Morphology of Flowering Plants Test 50

Result

Morphology of Flowering Plants Test 50

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Bisexual, sessile and bracteate flowers develop acropetally in

A
Raceme

B
Panicle

C
Spike

D
Corymb

Solution

There are two types of inflorescence seen in plants, that is determinate and inderminate inflorescence. In determinate florescence, the youngest flowers are at the bottom of an axis. In inderminate inflorescence, the youngest flowers are at the top of an axis. These include raceme, panicle, spike, corymb, umbel, spadix and head. In raceme, flowers develop between the stem and branch of each leaf along an axis. In panicle, the branched receme has more than one flower. In spike, the flower is sessile and develops from stem. Bisexual, sessile and bracteate flowers develop acropetally in spike. In corymb, pedicels of the upper flowers are shorter than that of the lower flowers
Thus, the correct answer is 'Spike.'
Question 2
1 / -0

Euphorbia is characterized by?

A
Laticifers

B
Extra floral nectaries

C
Special inflorescence

D
All the above
Solution
- The Euphorbiaceae are mostly monoecious herbs, shrubs, and trees, sometimes succulent and cactus-like, comprising one of the largest families of plants with about 300 genera and 7,500 species that are further characterized by the frequent occurrence of milky sap. The leaves are mostly alternate but may be opposite or whorled and they are simple, or compound, or sometimes highly reduced. Stipules are generally present but may be reduced to hairs, glands or spines. The flowers are unisexual and usually actinomorphic. They may be highly reduced by suppression of parts, in the extreme form consisting of a naked stamen as a male flower and a naked pistil as a female flower.
- A specialized type of miniature inflorescence called a cyathium occurs in about 1,500 species comprising the genera Euphorbia and Chamaesyce. The cyathium consists of a single naked pistillate flower surrounded by cymes of naked staminate flowers, each consisting of a single stamen.
- These flowers are all enclosed in a cup-like involucre that typically is provided with peripheral nectaries and petaloid appendages such that the whole aggregation closely resembles a single flower.
So, the correct answer is 'All the above'.
Question 3
1 / -0

A diagnostic feature for identification of pea (Fabaceae) flower is

A
Tetradynamous stamens

B
Inferior ovary

C
Cruciform corolla

D
Vexillary aestivation in petals

Solution

Fabaceae is a family that was earlier called Papilionoideae and a subfamily Leguminosae. In this type of flower five petals called polypetalous, aestivation descending imbricate or vexillary. In vexillary aestivation, there are five petals. The largest petal (called standard) overlaps the two lateral petals (called wings) which further overlap the two smallest anterior petals (called keel).
So, the correct answer is 'Vexillary aestivation in petals'.
Question 4
1 / -0

Syconus fruits develop from

A
Spike inflorescence

B
Spadix inflorescence

C
Catkin inflorescence

D
Hypanthodium inflorescence

Solution

Hypanthodium is the type of inflorescence in which the receptacle forms a hollow cavity with an apical opening guarded by scales. Here the flowers are borne on the inner wall of the cavity. It is also present in syconus.
So the correct answer is 'Hypanthodium inflorescence'.
Question 5
1 / -0

Which is the sequence of four whorls of flower from outside to inside?

A
Calyx $$\rightarrow$$ Corolla $$\rightarrow$$ Androceium $$\rightarrow$$ Gynoceium

B
Gynoceium $$\rightarrow$$ Androceium $$\rightarrow$$ Corolla $$\rightarrow$$ Calyx

C
Calyx $$\rightarrow$$ Androceium $$\rightarrow$$ Corolla $$\rightarrow$$ Gynoceium

D
Gynoceium $$\rightarrow$$ Corolla $$\rightarrow$$ Androceium $$\rightarrow$$ Calyx

Solution

Each flower has normally four floral whorls outside to inside as Calyx, Corolla, Androecium and Gynoecium.
So, the correct answer is 'Calyx $$\rightarrow$$ Corolla $$\rightarrow$$ Androceium $$\rightarrow$$ Gynoceium'.
Question 6
1 / -0

Read the following four statements (A - D):
(A) Zygomorphic flowers are found in Fabaceae family.
(B) Monoadelphous stamens are found in Fabaceae family.
(C) Papilionaceous corolla is found in Fabaceae family.
(D) Inferior ovary is found in Fabaceae family.
How many of the above statements are wrong?

