chapt03LectureOutlines

chapt03LectureOutlines - Chapter 3 Cell Structure and...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Chapter 3 Cell Structure and Function
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 Outline Cellular Organization Plasma Membrane Functions Nucleus Endomembrane System Cytoskeleton Cilia and Flagella Cellular Respiration Fermentation
Background image of page 2
3 Cell Size Relatively small cell size is explained by surface-to-volume-ratio. As cells get larger in volume, proportionate amount of surface area decreases.
Background image of page 3

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

View Full DocumentRight Arrow Icon
4 Microscopy and Cell Structure Three common types of microscopes: Compound light microscope. Transmission electron microscope (TEM). Scanning electron microscope (SEM).
Background image of page 4
5
Background image of page 5

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

View Full DocumentRight Arrow Icon
6 Cellular Organization The 3 parts of a typical cell are: 1. Plasma membrane ( cell membrane, unit membrane ) surrounds the cell and regulates entrance and exit of substances. 2. Nucleus is the centrally located structure containing chromosomes and is the control center of the cell. 3. Cytoplasm is the portion of the cell between the nucleus and plasma membrane.
Background image of page 6
7 Cellular Organization Organelles are small membranous structures, each with a specific function. Cytoskeleton is a network of interconnected filaments and microtubules in the cytoplasm that maintain cell shape.
Background image of page 7

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

View Full DocumentRight Arrow Icon
8
Background image of page 8
9 Plasma Membrane Is the gate keeper of the cell in that it determines what goes in and out of the cell. Plasma membrane is a phospholipid bilayer with attached or embedded proteins. Polar head and non-polar tails. Form spherical bilayer when placed in water. Plasma membrane proteins form receptors, conductors, or enzymes in metabolic reactions.
Background image of page 9

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

View Full DocumentRight Arrow Icon
10
Background image of page 10
11 Plasma Membrane Functions Plasma membrane is selectively permeable (?) , and regulates movement of molecules and ions across the cell membrane.
Background image of page 11

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

View Full DocumentRight Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 41

chapt03LectureOutlines - Chapter 3 Cell Structure and...

This preview shows document pages 1 - 12. Sign up to view the full document.

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