Well-defined nucleus with membrane-bound organelles (e.g., Plants, Animals). 2. Key Organelles & Functions Mitochondria:
Chloroplasts: Green plastids containing chlorophyll, responsible for trapping sunlight to synthesize carbohydrate food.
2. Cell Wall and Cell Membrane (কোষপ্রাচীর ও কোষঝিল্লি) A. Cell Wall (কোষপ্রাচীর) Plant cells. Composition: Cellulose, hemicellulose, pectin, and lignin.
Elongated dead cells with tapering ends and lignified walls. ssc biology chapter 2 hand note exclusive
These cells possess a highly organized, membrane-bound nucleus housing the genetic material. They contain specialized membrane-bound organelles. Examples include plant and animal cells. 2. Functional Classification: Somatic vs. Germ Cells
This tissue covers the body surface, lines internal organs, and forms glands. Epithelial cells are classified by their shape (squamous, cuboidal, columnar) and arrangement (simple, stratified).
Contains the nucleus and metabolic cytoplasm. Well-defined nucleus with membrane-bound organelles (e
A tissue is a group of cells sharing a common origin, structure, and function. Plant tissues are broadly divided into Meristematic and Permanent tissues.
কোনটিকে কোষের পাওয়ার হাউস বলা হয়? (Which one is called the powerhouse of the cell?)
Tell me your to unlock the next exclusive note section! Share public link Composition: Cellulose, hemicellulose, pectin, and lignin
: Found throughout the cytoplasm, they digest and break down old organelles.
The universal organelle responsible for protein synthesis.
For , an "exclusive" hand note should prioritize the structural differences between plant and animal components and the specialized functions of various tissues. 1. Cell Structure & Organelles