BIOL 1000- Final Exam Guide - Comprehensive Notes for the exam ( 96 pages long!)
Document Summary
Chapter 5: cell membranes and signalling: concentration gradients are key source of energy. Selective permeability: a lot of proteins associated with signalling is associated to membranes. Asymmetry of membranes membrane essential (passive diffusion) cell/membrane it is. Phospholipid: 2 fatty acid tail and glycerol head cell, phospholipids being taken out and some being shoved (added) in, really diverse. Fatty acid side (double cis bond giving it the kink) Factors influencing me: acts as a buffer at both high and low temps, high temp reduces movement and slow it down by walking putting things, regulating the membrane fluidity = cholesterol closer together. Lecture #8 sept 26: protects the dna controlling what goes in and out of a cell see what goes in and out control. In: double membrane (2 phospholipids bilayers, have nuclear pores very complex structure have components in them to help, proteins, transcription factors/enzymes, nutrients. Eukaryotic dna and non-histones proteins: involved in gene transcription.
