BIOL 2652 Lecture 3: Chapter 3
Document Summary
All fungi, plants, and animals: generalized cell. Transmembrane proteins that play a role in cellular communication. Each chromosome contains thousands of genes: transport process. Movement across membrane without energy input they move with the concentration gradient. Diffusion: spread of particles from high to low concentration, affected by the amount of substance, steepness of concentration gradient, temperature, surface area, and. Uses energy (from atp) to move a substance against its gradient. Sodium-potassium pump is found in all cells. Phagocytes: transport large things into your cell, encapsulates things into the cell and dissolves, organelles. Transcription - copying copy of rna from dna. Translation - make protein from rna copy. Dna: double helix, uses histom to form strands of chromatin, chromatin forms chromosomes, cell division. Body cell duplicates contents and divides into two. Somatic cells contain two sets of chromosomes and are called diploid cells. Created by meiosis with number of chromosomes.
