Morphology of Flowering Plants Test 75

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Morphology of Flowering Plants Test 75

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Weekly Quiz Competition

Question 1
1 / -0

Veins are _________ strands on the lamina.

A
Conducting

B
Transpirational

C
Exceptional

D
Flattened

Solution

Veins provide support for the leaf and transport both water and minerals (via xylem) and food energy (via phloem) through the leaf and on to the rest of the plant and hence are conducting in their function.
So, the correct option is 'Conducting'.
Question 2
1 / -0

Inflorescence with thick, fleshy axis and large coloured bracts is

A
Spathe

B
Spadix

C
Spikelet

D
Hypanthodium

Solution

(A) Spathe - It is a large sheathing bract enclosing the flower cluster of certain plants.
(B) Spadix - These are spike of minute flowers closely arranged in a fleshy axis.
(C) Spikelet - It is the basic unit of a grass flower, consisting of two glumes or outer bracts.
(D) Hypanthodium - It is a special type of inflorescence.
So, the correct option is 'Spathe'
Question 3
1 / -0

Family Liliaceae?

A

B

C

D

Solution

The flowers of liliaceae have 3 sepals, 3 petals, 6 stamens and a syncarpous gynoecium of 3 carpels; the overy can be superior or inferior. In a few genera the sepals and petals fuse into a tube and the stamens are epipetalous. Thus the correct option is D.
Question 4
1 / -0

The type of inflorescence characterized by having dimorphic flower is

A
Catkin

B
Umbel

C
Corymb

D
Capitulum

Solution

There are two types of inflorescence, racemose and cymose. Racemose inflorescence is further divided into elongated axis, shortened axis and flattened axis. Catkin has elongated axis. It is a modification of spike inflorescence. It bears unisexual flower. Umbel and corymb have shortened axis. In corymb, the lower flowers have long stalks as compared to upper flowers. Umbel has group of flowers at the tip. Capitulum has flattened axis. In this, flower are sessile and are present on a flat surface. It is characterized by having dimorphic flower.
Thus, the correct answer is 'Capitulum.'
Question 5
1 / -0

Cymose inflorescence is ________.

A
Definite

B
Indefinite

C
Verticillate

D
Alternate

Solution

The cymose inflorescence is characterized by the presence of a flower at the apex of the flower axis. The number of the flower is definite. The cymose inflorescence is also known as definite inflorescence because the growing point of the peduncle is used up in the formation of flower. In this type of arrangement older flower is present in the middle and the younger ones at the periphery.
so, the correct answer is 'Definite'
Question 6
1 / -0

The inflorescence found in grasses and sedges is

A
Compound spike

B
Spikelet

C
Catkin

D
Spadix

Solution

The inflorescence found in grasses and sedges is Spikelet. Spikelet is small , special type spike. Flowers are produced in the axil of fertile bracts called Lemma.
So, the correct option is 'Spikelet'.
Question 7
1 / -0

Which of the following group does not represent monocot Apricot, mango, guava, apple, coconut, strawberry

A
Apricot, mango, Guava

B
Apple, strawberry, coconut

C
Coconut, apple, cashewnut

D
Coconut, strawberry, mango

Solution

Apricot, Mahgo and Guava are dicots. Coconut is a monocot plant.
So, the correct answer is 'Apricot, mango, Guava'
Question 8
1 / -0

Liliaceae members with unisexual flowers are?

A
Asparagus, Allium

B
Smilax, Gloriosa

C
Ruscus, Smilax

D
Lilium, Allium
Question 9
1 / -0

A fruit in which the pericarp is soft, pulpy mesocarp and hard endocarp enclosing the seed, is____________.

A
Tomato

B
Orange

C
Pinapple

D
Mango

Solution

A fruit in which the pericarp is soft, pulpy mesocarp and hard endocarp enclosing the seed, is Mango.
Thus, Option D is correct.
Question 10
1 / -0

Cladodes are common among?

A
Liliaceae/Asparagus and Ruscus

B
Opuntia and Casuarina

C
Cactus

D
Euphorbia

Solution

Cladodes are flattened, photosynthetic shoots with limited growth which are usually considered to be modified branches with leaves reduced to scales or modified into spines. Example are Ruscus and Asparagus.
So, correct answer is 'Liliaceae/Asparagus and Ruscus'