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Cell Structure and Function. Unit 2A. Structure: Tough carb. covering (cellulose). Plant cells Only!!. Function: Protects plant cells and gives them shape. Cell Wall. Structure: Phospholipid bilayer with proteins. Function: Controls what enters and leaves cell. Cell Membrane .
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Cell Structure and Function Unit 2A
Structure: Tough carb. covering (cellulose). Plant cells Only!! Function: Protects plant cells and gives them shape. Cell Wall
Structure: Phospholipid bilayer with proteins Function: Controls what enters andleaves cell Cell Membrane
Structure: Two (2) Phospholipid bi-layers with pores Function: Controls what enters and leaves nucleus Nuclear Envelope
Structure: The jelly-like substance fills the cell. Function: Contains stuff needed for reactions and medium for organelles Cytoplasm
Structure: Network of microtubules and microfilaments Function: Provides internal cell support and helps change cell shape. Cytoskeleton
Structure: Thin, short filaments Function: Used for cell movement Cilia
Structure: Long whip-like structure. Function: Used for cell movement. Flagella
Structure: Bundles of microtubules and microfilaments Function: Help separate chromosomes in cell division. Centrioles
Structure: DNA strands that form an “X” Function: Contains heredity information and instructions. Chromosomes
Structure: Large, dark, porous organelle. “Brain of Cell” Function: Control center of the cell. Regulates cell activity. Contains DNA Nucleus
Structure: Small, round dense structure inside the nucleus. Function: Produces ribosomes. Nucleolus
Structure: Vesicles filled with enzymes. “Recycle Bin” Function: Digest and breakdown materials in the cell. Lysosomes
Structure: Very small dot-like structure made of R-RNA Function: Makes proteins. Ribosomes
Structure: Network of membranes throughout the cell. “Cell Highway” Function: Transports materials throughout the cell. Rough ER: studded with ribosomes; it makes proteins Smooth ER: no ribosomes; it makes lipids Endoplasmic Reticulum (ER)
Structure: Flattened membrane-bound sacks. “UPS Center” Function: Modify, package and ships proteins. Golgi Apparatus
Structure: Cigar-shaped organelle filled with folded inner membranes. Function: Powerhouse of the cell, energy changer (food to ATP). Mitochondria
Structure: Round, green organelles filled with stacks of green disks. Function: Energy changer in photosynthesis (solar energy to chemical energy – sugar). Chloroplasts
Structure: Vesicle. Animals – small Plant - large “Tupperware” Function: Storage compartment for salt, water, food and waste. Vacuole