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Test: Roots, Stems, Leaves & Parts of Flower - NEET MCQ


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15 Questions MCQ Test Topic-wise MCQ Tests for NEET - Test: Roots, Stems, Leaves & Parts of Flower

Test: Roots, Stems, Leaves & Parts of Flower for NEET 2024 is part of Topic-wise MCQ Tests for NEET preparation. The Test: Roots, Stems, Leaves & Parts of Flower questions and answers have been prepared according to the NEET exam syllabus.The Test: Roots, Stems, Leaves & Parts of Flower MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Roots, Stems, Leaves & Parts of Flower below.
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Test: Roots, Stems, Leaves & Parts of Flower - Question 1

Roots originate from the base of the stem and constitute the fibrous root system in which of the following plants?

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 1

In wheat plant, the roots originate from the base of the stem and constitute the fibrous root system.

Topic in NCERT: THE ROOT

Line in NCERT: "These roots originate from the base of the stem and constitute the fibrous root system, as seen in the wheat plant."

Test: Roots, Stems, Leaves & Parts of Flower - Question 2

Actinomorphic nature of flower is represented by which of the following symbols?

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 2

An actinomorphic flower is a type of flower that possesses radial symmetry. An actinomorphic flower can be divided into three or more identical parts, each of which are identical to each other when based on the rotating point of the centre of the flower.

Topic in NCERT: THE FLOWER

Line in NCERT: "In symmetry, the flower may be actinomorphic (radial symmetry) or zygomorphic (bilateral symmetry)."

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Test: Roots, Stems, Leaves & Parts of Flower - Question 3

Which of the following conditions is correct with respect to family Solanaceae?

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 3

In Solanaceae, flowers have 5 petals with valvate aestivation and 5 stamens. The filament of stamens are connected with the petals. It is known as an epipetalous condition.

Test: Roots, Stems, Leaves & Parts of Flower - Question 4

Main function of leaf is:

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 4

Plant make their own food in the presence of light as well as the exchange of gases also takes place.

Topic in NCERT: THE LEAF

Line in NCERT: "The leaf is a lateral, generally flattened structure borne on the stem... They are the most important vegetative organs for photosynthesis."

Test: Roots, Stems, Leaves & Parts of Flower - Question 5

Root hairs develop from the region of

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 5

In roots, the root hairs arise from zone of maturation. This zone is a differentiated zone. The function of root hairs is to collect water and mineral nutrients present in the soil and take this solution up through the roots to the rest of the plant. As root hair cells do not carry out photosynthesis, they do not contain chloroplasts.

Topic in NCERT: Region of maturation

Line in NCERT: "From this region some of the epidermal cells form very fine and delicate, thread-like structures called root hairs."

Test: Roots, Stems, Leaves & Parts of Flower - Question 6

Arrangement of sepals & petals with respect of other is:

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 6

In a flower, the arrangement of sepals and petals with respect to each other is called aestivation.

Topic in NCERT: Aestivation

Line in NCERT: "Aestivation: The mode of arrangement of sepals or petals in floral bud with respect to the other members of the same whorl is known as aestivation."

Test: Roots, Stems, Leaves & Parts of Flower - Question 7

Consider the following statement and answer the question that follows.

Various groups of floral parts develop one after another from the receptacle.

Which of the following parts of a plant are the first to form?

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 7

This is the correct option. Sepals are the first to form from the receptacle. They are usually green in colour and leaf-like in structure.

Topic in NCERT: Calyx

Line in NCERT: "The calyx is the outermost whorl of the flower and the members are called sepals."

Test: Roots, Stems, Leaves & Parts of Flower - Question 8

The technical term used for the androecium in the flower of pea is

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 8

The stamens in a flower may either remain free (polyandrous) or may be united in varying degrees. Stamens may be united into 1 bunch or 1 bundle (monoadelphous) as in china rose or 2 bundles (diadelphous) as in pea or into more than 2 bundles (polyadelphous) as in citrus.

Topic in NCERT: Androecium

Line in NCERT: "When stamens are attached to the petals, they are epipetalous as in brinjal, or epiphyllous when attached to the perianth as in the flowers of lily. The stamens in a flower may either remain free (polyandrous) or may be united in varying degrees. The stamens may be united into one bunch or one bundle (monoadelphous) as in china rose, or two bundles (diadelphous) as in pea, or into more than two bundles (polyadelphous) as in citrus."

