fruits Questions in English

(A) hesperidium is a specialized type of fleshy fruit that develops from a superior ovary. It is considered a modified form of a berry,characterized by a leathery rind (exocarp) and internal segments filled with juice-filled hairs (trichomes).

(C) The fruit of wheat is known as a $Caryopsis$.
In a $Caryopsis$ fruit,the pericarp (fruit wall) and the seed coat are completely fused together to form a single unit.
This type of fruit is characteristic of the family $Poaceae$ (formerly known as $Gramineae$).

(B) Caryopsis is a type of simple,dry,indehiscent fruit that develops from a monocarpellary,superior ovary.
In this fruit,the pericarp (fruit wall) is thin and completely fused with the seed coat (testa),making it impossible to separate them.
Examples include grains of wheat,maize,and rice.

(D) Fruit is defined as a fertilized ovary,which consists of a fruit wall (pericarp) developing from the ovary wall and a seed,which develops from the ovule.
Maize grain is a caryopsis fruit,in which the fruit wall is fused with the seed coat (i.e.,a one-seeded fruit).

$(D)$ Pineapple $(Ananas \text{ } sativus)$ is a multiple fruit (sorosis), which develops from a complete inflorescence, i.e., a cluster of compactly borne flowers on an axis.

(A) In citrus fruits like lemon,the edible part consists of unicellular,juice-filled hairs. These structures are outgrowths of the endocarp,which is the innermost layer of the pericarp. Therefore,the juicy hair-like structures develop from the endocarp.

(D) In several members of the family Compositae (e.g.,$Taraxacum$,$Tragopogon$),as well as in Dipsacaceae and Valerianaceae,the calyx is modified into a hairy structure known as pappus.
This structure acts like a parachute,allowing the fruit or seed to be easily carried by wind currents,thereby facilitating air dispersal.

(D) According to the evolutionary classification of fruits,aggregate fruits are considered more advanced than simple fruits. An $Etaerio$ of drupes is a type of aggregate fruit where multiple small drupelets are formed from a single flower with apocarpous ovaries. This complexity in structure compared to simple fruits like $Cypsela$,$Caryopsis$,or $Pome$ makes it more evolutionarily advanced.

(D) In mango,the fruit is a drupe.
It develops from a monocarpellary superior ovary and is one-seeded.
The outer skin is the epicarp,the fleshy edible part is the mesocarp,and the stony hard part surrounding the seed is the endocarp.

(A) Mango and coconut are examples of drupe fruits. These fruits develop from monocarpellary superior ovaries and are one-seeded. In mango,the pericarp is well-differentiated into an outer thin epicarp,a middle fleshy edible mesocarp,and an inner stony hard endocarp. In coconut,the mesocarp is fibrous.

(A) The correct matches are as follows:
$1$. Amphisarca is a type of berry with a hard rind,found in $Aegle$ (Bael).
$2$. Pepo is a fleshy fruit derived from an inferior ovary,characteristic of the Cucurbitaceae family,such as $Cucumis$ (Cucumber).
$3$. Drupe is a fleshy fruit where the endocarp is stony,found in $Juglans$ (Walnut).
$4$. Sorosis is a multiple fruit derived from a spike or spadix,found in $Ananas$ (Pineapple).
Therefore,the correct sequence is $a(i), b(ii), c(iv), d(iii)$.

(C) The correct matching for the given fruit types is as follows:
$1$. Pome is a false fruit where the thalamus becomes fleshy (e.g.,Apple).
$2$. Schizocarpic fruits split into one-seeded segments called mericarps.
$3$. Balausta is a fruit type (e.g.,Pomegranate) where the edible part is the fleshy testa,not the aril. The aril is the edible part in Litchi,which is a drupe-like nut.
$4$. Syconus is a composite fruit that develops from a hypanthodium inflorescence (e.g.,Fig).
Therefore,the incorrect matching is $C$.

(D) The family $Fabaceae$ (formerly $Leguminosae$) is characterized by the presence of a $Legume$ (or $Pod$) fruit,which develops from a monocarpellary,unilocular ovary and dehisces along both sutures.
The family $Brassicaceae$ (formerly $Cruciferae$) is characterized by the presence of a $Siliqua$ fruit,which is a long,dry,dehiscent fruit that develops from a bicarpellary,syncarpous,superior ovary with a false septum called a $replum$.
Therefore,the most common fruits are $Legume$ for $Fabaceae$ and $Siliqua$ for $Brassicaceae$.

(D) In the family $Apiaceae$ (to which $Coriandrum$ belongs),the fruit is a cremocarp.
Upon maturation,the fruit splits into two mericarps.
These mericarps remain attached to a central,slender,stalk-like structure which is a prolongation of the thalamus.
This structure is known as the $Carpophore$.

