Introduction to angiosperms - class-XI
Description: introduction to angiosperms | |
Number of Questions: 47 | |
Created by: Amish Majumdar | |
Tags: botany kingdom plantae biology plant biology classification of plants plant kingdom |
In angiosperms, the chalazal megaspore undergoes mitosis how many times?
Identify the incorrect statement.
What are cotyledons?
Angiosperms were the first plants to have
.......... is an example of monocot.
The plants whose seeds have only one cotyledon are called as
Sunflower is a
An example of angiosperm (closed-seeded plant) is
Phanerogamae having vascular tissue and reproductive tissue
The plants whose seeds have two cotyledons are called as
Angiosperms are classified into
Maize is a __________.
Angiosperms are subdivided into two classes which are cotyledons and dicotyledons.
What is true of angiosperms?
Endosperm cell of an angiosperm has $24$ chromosomes. The number of chromosomes in the gametes would be.
In angiosperms, a mature male gametophyte is formed from a pollen mother cell through.
In angiosperms, formation of two male gametes from a pollen grain involves - divisions.
A natural sequence of developmental stages in the life cycle of an angiosperm is?
Centrospermae is regarded a natural order of angiosperms. All except two of its families contain the pigments that are collectively called battalions. Some of the families of the order are enumerated below. Which two families lack betalains?
a. Amaranthaceae
b. Aizoaceae
c. Chenopodiaceae
d. Caryophyllaceae
e. Mouginaceae
Select the correct answer using the codes given.
The male germ unit(MGU) in angiosperms comprises of __________________.
In angiosperms, which one of the following processes does NOT involve an unequal division?
In angiosperms during development of embryo, the suspensor cell develops from.
Which one induces agamospermy in Apple?
In an angiosperm, a female plant having $2n=24$ is crossed with a male plant having $2n=12$. What will be the chromosome number of endosperm.
In angiosperms, microsporogenesis and megasporogenesis.
Vessels are absent in which one of the following families of angiosperms?
Which fossil group formed the basis of Anthostrobilus theory of origin of angiosperms?
Consider the following statements associated with the germination of an angiosperm us seed.
a. As the seed gets hydrated and germinates. Enzymatic activity is increased.
b. The respiration rate of the germinating seed increases along with the increased enzymatic activity.
c. The increase in the respiratory rate continues till senescence.
Of the statements.
Consider the following floral characteristics.
a. Spirally arranged floral parts on the torus
b. Inferior ovary
c. Actinomorphic corolla
d. Stamens many
According to Hutchinson's concept, primitive angiosperm us flowers are characterized by.
Starting with microspore mother cells, what is the least number of meiotic and mitotic divisions needed for the formation of $500$ male gametes in an angiosperm?
A seed is
How many meiotic divisions are required to produce 250 pollen grains in an angiosperm?
Pinus/Cedrus Differs from angiospermic plants in the absence of ________________.
Find correct match
Column I Column II
a. Sinigrin (i) Liliaceae
b. Carthamin (ii) Brassicaceae
c. Atropine (iii) Solanaceae
d. Aloin (v) Asteraceae
The plant 'Hibisus' belongs to division _____
Consider the following statements:
(b) Monera is divided into Archaebacteria and Eubacteria.
(c) $Penicillium$ and Yeast both belong to group fungi.
The orchid plants, which are found growing on the trees, are
Umbrella plant is
Characteristic of series thalamiflorae is
Match Column - I with Column - II and select the correct option from the codes given below.
Column - I | Column - II |
---|---|
A. Thallophyta | 1. Marsilea |
B. Bryophyta | 2. Pinus |
C. Pteridophyta | 3. Ulothrix |
D. Gymnospermae | 4. Ficus |
E. Angiospermae | 5. Funaria |
Find out and select the incorrect pair from the following.
.............. are the reproductive organs of flowering plants.
Which of the following is an example of dicotyledon seed?
Cotyledons are also called as______________
Which among the following is the correct definition of monocots?
Angiosperms have____________