Test: Roots, Stems, Leaves & Parts of Flower - Question 9

Stamens attached to petals are:

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 9

Stamens attached to petals are epipetalous. The stamens in a flower are collectively called the androecium.Androecium | Notes, Videos, QA and Tests | Grade 11>Biology>Angiosperm |  Kullabs

Topic in NCERT: Androecium

Line in NCERT: "When stamens are attached to the petals, they are epipetalous as in brinjal, or epiphyllous when attached to the perianth as in the flowers of lily."

Test: Roots, Stems, Leaves & Parts of Flower - Question 10

The floral organs arise from:

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 10

The thalamus or the receptacle is the condensed structure on the pedicle from which the floral organs arise. The thalamus typically has the nodes and internodes but the internodes are highly condensed or reduced. 

(A) Mother axis is the branch that bears the inflorescence or the flower.

(B) Thalamus (also called torus) is the axis of the floral shoot which is the direct prolongation of the pedicel and bears four sets of floral members.

(C) Root is the vegetative structure that arises from the radicle.

(D) Pedicel is the stalk that has thalamus at the end. It bears the flowers. It is attached to the mother axis.

Hence, option B is correct.

Topic in NCERT: THE FLOWER

Line in NCERT: "The flower is a modified shoot wherein the shoot apical meristem changes to floral meristem."

Test: Roots, Stems, Leaves & Parts of Flower - Question 11

Androecium is the whorl of:

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 11

The androecium is the third whorl of a flower whose individual unit is called the stamen. It is the male reproductive organ whorl.

(A) Anthers are the parts of the stamen in which pollen grains are formed.
(B) Stamens are the male reproductive structures, collectively called the androecium.
(C) Filaments are the parts of stamens that connect the anthers to the thalamus.
(D) Tepals are the units of the whorl called the perianth.

Hence the correct answer is 'Stamens'

Topic in NCERT: Androecium

Line in NCERT: "Androecium is composed of stamens."

Test: Roots, Stems, Leaves & Parts of Flower - Question 12

If the filaments are fused in a single group the condition is:

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 12

► The condition of stamens in which the stamens are united in a single bundle or group is called monadelphous. It is seen in Hibiscus.

Polyadelphous is the condition in which stamens are united to form more than two bundles. It is seen in Ricinus.

Topic in NCERT: Androecium

Line in NCERT: "The stamens may be united into one bunch or one bundle (monoadelphous) as in china rose, or two bundles (diadelphous) as in pea, or into more than two bundles (polyadelphous) as in citrus."

Test: Roots, Stems, Leaves & Parts of Flower - Question 13

Syncarpous gynoecium has two or more:

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 13

Syncarpous gynoecium has two or more fused carpels. Flowers that bear a gynoecium but no androecium are called carpellate.
If a gynoecium has multiple carpels fused into a single structure, it is syncarpous.

Topic in NCERT: Gynoecium

Line in NCERT: "They are termed syncarpous when carpels are fused, as in mustard and tomato."

Test: Roots, Stems, Leaves & Parts of Flower - Question 14

A typical flower with superior ovary and other floral parts inferior is:

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 14

A typical flower that has an ovary placed superior with respect to the other floral organs is called hypogynous. The other floral organs are attached below the ovary to the receptacle.
Example: China rose, mustard, Datura.

Topic in NCERT: POSITION OF FLORAL PARTS ON THALAMUS

Line in NCERT: "Based on the position of calyx, corolla and androecium in respect of the ovary on thalamus, the flowers are described as hypogynous, perigynous and epigynous. In the hypogynous flower the gynoecium occupies the highest position while the other parts are situated below it. The ovary in such flowers is said to be superior, e.g., mustard, china rose and brinjal."

Test: Roots, Stems, Leaves & Parts of Flower - Question 15

The tissue which attaches the ovules inside the ovary is:

Detailed Solution for Test: Roots, Stems, Leaves & Parts of Flower - Question 15

The part of the ovary where the funiculus attaches is referred to as the placenta.

In flowering plants, placentation occurs where the ovules are attached inside the ovary. 

Topic in NCERT: Gynoecium

Line in NCERT: "Each ovary bears one or more ovules attached to a flattened, cushion-like placenta."

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