MCQ on Gymnosperms with Answers for NEET
This article leads you to Solve MCQ on gymnosperms which is an important topic important from the NEET standpoint and Other Entrance Exams. The MCQ below lists different topics with corresponding MCQ on gymnosperms, facilitating smooth learning and search experience.
Important Points to Remember about Gymnosperms
- Gymnosperm is a seed-producing plant and they do not produce flowers or fruits and have naked seeds.
- The gymnosperms are plants belonging to the Kingdom Plantae, Subkingdom Embryophyta that includes conifers, cycads, gnetophytes, and ginkgos.
- Some of the most recognizable examples of these woody shrubs and trees include pines, spruces, firs, etc. Gymnosperms are woody plants, either shrubs, trees, or, rarely, vines (some gnetophytes).
- The major difference between angiosperms and gymnosperms is how their seeds are developed. The seeds of angiosperms develop in the ovaries of flowers and are surrounded by a protective fruit.
- Gymnosperm seeds are usually formed in unisexual cones, known as strobila, and the plants lack fruits and flowers.
- Gymnosperms have much economic importance such as Pine, fir, spruce, and cedar are all examples of conifers that are used for lumber, paper production, and resin. Some other common uses of gymnosperms are in soap, varnish, nail polish, food, gum, and perfume products.
MCQ on Gymnosperms with Answers for NEET
1. Flowers and cones are similar because___________
(a) both assist in seed dispersal
(b) Both are responsible for attracting insects to pollinate
(c) Both are shiny and bright
(d) both are reproductive structures
Answer: d
Explanation: Flowers in angiosperms and cones in gymnosperms are both specialized reproductive structures that produce gametes and facilitate fertilization.
2. Another meaning of gymnosperm is______
(a) Nonvisible seeds
(b) Rounds seeds
(c) Wrinkled seeds
(d) Naked seed
Answer: d
Explanation: The term “gymnosperm” comes from Greek words “gymnos” (naked) and “sperma” (seed), referring to their unenclosed, exposed seeds.
3. The gymnosperms are ……………………… which means they produce different male and female spores.
(a) Homosporous
(b) Heterosporous
(c) Microspores
(d) Megaspores
Answer: b
Explanation: Gymnosperms are heterosporous, meaning they produce two types of spores—microspores (male) and megaspores (female).
4. This serves as a connecting link between the angiosperms and gymnosperms_________
(a) Gnetales
(b) Coniferales
(c) Ginkgoales
(d) Cycadales
Answer: a
Explanation: Gnetales show features similar to both angiosperms (vessels in xylem) and gymnosperms, making them a connecting evolutionary link.
5. Megasporangium in Gymnosperms is also called as____________
(a) Macrosporangiate
(b) Nucellus
(c) Microsporangium
(d) Male strobili
Answer: b
Explanation: The megasporangium, where the female gametophyte develops, is known as the nucellus in gymnosperms.
6. In gymnosperms, the ovules are not enclosed by any ovary wall and remain exposed
(a) only before fertilization
(b) only after fertilization
(c) both before and after seed discharge
(d) both before and after fertilization.
Answer: d
Explanation: Unlike angiosperms, gymnosperms have naked ovules that are exposed before and after fertilization.
7. In gymnosperms, the seeds that develop post-fertilization, are naked. It means_________
(a) not covered by any ovule wall
(b) they are very small
(c) they lose their wall at maturity
(d) not covered by any ovary wall
Answer: d
Explanation: Gymnosperm seeds are not enclosed within fruits since there is no ovary; they are directly exposed.
8. Gymnosperms are never_______
(a) medium-sized trees
(b) tall trees
(c) herbs
(d) shrubs
Answer: c
Explanation: Gymnosperms are never herbs; they are typically trees or shrubs.
9. One of the gymnosperms Sequoia is also called____
(a) the giant cedarwood
(b) the giant sandalwood
(c) the giant blackwood
(d) the giant redwood
Answer: d
Explanation: Sequoia is famously known as the giant redwood tree and is one of the tallest tree species in the world.
