{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

chapters 5-8 - minor

chapters 5-8 - minor - Chapter 5 cell structure and...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 5 cell structure and function Cell theory o All living things are composed of one or more cells o The cell is the smallest unit with properties of life o Cell come from preexisting cells Basic features of all cells o Plasma membrane (PM) o Dna - heredity o Cytoplasm o Metabolism o Cells are small Prokaryotic cells o Small, 1-5 picometers o No membrane-bound organelles o No nucleus o DNA in circular loop o Bacteria and Archaea Eukaryotic cells o Larger, 8-100 micrometers o Membrane-bound organelles o Nucleus o DNA in linear chromosomes o Single-celled protists o Multi-celled animals, planets, and fungi Nucleus o Chromatin threads o Nucleolus o Nuclear envelope o Pores Ribosomes o Protein synthesis o Made of RNA and protein o Free or attached to rough ER Endomembrane syster o Endoplasmic reticulum (ER); Golgi complex, vesicles o Series of membranes with cells o Rough ER – proteins o Smooth ER – lipids Golgi o Processes proteins and lipids from ER o Packages and ships to final destination Vacuoles o 3 types
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
o 1. Food temporary, formed from phagocytosis o 2. Contractile – remove extra water o 3. Central – in plants, water regulation Mitochondria o Produce ATP The chloroplast o Photosynthesis Plastids o In plants o Chloroplasts: photosynthesis o Chromoplasts: pigments o Amyloplasts: starch The Cytoskeleton o Microfilaments – smallest o Many different proteins o Microtubule o Actin subunits o Tubulin subunits Cilia and flagella o Extensions of PM Move cells or fluid Cilia: short and many Flagella: longer and few Filled with microtubules (9+2) arrangement: 9 pairs in periphery; 2 singlets in center
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 6

chapters 5-8 - minor - Chapter 5 cell structure and...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online