Lecture 8.Feb5.updated - BIO 311C Spring 2010 Lecture 8...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

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

Unformatted text preview: BIO 311C Spring 2010 Lecture 8 Friday 5 Feb. 2010 Exam 1: in this room at this time on Friday, Feb. 12 (next Friday) We will devote the last ~20 minutes of next Wednesdays lecture to a review of the subject matter. The exam will cover:- the text reading assignments through the Feb. 10 assignment,- the lecture material and web-based PowerPoint through Mondays lecture, - the introductory information covered during the discussion periods. *- shield the cell from physical and/or chemical agents in its environmen t,- protect the cell from being eaten by other cells or organisms,- make the cell stronger and/or more rigid,- protect the cell from drying out,- anchor the cell to a surface or to another cell,- allow the cell to swim and/or float in water,- serve as an array of sensors, allowing the cell to detect and react to its environment, and/or allowing other cells in the environment to detect and react to it. External Coatings of Cells * Nearly all kinds of cells (prokaryotic and eukaryotic) have a coating external to the plasma of membrane. Depending on the kind of cell and its location, this coating may be used to: Animal cells have a complex array of molecules, especially proteins and carbohydrates, on their external surfaces. Textbook Fig. 6.30, p. 120. glycocalyx plasma membrane external to cell cytoplasmic matrix The glycocalyx is a name for the thin external surface that occurs on most animal cells. * According to definitions provided in this course, flagella of eukaryotic cells should be considered as a component of the protoplasm while bacterial flagella are external to the protoplasm. Can you explain why? Some Features of Plant Cells that Distinguish them from Animal Cells Typical plant cells contain:- plasmodesmata,- a central vacuole,- a thick cell wall,- plastids. Typical plant cells do not contain:- lysosomes,- microtubules that are organized into cilia, flagella or centrioles....
View Full Document

Page1 / 17

Lecture 8.Feb5.updated - BIO 311C Spring 2010 Lecture 8...

This preview shows document pages 1 - 5. Sign up to view the full document.

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