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Test: Morphology of Plants - SSC CGL MCQ


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15 Questions MCQ Test General Awareness for SSC CGL - Test: Morphology of Plants

Test: Morphology of Plants for SSC CGL 2024 is part of General Awareness for SSC CGL preparation. The Test: Morphology of Plants questions and answers have been prepared according to the SSC CGL exam syllabus.The Test: Morphology of Plants MCQs are made for SSC CGL 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Morphology of Plants below.
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Test: Morphology of Plants - Question 1

What is the primary function of morphology in the field of biology?

Detailed Solution for Test: Morphology of Plants - Question 1

In biology, morphology primarily focuses on studying the form and structure of organisms. This involves examining the external features and physical characteristics of living organisms to understand how their anatomy influences their functions and adaptations.

Test: Morphology of Plants - Question 2

How do roots develop in plants with a tap root system?

Detailed Solution for Test: Morphology of Plants - Question 2

Plants with a tap root system develop secondary and tertiary roots from the primary root, which originates from the radicle of the embryo. This primary root gives rise to additional roots, contributing to the tap root system's structure and function, aiding in anchorage and nutrient absorption.

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Test: Morphology of Plants - Question 3

What distinguishes monocot plants in terms of root systems?

Detailed Solution for Test: Morphology of Plants - Question 3

Monocot plants are characterized by having roots that arise from the lower stem, forming a fibrous root system. Unlike dicot plants with a tap root system, monocots exhibit a network of roots that spread out horizontally from the base of the stem, providing stability and efficient absorption of water and nutrients.

Test: Morphology of Plants - Question 4

Which plants develop roots from parts other than the radicle?

Detailed Solution for Test: Morphology of Plants - Question 4

Plants like Monstera, banyan trees, and certain grasses develop roots from parts other than the radicle, known as adventitious roots. These roots provide additional support and anchorage to the plant, enabling them to thrive in diverse environmental conditions.

Test: Morphology of Plants - Question 5

What is the significance of adventitious roots in plant development?

Detailed Solution for Test: Morphology of Plants - Question 5

Adventitious roots play a crucial role in providing additional support and anchorage to plants, especially in species where roots develop from parts other than the radicle. These roots help plants secure themselves in the soil, ensuring stability and enabling efficient nutrient uptake for optimal growth and survival.

Test: Morphology of Plants - Question 6

What type of root modification involves the production of suckers from adventitious buds that grow into independent aerial shoots aiding in plant propagation?

Detailed Solution for Test: Morphology of Plants - Question 6

Sub-aerial modifications refer to changes above ground that are not fully developed. Suckers in roses, runners in gram, stolons in mint, and offsets in water hyacinth are examples of such modifications. These adaptations help plants reproduce and spread by producing new plants at various distances from the parent plant.

Test: Morphology of Plants - Question 7

What is the primary function of haustoria in certain flowering plants that act as parasites on other plants?

Detailed Solution for Test: Morphology of Plants - Question 7

Haustoria in parasitic plants establish a connection with the host's vascular system, enabling them to extract nutrients. This adaptation allows parasitic plants to obtain essential nutrients from the host plant, aiding their survival and growth.

Test: Morphology of Plants - Question 8

Which part of the plant originates from the plumule of the embryo and constitutes the ascending portion of the plant?

Detailed Solution for Test: Morphology of Plants - Question 8

The stem is the part of the plant that develops from the plumule of the embryo. It serves as the main axis of the plant, supporting leaves, flowers, and fruits. The stem also aids in the transport of water, minerals, and nutrients throughout the plant.

Test: Morphology of Plants - Question 9

What are the flat structures attached to the stem at nodes, originating from the shoot apical meristem?

Detailed Solution for Test: Morphology of Plants - Question 9

Leaves are flat structures attached to the stem at nodes. They play a crucial role in photosynthesis, aiding in the production of food for the plant. Leaves originate from the shoot apical meristem and are arranged in an acropetal order along the stem.

Test: Morphology of Plants - Question 10

Which type of leaf venation exhibits a branched pattern?

Detailed Solution for Test: Morphology of Plants - Question 10

Reticulate venation displays a branched pattern of veins and veinlets in a leaf. This type of venation is common among dicot plants and facilitates efficient nutrient and water transport throughout the leaf.

Test: Morphology of Plants - Question 11

What is a flower considered to be, based on its structure and origin?

Detailed Solution for Test: Morphology of Plants - Question 11

A flower is essentially a modified stem. It arises from a floral axis and plays a crucial role in reproduction by producing seeds through the process of pollination and fertilization. This modification allows the plant to attract pollinators and ensure the continuation of its species.

Test: Morphology of Plants - Question 12

How can inflorescence be categorized based on the floral axis growth pattern?

Detailed Solution for Test: Morphology of Plants - Question 12

Inflorescence can be categorized as racemose (where the main axis continues to grow) or cymose (where the main axis terminates in a flower). This classification is based on the growth pattern of the floral axis and influences the overall structure and arrangement of flowers on a plant.

Test: Morphology of Plants - Question 13

What part of a flower develops into a fruit after fertilization?

Detailed Solution for Test: Morphology of Plants - Question 13

A fruit develops from the ovary of a flower after fertilization. The ovary undergoes changes and ripens to form the fruit, which protects the seeds and aids in their dispersal. The development of the fruit is a crucial stage in the plant's reproductive cycle.

Test: Morphology of Plants - Question 14

What is the primary component of a fruit, responsible for protecting the seeds?

Detailed Solution for Test: Morphology of Plants - Question 14

The pericarp is the primary component of a fruit and is formed from the ovary wall. It can be dry or fleshy and serves to protect the seeds within the fruit. The pericarp plays a vital role in seed dispersal and contributes to the reproductive success of the plant.

Test: Morphology of Plants - Question 15

What distinguishes dicotyledonous seeds from monocotyledonous seeds in terms of cotyledon number?

Detailed Solution for Test: Morphology of Plants - Question 15

Dicotyledonous seeds have two cotyledons in their embryo, while monocotyledonous seeds have only one cotyledon. Cotyledons are essential for providing nutrients to the developing seedling after germination and play a crucial role in the early growth stages of the plant.

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