Test #1 - Chapter 3 Flashcards
Small simple cells
No organelles
Unicellular
Prokaryotic Cells
Larger, complex cells
Membrane enclosed organelles
Unicellular or multicellular
Eukaryotic Cells
Membrane enclosed structures that perform specific functions.
Organelles
All cells are surrounded by.
Made from two layers of phospholipids and integrated proteins.
Plasma Membrane
Requires no energy.
Substances move along a concentration from high to low.
Passive Transport
Requires energy.
Substances move against a concentration gradient from low to high.
Active Transport
The movement of molecules from an area of higher concentration to an area of lower concentration.
Diffusion
The diffusion of water.
Osmosis
Large molecules can move through embedded transport proteins via this.
Facilitated Difussion
Export from the cell.
Tears
Exocytosis
The import into the cell.
Endocytosis
DNA molecules are wrapped around proteins to form fibers called.
Chromatin
Very long chromatin fiber that twists and folds to form this.
Chromosome
In the nucleus that results in production of RNA from DNA.
Transcription
The ribosomes results in the production of proteins.
Translation
Where proteins are made.
Ribosomes
Finishes, sorts, and ships cell products.
Golgi apparatus
Small bubbles made of membrane where the Golgi apparatus finishes cell products.
Vesicles
Can dissolve large food molecules, old cellular components, or invasive organisms such as bacteria.
Lysosomes
The energy of sunlight is used to create molecules of sugar.
Photosynthesis
Uses oxygen to harvest energy from molecules of sugar.
Cellular Respiration
Intracellular says that store food, nutrients, or pigments.
Vacuoles
Propel the cell through their whip like motion.
Flagella
Cilia
Move in a coordinated back and forth motion.