10. The roots in gymnosperms are generally __roots and in Cycas small specialised roots called are associated with N-fixing cyanobacteria.
(a) adventitious, coralloid roots
(b) tap, coralloid roots
(c) adventitious, mycorrhizal roots
(d) tap, haustorial roots
Answer: b
Explanation: Gymnosperms usually have tap roots. In Cycas, coralloid roots harbor nitrogen-fixing cyanobacteria.
11. Gymnosperms do not bear________
(a) Seeds
(b) Fruits
(c) Cones
(d) None of them
Answer: b
Explanation: Gymnosperms do not form fruits because they lack ovaries. Seeds remain exposed.
12. An autotrophic, prokaryotic, and nitrogen-fixing symbiont is present in__________
(a) Cicer
(b) Cycas
(c) Sequoia
(d) Pinus
Answer: b
Explanation: Coralloid roots of Cycas contain nitrogen-fixing cyanobacteria such as Nostoc, which are autotrophic and prokaryotic.
13. Pick the pair that is incorrectly matched_______
(a) Cycas – coralloid roots
(b) Abies – wood tar, wood gas
(c) Pinus – Mycorrhizal roots
(d) Sequoia – Redwood tree
Answer: b
Explanation: Abies is not known for wood tar or gas; this association is incorrect.
14. Phanerogams without the ovaries are________
(a) angiosperms
(b) pteridophytes
(c) gymnosperms
(d) all the above
Answer: c
Explanation: Gymnosperms are phanerogams (seed-producing plants) but lack ovaries; their ovules are exposed.
15. In gymnosperms, the male and the female gametophytes________
(a) do not have an independent free-living existence
(b) have an independent free-living existence
(c) do not remain within the sporangia retained on the sporophytes
(d) are unicellular
Answer: a
Explanation: In gymnosperms, gametophytes are not free-living; they develop within the sporangia and remain dependent on the sporophyte.
16. In gymnosperms, the pollen grain is released from the microsporangium and is carried_______
(a) by water
(b) in air currents
(c) by pollen tube
(d) all of these
Answer: b
Explanation: Pollination in gymnosperms is usually anemophilous (wind-mediated), so pollen grains are carried by air currents.
17. Which of the following is not a gymnosperm?
(a) Cycas
(b) Pinus
(c) Ginkgo
(d) Prunus
Answer: d
Explanation: Prunus (e.g., cherry, peach) is an angiosperm, not a gymnosperm.
18. In plants, the haploid plant body produces________
(a) spores by mitosis and meiosis
(b) gametes by meiosis
(c) spores by mitosis
(d) gametes by mitosis
Answer: d
Explanation: The haploid gametophyte produces gametes by mitosis as no further reduction division is needed.
19. In gymnosperms, haploid spores are produced by__________
(a) gametophyte
(b) sporophyte
(c) archegonia
(d) antheridia
Answer: b
Explanation: The diploid sporophyte produces haploid microspores and megaspores through meiosis.
20. Which among the following is incorrect?
(a) Some Gymnosperms have an algal association in their roots and it is termed mycorrhiza
(b) Leaves of Gymnosperms can be either simple / compound
(c) Gymnosperms have either branched / unbranched stems
(d) The roots in Pinus exist in the form of mycorrhiza
Answer: a
Explanation: The root-fungal association is mycorrhiza, not an algal one. This makes option (a) incorrect.
21. The stems are unbranched in_______
(a) Cedrus
(b) Cycas
(c) Pinus
(d) All gymnosperms
Answer: b
Explanation: Cycas typically has an unbranched stem, while others like Pinus and Cedrus show branching.
22. In Cycas the pinnate leaves persist for a few________
(a) days
(b) months
(c) hours
(d) years
Answer: d
Explanation: The pinnate leaves of Cycas are long-lived and persist for several years.
