1.) In which of the following types of plants ovules are not enclosed by any ovary wall?
a) Angiosperms
b) Pteridophytes
c) Gymnosperms
d) Bryophytes
2.) In the term ‘Gymnosperm’, Sperms refer to:
a) Fruit
b) Stem
c) Seed
d) Root
3.) Which among the following gymnosperm trees, is known as one of the tallest tree species?
a)Sequoia
b)Pinus
c)Cycas
d)Ginkgo
4.) Which of the following include firs, Yews, Cedars, Redwoods, and Spruces?
a) Cycadophyta
b) Ginkgophyta
c) Coniferophyta
d) Gnetophyta
5.) In which among the following examples needle-like leaves with thick cuticle and sunken stomata are seen?
a) Cycads
b) Conifers
c) Gingkoes
d) Gnetophytes
6.) Identify the INCORRECT statement.
a) According to the Eichler, gymnosperms are Phanerogams.
b) Gymnosperms are divided into four phyla.
c)Ginkgo biloba comes under the phyla Ginkgophyta.
d) Root system of gymnosperms is similar to monocot stem
7.) The male strobili contains which of the following?
a) Megasporangia
b) Pecosporangia
c) Microsporangia
d) Ctenosporangia
8.) In the evolution, aneurophytales are came from the:
a) Progymnosperms
b) Pteridosperms
c) Archaepteridales
d) All of them
9.) In which of the following examples of gymnosperms, the male and the female strobili are borne on different trees?
a) Cycas
b) Pinus
c) Wollemia
d) Cedrus
10.) Which of the following pair is incorrect?
a) Seed germination- depends on gametophyte
b) Gymnosperms- Without fruits
c) Double fertilization in gymnosperm- Absent
d) Heterosporous- two types of spores
11.) Match List-I with List-II
List-I | List-II | ||
(a) | Microsporangiate | (i) | Male and female cones on different trees |
(b) | Megasporangiate | (ii) | Male strobili |
(c) | Pinus | (iii) | Female strobili |
(d) | Cycas | (iv) | Male and female cones on the same tree |
(a) (b) (c) (d)
a) (ii) (i) (iv) (iii)
b) (ii) (iii) (iv) (i)
c) (iii) (i) (ii) (iv)
d) (iii) (ii) (iv) (i)
12.) Cones form:
a) Male organs
b) Female organs
c) Not male neither female organs
d) Both male and female organs
13.) Which of the following is an INCORRECT statement regarding the general characteristics of gymnosperms?
a) They possess naked seeds
b) They include medium-sized trees, tall trees and shrubs
c) They generally possess fibrous roots
d) The stems can be branched or unbranched
14.) The word Conifer refers to:
a) Cone remover
b) Cone destroyer
c) Cone bearer
d) Cone producer
15.) In Cycas, the small specialised roots are associated with N₂-fixing cyanobacteria. What are these kinds of root called?
a) Tap root
b) Coralloid root
c) Mycorrhiza
d) Fibrous root
16.) Cycads belongs to Class:
a) Cycadophyta
b) Cycadales
c) Cycadaceae
d) Cycadopsida
17.) In case of Gymnosperms, what is the ploidy of the microspores and megaspores produced by them?
a) Haploid
b) Diploid
c) Triploid
d) None of the above
18.) Biloba is a Latin word which means:
a) Single leaf
b) Double leaf
c) Three leaf
d) Five leaf
19.) The nucellus is protected by envelopes and the composite structure is called ……………………………………………………………………………………?
a) Shell
b) Spines
c) Ovule
d) Seed coat
20.) When odd downward growth is seen in the old trees then it is known as:
a) Chichi
b) Michi
c) Lichi
d) Kichi
21.) Which among the following characteristics is NOT helpful in reducing the water loss from the plant body?
a) Thick cuticle
b) Sunken stomata
c) Needle-like leaves
d) Broad leaves
22.) Ephedra is also called as:
a) Mormon tea
b) Rancid butter
c) Silver leaf
d) Palm leaf
23.) Which of the following statements is NOT correct with respect to reproduction in Gymnosperms?
a) Spores are produced within sporangia that are borne on sporophylls
b) The strobili bearing microsporangia and microsporophylls are the male strobili
c)The female strobili bearing megasporangia are called microsporangiate
d) Development of pollen grains takes place within microsporangia
24.) Which of the following species have the largest leaves in the kingdom Plantae?
a)Cucumis sativas
b)Daucas carota
c)Welwitschia mirabilis
d)Crassula ovata
25.) Which of the following is NOT an example of Gymnosperm plants?
a)Marchantia
b)Cycas
c)Gingko
d)Pinus
26.) Which of the following are called as Chilgoza?
a) Seeds of Pinus gerardian
b) Gnetum seeds
c) Carota seed
d) Both a) and b)
27.) Choose the incorrect pair.
a) Archegonia → female sex organ
b) Pollen grain → Megasporangia
c) Female strobili → Macrosporangiate
d) Ovule → Megasporophylls
28.) …………………………………………………………………………. Is used as an antidote against snake bite.
a) Ephedra
b) Cycas guns
c) Ephedrine
d)Kaffir
29.) In gymnosperms, the microspores develop into a male gametophytic generation which is highly reduced and is confined to only a limited number of cells. What is this reduced gametophyte called?
a) Pollen grain
b) Sperm
c) Sporozoite
d) Porin
30.) The conifers …………………………………………………………………………… is resistant to insects and fungus.
a) Woods
b) Fruits
c) Flower
d) Seeds
Answers:
1.)
