' nature of the gametophyte in gymnosperms?

Which of these tissues provides nourishment to the developing embryo in angiosperms?

A mature pollen grain in angiosperms usually contains how many cells when it starts germinating on the stigma?

In angiosperms, the sporophyte develops from the:

The tiny opening through which the pollen tube usually enters the ovule is called the:

What is the biological significance of double fertilization in angiosperms?

In the angiosperm life cycle, what process occurs within the anthers to produce microspores?

Which of the following describes the nature of vascular bundles in a monocot stem?

The term 'angiosperm' literally means 'enclosed seed'. This enclosure is provided by the:

A flowering plant with a 'tetramerous' flower and 'reticulate' venation most likely possesses:

Which of the following statements about the 'diplontic' life cycle of angiosperms is correct?

The alternation of generations involves the shift between a spore-producing phase and a:

Which of the following is NOT a haplo-diplontic plant?

Which of these groups has a highly reduced gametophyte dependent on the sporophyte?

In Chlamydomonas, the dominant phase in the life cycle is:

In the diplontic life cycle of an angiosperm, what is the ploidy of the microspore mother cell?

The gametophyte of a pteridophyte (prothallus) requires which environmental condition to grow?

Which of the following algae is an exception to the haplontic life cycle and shows a diplontic pattern?

Which of the following statements regarding the life cycle of Cycas is FALSE?

In the life cycle of ferns, what ensures that cross-fertilization is favored despite the prothallus being monoecious?

The sexual reproduction in Spirogyra is characterized by 'conjugation'. Which stage of the life cycle is formed immediately following this process?