23. The leaves in gymnosperms are well-adapted to withstand extremes of temperature, humidity, and_______
(a) light
(b) soil
(c) wind
(d) all of these
Answer: c
Explanation: The tough, needle-like leaves with sunken stomata help gymnosperms resist wind and harsh climatic conditions.
24. In conifers, the needle-like leaves______
(a) withstand extremes of temperature
(b) have a thin cuticle and sunken stomata
(c) haploid microspores and megaspores
(d) reduce the surface area
Answer: b
Explanation: Needle-like leaves reduce water loss and are adapted with sunken stomata and thick cuticle.
25. The gymnosperms are heterosporous; they produce________
(a) diploid microspores and megaspores
(b) diploid microspores and haploid megaspores
(c) haploid microspores and diploid megaspores
(d) haploid microspores and megaspores
Answer: d
Explanation: Gymnosperms produce haploid microspores (male) and megaspores (female) through meiosis.
26. In gymnosperms, sporangia are borne on sporophylls which are arranged along an axis to form lax or compact strobila or cones.
(a) Oppositely
(b) spirally
(c) radially
(d) in whorl
Answer: b
Explanation: The sporophylls bearing sporangia are spirally arranged on cones or strobili in gymnosperms.
27. In gymnosperms, the microspores develop into a male gametophytic generation which is___________
(a) highly developed and is made of a large number of cells
(b) semi-/parasitic
(c) free-living
(d) highly reduced and is confined to only a limited number of cells
Answer: d
Explanation: The male gametophyte (pollen grain) in gymnosperms is highly reduced, consisting of few cells.
28. In gymnosperms, the reduced male gametophyte is called__________
(a) ovule
(b) zygote
(c) embryo
(d) pollen grain
Answer: d
Explanation: In gymnosperms, the pollen grain is the reduced male gametophyte responsible for carrying male gametes.
29. In gymnosperms, male or female cones are borne__________
(a) on the same tree
(b) on different trees
(c) on the same tree or different trees
(d) on the gametophytes
Answer: c
Explanation: Gymnosperms may be monoecious (both cones on one plant) or dioecious (cones on separate plants).
30. In gymnosperms, the megaspore mother cell is differentiated from one of the cells of the________
(a) nucellus
(b) archegonia
(c) envelope
(d) megaspores
Answer: a
Explanation: The megaspore mother cell arises from the nucellus tissue in the ovule.
31. In gymnosperms, a megaspore mother cell divides meiotically to form__________
(a) many megaspores
(b) one megaspore
(c) three megaspores
(d) Four megaspores
Answer: d
Explanation: The megaspore mother cell undergoes meiosis to produce four haploid megaspores, only one of which is functional.
32. In gymnosperms, female gametophyte bears_________
(a) one archegonia
(b) no archegonia
(c) two/more archegonia
(d) cones
Answer: c
Explanation: The female gametophyte in gymnosperms bears two or more archegonia, each with an egg cell.
33. Which among the following is the smallest gymnosperm?
(a) Cycas
(b) Pinus
(c) Zamia
(d) Gnetum
Answer: c
Explanation: Zamia pygmaea is the smallest known gymnosperm.
34. Vessels are found in________________
(a) all angiosperms and some gymnosperms
(b) most of the angiosperms and few gymnosperms
(c) all angiosperms and few gymnosperms and some pteridophytes
(d) all pteridophytes
Answer: b
Explanation: Vessels are mostly found in angiosperms, though a few gymnosperms like Gnetum and Ephedra possess them.
35. Which group of plants among the following produce seeds?
(a) Gymnosperms
(b) Pteridophytes
(c) Bryophytes
(d) Thallophytes
Answer: a
Explanation: Among the options, only gymnosperms produce seeds. The rest reproduce via spores.
Mcq on gymnosperms class 11, Mcq on gymnosperms with answers pdf, Mcq on gymnosperms with answers, Mcq on gymnosperms pdf download, MCQ on Cycas, MCQ on Pinus, Gymnosperms questions in NEET, Gnetum MCQ.