Organsims - Study guides, Class notes & Summaries

RESPIRATION Process of oxygen uptake and release of carbon dioxide is called respiration Diffusion may be aided by bulk movement such as the movement of air in and out of the lungs but the concentration gradients remain as the fundamental driving force for moving the respirator gases Easy access to oxygen in the atmosphere permits a high rate of metabolisms and a high degree of organizational development HOW WATER AND AIR DIFFER AS RESPIRATION MEDIUMS BREATHING MEDIUM: ATMOSPHERE Composi...

  infections - with Answers:bacteria, viruses fungi reservoir - with Answers:natural habitat of the organism portal of exit - with Answers:point of escape for the organism from the reservoir means of transmission - with Answers:direct contact, indirect contact, airborne route portal of entry - with Answers:point at which organisms enter a new host susceptible host - with Answers:must overcome resistance mounted by host's defenses the infection cycle - with Answers:Infectiou...

3 general factors to consider before antibacterial therapy Ans: Viral --no abx no blind treatment therefore obtain swabs knowledge of mos prevelant organsims and current sensitivity helpful (narrow ovr broad) 3 general pt admin factors to consider Ans: Dose- determined by age severity renal hepatic function- underdosing issue but consider aminglyco and narrow theraputic ranges route admin- if sever iv. oral if bioavailable. parenteral if oral unavailbel eg vomitting etc (avoid painfu...

In-class presentation notes for Principles of Biology: Organisms to Ecosystems - Topic: Structural Support in Plants

This summary covers key parts of the Edexcel iGCSE Biology respiration section in a concise and easy-to-read manner. Contains colour and diagrams to optimise learning. Can be used by all GCSE science students aiming for the top grades, and even by ks3 students wishing to extend themselves.

makeup of euk organisms

Theories of Natural selection ways of classifying organsims how meiosis introduces genetic variation