Plant Kingdom NEET MCQ

1. Bryophytes are often referred to as:

a) Vascular plants
b) Amphibians of the plant kingdom
c) Angiosperms
d) Gymnosperms

Answer:

b) Amphibians of the plant kingdom

Explanation:

Bryophytes are called amphibians of the plant kingdom because they need water for their reproductive processes.

2. In gymnosperms, the male reproductive structure is:

a) Ovule
b) Cones
c) Microsporangia
d) Antheridia

Answer:

c) Microsporangia

Explanation:

In gymnosperms, male reproductive structures are microsporangia that produce pollen grains.

3. Ferns belong to the group:

a) Bryophyta
b) Pteridophyta
c) Thallophyta
d) Spermatophyta

Answer:

b) Pteridophyta

Explanation:

Ferns are vascular plants without seeds and belong to the division Pteridophyta.

4. The process of fusion of two gametes which are dissimilar in size is termed:

a) Fusion
b) Syngamy
c) Anisogamy
d) Isogamy

Answer:

c) Anisogamy

Explanation:

Anisogamy refers to the fusion of two gametes that are dissimilar in size.

5. Which among the following is a seedless vascular plant?

a) Moss
b) Pine
c) Fern
d) Mango

Answer:

c) Fern

Explanation:

Ferns are vascular plants that do not produce seeds.

6. The dominant phase in the life cycle of a moss is:

a) Gametophyte
b) Sporophyte
c) Zygote
d) Sporangia

Answer:

a) Gametophyte

Explanation:

In mosses, the gametophyte is the dominant and independent phase of the life cycle.

7. Which group of plants shows alternation of generations?

a) Algae
b) Bryophytes
c) Pteridophytes
d) All of the above

Answer:

d) All of the above

Explanation:

Alternation of generations is a feature observed in algae, bryophytes, and pteridophytes.

8. Vascular tissues are absent in:

a) Mosses
b) Ferns
c) Conifers
d) Flowering plants

Answer:

a) Mosses

Explanation:

Mosses, being bryophytes, lack vascular tissues like xylem and phloem.

9. Which part of the pine tree produces pollen grains?

a) Female cone
b) Male cone
c) Leaf
d) Stem

Answer:

b) Male cone

Explanation:

In pine trees, the male cones produce pollen grains.

10. In angiosperms, the seeds are enclosed within:

a) Ovule
b) Anther
c) Fruit
d) Cone

Answer:

c) Fruit

Explanation:

In angiosperms, the ovules develop into seeds which are enclosed within a fruit.

11. Cycas and Pinus differ in:

a) Having seeds
b) Being vascular plants
c) Presence of flowers
d) Having leaves

Answer:

c) Presence of flowers

Explanation:

Cycas and Pinus are both gymnosperms, but they differ in their reproductive structures, with neither having true flowers.

12. Which among the following is a characteristic feature of monocots?

a) Four or five floral parts
b) Vascular bundles scattered in stem
c) Two cotyledons
d) Presence of secondary growth

Answer:

b) Vascular bundles scattered in stem

Explanation:

Monocots have scattered vascular bundles in the stem, unlike dicots.

13. The study of classification of organisms is called:

a) Nomenclature
b) Systematics
c) Taxonomy
d) Anatomy

Answer:

c) Taxonomy

Explanation:

Taxonomy deals with the classification, nomenclature, and identification of organisms.

14. Naming a plant is called

a) Systematic botany
b) Nomenclature
c) Taxonomy
d) Cytology

Answer:

b) Nomenclature

Explanation:

Nomenclature refers to the process of assigning a name to an organism, following a set of rules and guidelines. In botanical context, the International Code of Nomenclature for algae, fungi, and plants (ICN) provides these rules.

15. Number of series in Polypetalae are

a) 2
b) 3
c) 4
d) 5

Answer:

c) 4

Explanation:

In the Bentham and Hooker classification system, the subclass Polypetalae (under Dicotyledons) is divided into four series: Thalamiflorae, Disciflorae, Calyciflorae, and Corolliflorae based on the position and arrangement of floral organs.

16. Polyadelphous condition is found in

a) Leguminosae
b) Rutaceae
c) Compositae
d) Liliaceae

Answer:

a) Leguminosae

Explanation:

In the family Leguminosae (specifically in the subfamily Faboideae), the stamens are often fused into bundles, leading to a polyadelphous condition where multiple stamens are united in more than two groups.

17. Synandrous condition is common in the family:

a) Umbelliferae
b) Rosaceae
c) Malvaceae
d) Cucurbitaceae

Answer:

d) Cucurbitaceae

Explanation:

In the family Cucurbitaceae, the stamens are often fused, leading to a synandrous condition where multiple stamens are united. This is a distinguishing characteristic of this family.

18. Indefinite stamens are characteristic of family:

a) Malvaceae
b) Gramineae
c) Labiatae
d) Cruciferae

Answer:

a) Malvaceae

Explanation:

The family Malvaceae typically possesses flowers with indefinite or numerous stamens. The stamens are often fused into a tube around the style. This characteristic is one of the key features that differentiates Malvaceae from many other plant families.

19. Systematics deals with:

a) Identification of Organism
b) Classification of organisms
c) The kinds and diversity of all organisms and the existing relationships amongst themselves
d) Identification, naming, and classification of both plants and animals

Answer:

c) The kinds and diversity of all organisms and the existing relationships amongst themselves

Explanation:

Systematics encompasses the complete study of organisms, including their diversities and the relationships among them. It does involve classification, identification, and naming, but it primarily focuses on understanding the evolutionary relationships among organisms.

20. One of the best methods for understanding general relationships of plants is:

a) Cytotaxonomy
b) Experimental Taxonomy
c) Numerical Taxonomy
d) Chemotaxonomy

Answer:

c) Numerical Taxonomy

Explanation:

Numerical taxonomy uses a large number of characteristics for the assessment of resemblances and differences. It employs mathematical techniques and computers, thereby providing an objective means of determining relationships between different plant taxa.

21. The chief merit of Bentham and Hooker’s classification is that:

a) it is a natural system of classification of all group of plants
b) a system based on evolutionary concept
c) it also considered the phylogenetic aspect
d) The description of taxa are based on actual examination of the specimens

Answer:

d) The description of taxa are based on actual examination of the specimens

Explanation:

Bentham and Hooker’s system of classification, which they described in their work “Genera Plantarum,” was based on the actual examination of plant specimens. This meticulous approach added authenticity and reliability to their classification.

22. Linnaeus is credited with introducing:

a) The concept of inheritance
b) Law of limiting factor
c) Theory of heredity
d) Binomial nomenclature

Answer:

d) Binomial nomenclature

Explanation:

Carolus Linnaeus is renowned for developing the binomial system of nomenclature where each species is given a two-part name: the first name is the genus, and the second is the species.

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