Ssc Biology Chapter 2 Hand Note Exclusive [best]

Living cells with unevenly thickened walls (thickened at corners with cellulose and pectin). Provide mechanical support to growing parts like petioles.

Loosely coiled thread-like structures containing DNA (Deoxyribonucleic Acid). During cell division, they condense into distinct structures called chromosomes, which carry hereditary traits. 3. Plant Tissues: Simple and Complex

: Characterized by a rigid cell wall and chloroplasts for photosynthesis.

Lack a well-defined nucleus and membrane-bound organelles. The genetic material (DNA) is naked in the cytoplasm. Example: Bacteria, Cyanobacteria. ssc biology chapter 2 hand note exclusive

Simple tissues are composed of homogeneous cells (cells of the same size, shape, and structure).

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Contains the nucleus and metabolic cytoplasm. Living cells with unevenly thickened walls (thickened at

Animal tissues are highly specialized and classified into four primary types based on their structure, location, and function. 1. Epithelial Tissue

As you study Chapter 2, be mindful of these common pitfalls:

Digestion (known as "suicide squads" or "suicide bags" for digesting worn-out cells). During cell division, they condense into distinct structures

The are further divided into:

because they contain digestive enzymes to break down worn-out materials. : The site for protein synthesis. Cell Membrane

Derived from the embryonic mesoderm, this tissue consists of elongated cells capable of contraction and relaxation to generate movement.