(A) The correct answer is $A$ (Capsule).
- $A$ $Capsule$ is a type of dry dehiscent fruit that develops from a multicarpellary,syncarpous,superior ovary.
- It typically exhibits axile placentation.
- $Siliqua$ is a dehiscent fruit developing from a bicarpellary,syncarpous,superior ovary with parietal placentation.
- $Achene$ is a dry indehiscent fruit.
- $Lomentum$ is a dry dehiscent fruit that breaks into segments,derived from a monocarpellary ovary.

(C) The pericarp is the fruit wall that develops from the ovary wall. In fleshy fruits like mango,guava,and orange,the pericarp is differentiated into epicarp,mesocarp,and endocarp,and it remains succulent or fleshy at maturity. In dry fruits,the pericarp becomes dry,hard,and often thin at maturity. Groundnut and mustard are examples of dry fruits where the pericarp is not fleshy.

(B) Commercial coir is obtained from the fibrous husk,which is the $Mesocarp$,of the fruits of the coconut palm,$Cocos$ $nucifera$ (family-$Arecaceae$).
The fiber is very light,elastic,waterproof,soundproof,and has exceedingly high resistance to mechanical wear and dampness,although it is less durable and has a rough surface.
It is widely used for making mats,gunny bags,marine cordage,fishing nets,etc.

(D) In a drupe fruit like mango,the fruit develops from a monocarpellary superior ovary and is one-seeded.
$1$. The Epicarp (outer layer) is thin and forms the skin of the fruit.
$2$. The Mesocarp (middle layer) is fleshy and edible.
$3$. The Endocarp (inner layer) is stony and hard,protecting the seed inside.
Therefore,the correct sequence is Epicarp - thin,Mesocarp - fleshy,and Endocarp - stony.

(C) The given figure shows the structure of a coconut,which is a drupe fruit.
In a coconut,the fruit wall (pericarp) is differentiated into three layers:
$1$. Epicarp: The outer fibrous layer.
$2$. Mesocarp: The middle fibrous layer (the husk).
$3$. Endocarp: The hard,stony inner layer that protects the seed.
In the provided diagram,$P$ points to the fibrous middle layer,which is the mesocarp.
$Q$ points to the hard inner layer,which is the endocarp.
Therefore,$P$ is the mesocarp and $Q$ is the endocarp.

(A) In the provided diagrams,which represent cross-sections of various fruits,the inner structures labeled $S$ represent the seeds,which develop from fertilized ovules.
The outer protective layer labeled $P$ represents the pericarp,which is the wall of the fruit developed from the ovary wall after fertilization.
Therefore,$S$ corresponds to the seed and $P$ corresponds to the pericarp.

(B) The pericarp is the part of the fruit formed from the ovary wall. It consists of three layers: epicarp,mesocarp,and endocarp.
In fleshy fruits,the pericarp is thick,succulent,and differentiated into these layers.
$1$. Guava: Fleshy fruit (berry).
$2$. Mustard: Dry fruit (siliqua).
$3$. Orange: Fleshy fruit (hesperidium).
$4$. Mango: Fleshy fruit (drupe).
$5$. Groundnut: Dry fruit (lomentum).
Among the given list,Guava,Orange,and Mango have fleshy pericarps.
Therefore,the total count is $3$.

(C) In mango and coconut,the fruit develops from a monocarpellary superior ovary and is one-seeded. Such fruits are known as $Drupe$.
In mango,the pericarp is well differentiated into an outer thin $Epicarp$,a middle fleshy edible $Mesocarp$,and an inner stony hard $Endocarp$.
In coconut,which is also a $Drupe$,the $Mesocarp$ is fibrous.

(A) The correct answer is $A$.
In apple,the fruit is a false fruit $(pseudocarp)$.
In false fruits,the thalamus contributes to fruit formation along with the ovary.
The fleshy,edible part of the apple is the modified thalamus.

(A) The correct answer is $A$.
$A$ simple fruit develops from a single flower with a syncarpous pistil,where the carpels are fused together.
In contrast,an aggregate fruit develops from a single flower with multiple free carpels (apocarpous),and a multiple fruit develops from an entire inflorescence.
Depending on the nature of the pericarp,a simple fruit can be either dry or succulent.

(B) The correct answer is $B$.
Fleshy fruits with a stony endocarp are known as $drupes$.
In these fruits, the endocarp is hard and stony, which protects the seed inside.
This stony endocarp is surrounded by a fleshy mesocarp and a thin exocarp.
Common examples of $drupes$ include mango $(Mangifera \text{ } indica)$ and coconut $(Cocos \text{ } nucifera)$.

(D) Fruits.
Fruits are the major contributors to human food because they are rich in essential nutrients such as carbohydrates,vitamins,and minerals. They serve as a primary source of energy and dietary fiber for humans across the globe.