Intro Flashcards
(20 cards)
Life depends on
Chemical reactions
What are diseases
Abnormalities in bio molecules, chemical reactions, or biochemical pathways
Homeostasis
Self-regulating process of maintaining internal stability while adjusting
How is the stable internal environment achieved
Physiological reflexes
Physiological reflexes
Cell-cell communication and feedback loops
Prokaryotes
No nucleus to organelles, smaller simpler cells, unicellar
Eukaryotes
Biological membranes, has organelles fo uni and multicellular
Cellular compartmentalization
Functional separation within the cell
Components of biological membranes
Lipids, proteins, carbohydrates, water, divalent cations
What is found in a eukaryote cell
- Plasma membrane
- Nuclear membrane, inner and outer
- ER and Golgi apparatus membrane
- Mitochondrial membrane, inner and outer
- Peroxisomes and lysosomes
Function of Cell nucleus
Genetic information, transcription, nuclear receptors
Function of Endoplasmic Reticulum
Synthesis of proteins, lipids, stores Ca++, proteins post-translation modifications
Function of Golgi apparatus - 4
Protein processing, post-translation modification, polysaccharide synthesis, packing of proteins for transport
Function of Mitochondria
Oxidation of carbohydrates and lipids
Function of Lysosomes
Digestion of macromolecules
Function of Peroxisomes
Oxidation of organic molecules
Function of Cellular energy metabolism
Transfer and utilization
Cellular metabolism players
Glycolysis, fatty acid beta oxidation, the citric acid cycle (kreb), electron transport chain, metabolic intermediates such as NADH & FADH2
Energy-rich molecules
Glucose and lipids
Released energy purposes
Cell transport and movement, enzyme activity, muscle contraction
