Locomotion and Movement MCQs for NEET — Zoology Questions with Answers

Ciliary movement involves the movement of organisms or cells using hair-like structures called cilia. Chlamydomonas, a type of green algae, uses cilia for movement. Therefore, the correct answer is 'Chlamydomonas.'

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Amoeba moves using pseudopodia, which are temporary projections of the cell. Paramecium moves using cilia, which are small hair-like structures that cover its surface. Hydra moves using tentacles, which are flexible, elongated structures.

Animals exhibit locomotion for various reasons, including finding shelter, searching for food, escaping from predators, and finding a mate for reproduction. Therefore, the main aims of locomotion in animals include all the options listed: shelter, search of food, escape from enemies, predation, and reproduction.

The types of movement in organisms generally include amoeboid movement, ciliary movement, and muscular movement. The 'joining process' is not a recognized type of movement in biological contexts.

Amoeboid movement is a type of movement exhibited by various cells such as Amoeba, leucocytes (white blood cells), and macrophages. These cells move using pseudopodia, which are temporary projections of the cell.

Ciliary movement can be observed in multiple parts of the body including the trachea, oviduct, and vasa efferentia. Cilia are hair-like structures that beat in a coordinated manner to move substances or cells.

Muscle tissue originates from the mesoderm, which is one of the three primary germ layers formed during embryonic development. The mesoderm gives rise to muscles, the circulatory system, bones, and other structures. For NEET students, it's important to remember that the mesoderm is responsible for forming most of the body's connective tissues, including muscles.

In an adult human, muscle tissue makes up approximately 40 - 50% of the total body weight. This high percentage is due to the extensive presence of skeletal muscles, which are essential for movement and stability. NEET students should note that this range can vary slightly based on factors such as age, sex, and overall physical fitness.