All Free Biology MCQs with Answers

• A. Prothallus
• B. Saprophyte
• C. Micro gametophyte
• D. Mega gametophyte

Explanation: When a pollen grain germinates, it develops into a micro gametophyte, which carries the male gametes (sperm cells) for fertilization.

• A. Funaria
• B. Polytrichum
• C. Sphagnum
• D. Club mosses

Explanation: Club mosses, also known as Lycopodiopsida or Lycophytes, are a distinct group of plants that are not classified as mosses.

• A. Fabaceae
• B. Solanaceae
• C. Poaceae
• D. Mimosaceae

Explanation: The correct answer is Poaceae. Wheat, maize, and rice belong to the Poaceae family, commonly known as the grass family, due to their…

• A. Psilopsida
• B. Sphenopsida
• C. Pteropsida
• D. Lycopsida

Explanation: Among the options given, the pioneer group to develop true roots and true leaves is Pteropsida.Pteropsida: This group includes ferns…

• A. Sphenopslda
• B. Psilopsida
• C. Pteropsida
• D. Lycopsida

Explanation: Equisetum, commonly known as horsetail, is a genus of vascular plants that is a living member of the division Sphenopsida.

• A. Rose
• B. Potato
• C. Apple
• D. Pea

Explanation: Peas have zygomorphic flowers with bilateral symmetry, as it does not possess actinomorphic flowers.

• A. Liver wort
• B. Equisetum
• C. Funaria
• D. Polytrichum

Explanation: Equisetum, also known as horsetails, are not gametophyte plants. They have a dominant sporophyte stage in their life cycle.

• A. Total parasite
• B. Total saprophyte
• C. Partial parasite
• D. Partial saprophyte

Explanation: Monotropa is a total saprophyte. It obtains its nutrients entirely from decaying organic matter in the soil, and it does not perform…

• A. Pollen grains
• B. Stamens
• C. Pollen sacs
• D. Female cone

Explanation: Pollen sacs, also known as microsporangia, are structures found within the anthers of stamens.

• A. Psilopsida
• B. Sphenopsida
• C. Lycopsida
• D. Pleropsida

Explanation: The correct answer is Lycopsida. Club-mosses belong to the class Lycopsida, which is a group of vascular plants that have microphylls and…

• A. panicle
• B. multiparous cyme
• C. capitulum
• D. umbel

Explanation: A panicle is a branched inflorescence in which each branch has more than one flower.

• A. Adlantum
• B. Pinus
• C. Marchantia
• D. Mustard-plant

Explanation: Bryophytes (mosses, liverworts and hornworts) have dominant gametophyte phase on which the adult sporophyte is depended for nutrition.

• A. Embryo-Sac
• B. Embryo
• C. Seed
• D. Male gametophyte

Explanation: The functional megaspore grows into an Embryo sac in angiosperms.

• A. Lathyrus odoratus
• B. Solanum nigrum
• C. Zea mays
• D. Avena sativa

Explanation: Zea-Mays (corn) are a monoecious plant, a hermaphrodite, where both the male and female reproductive parts are present in the same plant.

• A. Zygote
• B. Sporophyte
• C. Gametophyte
• D. Prothalus

Explanation: Released spores grow into a gametophyte which is a very small heart shaped structure.

• A. Club Mosses
• B. Funaria
• C. Liver-Worts
• D. Horn-Worts

Explanation: In Club mosses also called lycopsids, the gametophyte is mainly underground.

• A. Ulva
• B. Funaria
• C. Marchantia
• D. Polytrichum

Explanation: Funaria (cord moss) is a bryophyte. Funaria is monoecious and autoecious i.e., male and female reproductive structures develop on…

• A. Clmerous
• B. Trimerous
• C. Tetramerous
• D. Pentamerous

Explanation: Flowering plants are divided into two broad groups by botanists: monocots and dicots.

• A. Adiantum
• B. Funaria
• C. Marchantia
• D. Angiosperms

Explanation: Angiosperms, also called flowering plants, are about 300,000 species of flowering plants, the largest and most diverse group within the…

• A. Selaginella
• B. Equisetum
• C. Lycopodium
• D. Lepidodendron

Explanation: The phenomenon of the development of two types of spores (differing in size, structure, and function) by the same species is known as…