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Biology 2

Test 2

Prophase visible chromosomes nuclear membrane dissolvse, spindle fibers appear
metaphase chromosomes align along the equator of the cell
anaphase chromosomes are pulled away or to opposite ends of the cell
telophase nuclear membrane reforms
cytokensis occurs cytoplasmic division resulting in two new cells
meiosis the cell division that produces gametes with half the number of chromosomes
haploid contain half the number of chromosomes
diploid contain the normal number of chromosomes
somatic cells body cells
crossing over prophase 1 chromoses cross over and exchange information this results in randomized traits
ribosomes potein production
proteins enzymes structual proteins, hormones
mitosis repair, replace and growth
interphase cells spend about 90 percent of their life in interphase replicated dna 2 complete sets of chromosomes that must be distributed equally
prokaryote doesnt have a nucleus
eukaryote has a nucleus
3 main jobs of cells 1. make energy 2. make proteins 3. make more cells
cell membrane contols what enters and leaves the cell, signals from other cells phospholopd bilayer
cytoplasm holds organelles in place
vacuole and vesticle storage and transports
lysosomes recycle and clean up, digest
Created by: Curstyn2016