This document discusses the key structures and traits of cells. It describes two main types of cells - prokaryotic cells which lack membrane-bound structures and eukaryotic cells which have structures like the nucleus enclosed in membranes. The document outlines several organelles common to both plant and animal cells, including the cell membrane, cytoplasm, cytoskeleton, nucleus, and nuclear membrane. It provides examples of the different types of cells and explains the basic functions of the main cell structures.

1. “Cell Structure”
By
Santosh Kumar Kar

2. COMMON CELL TRAITS
 A cell is the smallest unit that is capable of
performing life functions.

3. COMPARING CELLS
 The size & shape of a
cell relates to its
function. (job it does)

4. Prokaryotic Cells
(proh KAYR ee yah tihk)
 cells without membrane-
bound structures
 EX: bacteria
pond scum

5. Eukaryotic Cells
(yew KAYR ee yah tihk)
 cells with membrane-
bound structures
 EX: animals, plants,
fungi and protists

6.  protects the cell
 gives shape
 is made of cellulose
 A cell wall is found in plants, algae, fungi, & most
bacteria.
CELL WALL

7. CELL MEMBRANE
 Outer covering, protective layer
around ALL cells
 For cells with cell walls,the cell
membrane is inside the cell wall
 Allows food, oxygen, & water
into the cell & waste products
out of the cell.

8. CYTOPLASM
 gelatin-like inside cell membrane
 constantly flows
 aka protoplasm

9. CYTOSKELETON
 scaffolding-like
structure in cytoplasm
 helps the cell maintain
or change its shape
 made of protein

10. NUCLEUS
 Directs all cell activities
 Contains instructions
for everything the cell
does
 These instructions are
found on a hereditary
material called DNA
 Usually the largest
organelle

11. NUCLEAR MEMBRANE
 separates nucleus from
cytoplasm
 controls movement of
materials in & out of
nucleus

12. NUCLEOLUS
 Aka “little nucleus”
 Found in the nucleus

13. CHROMATIN
 contains genetic code that controls cell
 made of DNA & proteins

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