Test: Animal Tissue - SSC CGL MCQ

The primary function of compound epithelium tissue, is to protect against chemical and mechanical stress. This type of tissue covers dry surfaces like the skin and moist surfaces like the buccal cavity, providing a barrier against various external stresses and potential damage.

Columnar Epithelium is composed of tall, slender cells with nuclei located at the base. This type of epithelium often has microvilli on its free surface and is found lining organs like the stomach and intestines. The presence of microvilli increases the surface area for absorption and secretion processes in these organs.

Simple epithelium is characterized by being composed of a single layer of cube-like cells. This type of epithelium is typically found in structures like the ducts of glands and the tubular part of the kidney nephron, aiding in absorption and secretion processes within these organs.

Connective tissues primarily function to provide elasticity and flexibility in the body. They are responsible for linking and supporting other tissues, such as areolar and adipose tissues in loose connective tissue and collagen fibers in dense connective tissue. Elasticity and flexibility are crucial for various bodily movements and structural support, ensuring that organs and systems can function effectively.

Dense Connective Tissue is the type of connective tissue that contains fibers and fibroblasts tightly packed in either regular or irregular patterns. In dense regular connective tissues, collagen fibers are arranged in rows between parallel bundles, as commonly seen in tendons and ligaments. This tight packing provides strength and support to the tissues, contributing to their structural integrity.

The primary component of blood as a specialized connective tissue is plasma. Plasma is a fluid matrix that makes up the majority of blood volume and acts as a medium for transporting various substances, including nutrients, waste products, hormones, and gases, throughout the body. It plays a vital role in maintaining homeostasis and supporting bodily functions.

The fundamental unit of the neural system is the neuron. Neurons are specialized cells that transmit information through electrical and chemical signals in the nervous system. They play a crucial role in processing and transmitting information within the brain and between the brain and the rest of the body.

Earthworms respire through their moist skin. Their skin needs to stay moist to facilitate the exchange of gases (oxygen and carbon dioxide) with the surrounding environment. This process of respiration through the skin is known as cutaneous respiration and is essential for their survival.

The clitellum is a prominent band located on segments 14-16 of an earthworm's body. It is involved in the reproduction of earthworms, secreting a mucous cocoon that contains eggs and sperm during the process of reproduction.

The yellow-colored filamentous Malpighian tubules in a cockroach are located at the junction of the midgut and hindgut. These tubules primarily aid in excretion by helping in the removal of waste materials from the cockroach's body.

When in water, frogs primarily respire through their skin. This process, known as cutaneous respiration, allows them to exchange gases directly through their skin with the surrounding water, facilitating respiration while underwater.

Male frogs can be distinguished from females based on the presence of vocal sacs. These sacs are used by male frogs to amplify their calls during mating rituals, attracting female frogs for reproduction.

Glandular epithelium is distinguished by being specialized for secretion. This type of epithelium, whether unicellular or multicellular, is specifically designed to produce and release various substances such as enzymes, hormones, or mucus. In multicellular glands, there are typically different cell types working together to fulfill specific secretory functions.

Specialized Connective Tissues encompass cartilage, bones, and blood in the body. These tissues have unique structures and functions tailored to specific roles within the body. For instance, bones provide structural support and protection, cartilage maintains flexibility and resilience in joints, and blood serves as a medium for transporting essential substances throughout the body, highlighting the diverse functions of specialized connective tissues.

The primary excretory organ in earthworms is called nephridia. These are coiled segmental tubules responsible for excreting metabolic wastes from the body. Nephridia play a crucial role in maintaining the internal environment of the earthworm by removing nitrogenous wastes and excess water.