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Prokaryote ◦ No nucleus ◦ Unicellular ◦ Example: Bacteria Eukaryote ◦ Nucleus ◦ Complex organelles ◦ Uni or multicellular ◦ Example: Us!
Responsible organelles ◦ Animal cell – mitochondria ◦ Plant cell – chloroplast It’s all about ATP ◦ Make it or break it
Cell membrane – controls what goes in and out ER – tubes for transport Lysosome – digestive enzymes Vacuole – temp. storage Mitochondria – energy! Golgi – repackage stuff Cytoplasm - fluid
Growth and division of cells IPMAT ◦ Interphase – 80% of the time – DNA copies ◦ Prophase ◦ Metaphase ◦ Anaphase ◦ Telophase
Process of cell division resulting in two identical cells (daughter cells) that are the same as the parent cell. Body cells are made.
Process of cell division in which four "daughter" cells are produced from one "parent" cell, each with half of the genes of the parent. Makes gametes or sex cells.
Mitosis – somatic cells Meiosis – makes sex cells (sperm & egg) ◦ AKA gametes ◦ Have a half-set of chromosomes (haploid) ◦ 2 cell divisions ◦ Makes 4 cells ◦ Same phases IPMATPMAT
Mitosis ◦ 1 cell division ◦ Daughter cells identical to parents cells ◦ Produces 2 cells ◦ 2n → 2n ◦ Produces cells for growth and repair ◦ No crossing over Meiosis ◦ 2 cell divisions ◦ Daughter cells different from parents ◦ Produces 4 cells ◦ 2n → 1n ◦ Produces gametes ◦ Crossing over
The movement of particles from high to low concentration Osmosis = water only Cell membrane responsible ◦ Semi-permeable Want to achieve homeostasis
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Cell Structures, Functions and Transport. Section 7-2 Figure 7-5 Plant and Animal Cells Go to Section: Animal Cell Nucleus Nucleolus Cell Membrane Cytoplasm.
1 Reproduction and Meiosis. 2 Reproduction Reproductionthe process of producing offspring –Asexualone parent, offspring are genetically identical to parent.
I.Sexual Reproduction --two parents combine. 1. The sex cell from the male parent is sperm. a. Sperm head is almost all nucleus (genetic info) 2. The.
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Inquiry into Life Twelfth Edition Chapter 5 Lecture PowerPoint to accompany Sylvia S. Mader Copyright © The McGraw-Hill Companies, Inc. Permission required.
Meiosis The process in which the nucleus of a cell completes two successive divisions that produce four nuclei, each with a chromosome number that has.
Copyright © by Holt, Rinehart and Winston. All rights reserved. When are sister chromatids formed? When are they separated? When are homologous pairs separated?
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