1. Gymnosperms
a) Are naked seeds plants
b) Have tap roots
c) Are heterosporous
d) All of these
Explanation: All of these
2. Which of the following are correct for gymnosperms?
I. Have adventitious root system.
II. The leaves in gymnosperms can withstand extreme temperature, humidity and wind.
III. Microspores are produced in microsporangia.
IV. They include medium or tall sized trees and shrubs.
a) I and III
b) I, II and III
c) II, III and IV
d) I and IV
Explanation: II, III and IV
3. In cycas
a) The stems are unbranched.
b) The pinnately compound leaves persist for years.
c) Have symbiotic association with n2 fixing cynobacteria.
d) All are correct.
Explanation: All are correct
4. Which of the following statements are correct for conifers?
I. Needle like leaves to reduce surface area.
II. Thick cuticle on leaves.
III. Sunken stomata to reduce water loss.
IV. The main plant body is gametophyte.
a) II and III
b) IV only
c) I only
d) II, I and III
Explanation: II, I and III
5. Which of the following are correct for gymnosperms?
I. They are heterosporous.
II. They are the first vascular plants.
III. Posses fruits
IV. Requires water for fertilization.
a) I
b) I and II
c) II and III
d) I, II, III and IV
Explanation: Only I is correct.
6. Which of the following sequence is correct?
a) Strobili–Sporophylls Sporangia Spores
b) Strobili–Sporangia Sporophylls Spores
c) Sporophylls–Strobili Sporangia Spores
d) Spores–Sporangia Strobili Cones
Explanation: Strobili–Sporophylls Sporangia Spores
7. Male gametophyte which is highly reduced and confined to only limited numbers of cells is
called
a) Antherozoid
b) Spermatozoid
c) Pollen grain
d) All of these
Explanation: Pollen grain
8. Male and female cones are formed on the same tree of
a) Cycas
b) Pinus
c) Both (a) and (b)
d) None of these
Explanation: Male and female cones are formed on the same tree of Pinus.
9. In gymnosperms
a) Pollen grains germinate inside the ovary.
b) The development of pollen grain takes place within the microsporangia.
c) The cones barring megasporophylls are called male cones or male strobili
d) All are correct
Explanation: The development of pollen grain takes place within the microsporangia.
10. Megaspore mother cell
a) Develops from one of the cell of nucleus
b) Forms four megaspore after meiosis
c) Formed in the megasporangium
d) All of these
Explanation: All of these