Solution:(c) Gymnosperms
Gymnosperms are the plants in which the ovules are not enclosed by any ovary wall.
2.)
Solution:c) Seed
In the Gymnosperm term, Gymnos refers to Naked and Sperms refer to Seed. Which means gymnosperms are naked seed
3.)
Solution: (a) Sequoia
Sequoia, the giant redwood treeis known as one of the tallest tree species.
4.)
Solution:c) Coniferophyta
The Conifer include the cone which is a group of scale-like sporophylls, Pines and other species are included in the phyla Coniferophyta.
5.)
Solution:(b) Conifers
In conifers, needle-like leaves are present that reduce the surface area and have thick cuticle and sunken stomata.
6.)
Solution:d) Root system of gymnosperms is similar to monocot stem
Root system of the gymnosperm is similar to a dicot stem.
7.)
Solution:(c) Microsporangia
The microsporangiate and the male strobili bears microsporophylls and microsporangia.
8.)
Solution:a) Progymnosperms
Aneurophytales give rise to both pteridosperms and Archaepteridales. Aneurophytales are came from Progymnosperms.
9.)
Solution:(a) Cycas
In Cycas, the male cones and the female cones are borne on different trees. Hence, they are called dioecious.
10.)
Solution:a) Seed germination- depends on gametophyte
Seed germination- depends on gametophyte. Here, Germination of seed give rise to an independent sporophyte.
11.)
Solution:b) (ii) (iii) (iv) (i)
Male strobili is called microsporangiate and the female strobili is called megasporangiate. Pinus is monoecious while Cycas is dioecious.
12.)
Solution: d) Both male and female organs
Cones are also known as Strobili. They form both male and female reproductive organs.
13.)
Solution:(c) They generally possess fibrous roots
Gymnosperms generally possess tap roots. Some roots have fungal association and some are associated with cyanobacteria.
14.)
Solution:c) Cone bearer
Conifers show common distinct characteristic as a cone bearer. So, Conifer refers to ‘Cone bearer’.
15.)
Solution: (b) Coralloid root
Some species of gymnosperms like Cycas have small specialised root called coralloid roots that are associated with N₂-fixing cyanobacteria.
16.)
Solution:d) Cycadopsida
Cycads belongs to family Cycadaceae, order Cycadales, class Cycadopsida and phylum Cycadophyta
17.)
Solution:(a) Haploid
Gymnosperms produce haploid microspores and megaspores. They are hence heterosporous.
18.)
Solution:b) Double leaf
In the Ginkgo biloba, Ginkgo is a Chinese word which means silver apricot. Biloba is a Latin word which means ‘Double leaf’.
19.)
Solution:(c) Ovule
The nucleus whose cells differentiate into megaspore mother cell, is protected by an envelope and the composite structure is called an ovule.
20.)
Solution:a) Chichi
When odd downward growth is seen in the old trees then it is known as chichi. This growth is shown by damaged stem.
21.)
Solution:(d) Broad leaves
To reduce the water loss, some plants develop characters like sunken stomata, thick cuticle, and needle-like leaves.
22.)
Solution:a) Mormon tea
Ephedra species belongs to phylum Gnetophyta. Ephedra are also called as Joint firs or Mormon tea.
23.)
Solution:(c) The female strobili bearing megasporangia are called microsporangiate T
The female strobili bearing the megasporangia are called Macrosporangiate.
24.)
Solution:c) Welwitschia mirabilis
The leaves of Welwitschia mirabilis are larger and grow perennially. They are seen in South Western Africa.
25.)
Solution:(a) Marchantia
Marchantia is an example of bryophytes. But Cycas, Pinus, and Gingko are the examples of gymnosperms.
26.)
Solution:d) Both a) and b)
Seeds of both Pinus gerardian and Gnetum are edible. And, are called as Chligoza.
27.)
Solution:(b) Pollen grain → Megasporangia
The development of pollen grains takes place within the microsporangia. Archegonia is the female sex organ. Ovules are borne on megasporophylls.
28.)
Solution:b) Cycas guns
Cycas guns is the correct answer. It helps to cure malignant ulcer. Cycas guns is used as an antidote against snake bite.
29.)
Solution:(a) Pollen grain
The reduced gametophyte is called the pollen grain. And the development of pollen grains takes place within the microsporangia.
30.)
Solution:a) Woods
The gymnosperms woods are light weight and are resistant to insects and fungus. Woods of gymnosperms are beneficial in furniture settings.