- Assertion : Flowers are modified shoot, which perform
sexual reproduction.
Reason : Different whorls of flower are arranged
successively on internodes.
- Assertion : The mangrove plants possess horizontal
cable roots.
Reason : Horizontal roots develop both upright aerial
roots and downward absorbing roots.
- Assertion : Viscum has non-green stems and leaves.
Reason : Viscum sends primary and secondary haustoria
into the host for absorbing food only.
- Assertion : Floral organs borne on thalamus are
commonly arranged in whorls.
Reason : Sepals protect floral organs while petals attract
pollinating insects.
Figure Based Questions
- Refer to the given floral diagram and answer the following
questions.
(a) State the characteristics of androecium and
gynoecium that can be inferred from the above given
floral diagram.
(b) Identify the plant and the family to which the floral
diagram belongs.
(c) Give any two economical importance of plants of this
family.
- Refer to the given L.S. of a fruit and answer the following
questions.
P
Q
R
S
T
(a) Identify P, Q, R, S and T.
(b) Which type of fruit is this?
(c) From which parts the outer hard covering and inner
papery white covering around the group of seeds are
formed in this fruit?
Match The Columns
- Match Column I with Column II.
Column I Column II
A. Ligule (i) Broadened hypopodium
that completely encloses
stem
B. Pulvinus (ii) Fused stipules that
surrounds the stem
C. Amplexicaul (iii) Outgrowth between leaf
base and lamina
D. Ochreate (iv) Swollen leaf base
- Match Column I with Column II. (There can be more than
one match for items in Column I).
Column I Column II
A. Hypogynous (i) Mustard
B. Epigynous (ii) Racemose
C. Perigynous (iii) Monoadelphous
D. Stamen (iv) Guava
E. Inflorescence (v) China rose
(vi) Cucumber
(vii) Diadelphous
(viii) Rose
(ix) Cymose
(x) Peach
Passage Based Question
- Complete the given passage with appropriate words or
phrases.
The monocotyledonous seeds possess a single (i) and are
generally (ii). The seed coat is membranous and (iii) with
the fruit wall. The main bulk of the grain is (iv) , which store
(v). Endosperm is separated from the embryo by a distinct
layer known as (vi). The embryo is small and occurs in a
groove at one end of the endosperm. It consists of one
shield-shaped cotyledon known as (vii) , an embryonal
short axis with (viii) and (ix). A sheath called (x) covers
the plumule. Likewise, the radicle is protected by (xi).
Assertion & Reason
In each of the following questions, a statement of Assertion (A)
is given and a corresponding statement of Reason (R) is given
just below it. Of the statements, mark the correct answer as :
(a) if both A and R are true and R is the correct explanation of A
(b) if both A and R are true but R is not the correct explanation of A
(c) if A is true but R is false
(d) if both A and R are false.
- Assertion : The leaves of Mimosa pudica are
bipinnate.
Reason : The pinnules are present on the rachillae,
arranged pinnately on primary axis.
