Test: Plant And Animal Tissues - Class 7 MCQ

Xylem is the type of tissue responsible for the upward transport of water and minerals from the roots to the leaves. It consists mainly of dead cells that form long tubes, allowing efficient movement of water.

Phloem is the vascular tissue responsible for the transport of organic nutrients, particularly sugars produced during photosynthesis, throughout the plant, allowing for growth and energy distribution.

Ciliated epithelium is equipped with hair-like structures called cilia that help move substances, such as mucus and debris, across the surface, particularly in the respiratory tract and reproductive organs.

Adipose tissue is specialized connective tissue that stores fat. It serves as an energy reserve, insulates the body, and provides cushioning for organs.

Smooth muscle is involuntary and lacks striations. It is found in the walls of hollow organs, such as the intestines and blood vessels, facilitating functions like peristalsis and blood flow regulation.

Nervous tissue is essential for communication in the body, consisting of neurons that transmit signals and glial cells that support and protect neurons. It plays a critical role in coordinating bodily functions.

Connective tissue is distinguished by its extensive extracellular matrix, which varies in composition and provides support, binding, and protection for various tissues and organs in the body.

Cuboidal epithelium consists of cube-shaped cells and is commonly found in glandular tissues and kidney tubules, where it plays a key role in absorption and secretion.

Collenchyma cells are characterized by their elongated shape and unevenly thickened cell walls, which provide flexible support to plant structures, especially in young stems and leaf stalks.

Meristematic tissue is responsible for producing new cells that contribute to plant growth. It is found at the tips of roots and stems, enabling plants to elongate and develop new structures.

The neuron is the fundamental unit of nervous tissue responsible for transmitting nerve impulses. Neurons can process and convey information throughout the nervous system, enabling communication within the body.

Sclerenchyma cells are specialized for providing structural support to plants. These cells have thick, lignified walls and are typically found in mature parts of the plant, such as stems and leaves.

Adipose tissue serves primarily as an energy reserve by storing fat. It also provides insulation and cushioning to protect organs, highlighting its important role in energy management and overall homeostasis.

Tendons are a type of fibrous connective tissue that connect muscles to bones, allowing for movement at joints. They are rich in collagen fibers, providing strength and flexibility.

Cardiac muscle is a specialized type of striated muscle found exclusively in the heart. It is involuntary and capable of continuous contraction without fatigue, crucial for maintaining a consistent heartbeat.

Phloem is responsible for the transport of food produced in the leaves to other parts of the plant and does so in both upward and downward directions. It mainly consists of living cells.

Parenchyma cells are characterized by their large, thin walls and are living cells found throughout the plant. They play a crucial role in functions such as photosynthesis, storage, and providing temporary support.

Meristematic tissues are responsible for the active division of cells, which leads to the growth of the plant. They are found at the tips of roots and stems, contributing to both length and thickness growth by producing new cells.

Meristematic tissues are characterized by small cells with thin walls and almost no vacuoles, enabling them to divide actively. The presence of large vacuoles is typical of mature, differentiated cells rather than meristematic ones.

Epithelial tissue forms protective barriers on surfaces and inside cavities of organs. It is involved in protection, absorption, secretion, and sensation, making it crucial for maintaining homeostasis.