Ssc Biology Chapter 2 Hand Note Exclusive Repack -

: A fundamental concept stating that the cell is the basic unit of life and that all organisms are composed of one or more cells. Prokaryotic vs. Eukaryotic Cells Prokaryotes : Lack a defined nucleus; circular DNA; generally smaller. Eukaryotes : Possess a true nucleus and membrane-bound organelles. Plant Cell Wall

Your exclusive hand note should list each organelle with a one-sentence function and a simple sketch.

| Feature | Plant Cell | Animal Cell | | :--- | :--- | :--- | | | Present (made of cellulose). | Absent. | | Plastids | Present (Chloroplast, Chromoplast, Leucoplast). | Absent. | | Vacuole | Large, permanent central vacuole. | Small, temporary, and numerous. | | Centrosome | Absent (in higher plants). | Present. | | Shape | Fixed, rectangular/hexagonal shape. | Irregular shape due to lack of wall. | | Starch | Stores starch. | Stores glycogen. | ssc biology chapter 2 hand note exclusive

A: According to past 10 years of SSC papers:

Responsible for movement (Skeletal, Smooth, Cardiac). : A fundamental concept stating that the cell

Packages, modifies, and secretes proteins and lipids.

Short, branched extensions that receive incoming electrical signals. Eukaryotes : Possess a true nucleus and membrane-bound

SSC Biology Chapter 2 Hand Note Exclusive: Cells and Tissues

A typical eukaryotic cell consists of three main components: Cytoplasm (Protoplasm) Nucleus A. Cell Membrane (Plasma Membrane)

Not under conscious control. Spindle-shaped, single nucleus, no striations. Example: Walls of the alimentary canal, blood vessels.

"Why is the cell called the functional unit?" Answer: Because all functions (respiration, nutrition, excretion) occur inside the cell.