A
Four

B
One

C
Two

D
Three
Solution
In Fabaceae, the stamens are united into two bundles. Hence they are diadelphous. Hence statement (B) is wrong because diadelphous stamens are found in the Fabaceae family.
In Fabaceae, Hypogynous flowers are seen i.e the gynoecium occupies the highest position while the other parts are situated below it. The ovary in such flowers is said to be superior. Hence statement (D) is wrong because Superior ovary is found in the Fabaceae family.
Hence from the given 4 statements, two are wrong statements i.e statement (B) and (D).
So, the correct answer is 'Two'.
Question 7
1 / -0

Identify the given below diagram and choose correct option.

A
Monochasial cyme

B
Dichasial cyme

C
Cyathium inflorescence

D
Polychasial cyme

Solution

This diagram represents dichasial cyme which is a type of cymose inflorescence. In this type of inflorescence, the peduncle bears a terminal flower and stops growing. At the same time, the peduncle starts expanding horizontally.

So the correct answer is 'Dichasial cyme'.
Question 8
1 / -0

Inferior achenial one chambered and one seeded fruit derived from bicarpellary pistil with pericarp and seed-coat free. Which of the following fruit belongs to this category of fruits?

A
Wheat

B
Mustard

C
Pea

D
Sunflower

Solution

One chambered and one-seeded fruit developed from an inferior bicarpellary ovary fused with the calyx tube example sunflower.
So, the correct option is 'Sunflower'.
Question 9
1 / -0

Nodulose root found in?

A
Curcuma longa

B
Curcuma amanda (mango ginger)

C
Ipomoea

D
None of the above

Solution

Curcuma amanda has swollen root tips also called as nodulose roots
So, the correct answer is 'Curcuma amanda (mango ginger)'
Question 10
1 / -0

Which of the following is capable of forming either a branch or a flower?

A
Intercalary meristem

B
Axillary bud

C
Vegetative bud

D
None of these

Solution

The axillary bud (or lateral bud) is an embryonic shoot located in the axil of a leaf. Each bud has the potential to form shoots and may be specialized in producing either vegetative shoots (stems and branches) or reproductive shoots (flowers).

So, the correct answer is 'Axillary bud'.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Morphology of Flowering Plants Test 50

Result

Morphology of Flowering Plants Test 50

Score

-

Rank

-

SHARING IS CARING

Question 1

Raceme

Panicle

Spike

Corymb

Solution

Question 2

Laticifers

Extra floral nectaries

Special inflorescence

All the above

Solution

Question 3

Tetradynamous stamens

Inferior ovary

Cruciform corolla

Vexillary aestivation in petals

Solution

Question 4

Spike inflorescence

Spadix inflorescence

Catkin inflorescence

Hypanthodium inflorescence

Solution

Question 5

Calyx $$\rightarrow$$ Corolla $$\rightarrow$$ Androceium $$\rightarrow$$ Gynoceium

Gynoceium $$\rightarrow$$ Androceium $$\rightarrow$$ Corolla $$\rightarrow$$ Calyx

Calyx $$\rightarrow$$ Androceium $$\rightarrow$$ Corolla $$\rightarrow$$ Gynoceium

Gynoceium $$\rightarrow$$ Corolla $$\rightarrow$$ Androceium $$\rightarrow$$ Calyx

Solution

Question 6

Four

One

Two

Three

Solution

Question 7

Monochasial cyme

Dichasial cyme

Cyathium inflorescence

Polychasial cyme

Solution

Question 8

Wheat

Mustard

Pea

Sunflower

Solution

Question 9

Curcuma longa

Curcuma amanda (mango ginger)

Ipomoea

None of the above

Solution

Question 10

Intercalary meristem

Axillary bud

Vegetative bud

None of these

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.