IB DP Biology: HL复习笔记11.3.4 The Role of ADH
ADH Living organisms can maintain a safe balance of water and solutes in their bodies by osmoregulation Osmoregulation is an example of homeostasis The kidneys play an important role in osmoregulat...
IB DP Biology: HL复习笔记11.3.3 Conserving Water
Conserving Water & the Loop of Henlé Animals that live in dry environments such as deserts depend on their ability to conserve water for survival Such animals often have very long loops of Henl...
IB DP Biology: HL复习笔记11.3.2 Kidney: Structure & Function
Ultrastructure of the Glomerulus and Bowman's Capsule Introduction to kidney structure Humans have two kidneys, which remove waste products from the blood and maintain the blood's balance of water ...
IB DP Biology: HL复习笔记11.3.1 Osmoregulation in Organisms
Organisms & Osmolarity in the Environment Living organisms need to maintain a safe balance of water and solutes in their cells Failure to maintain this balance will mean that an organism's cell...
IB DP Biology: HL复习笔记11.2.5 Skills: Anaylising Muscle Contractions in Electron Micrographs
Analysing Muscle Contractions in Electron Micrographs Many biological structures are too small to be seen by the naked eye Optical microscopes are an invaluable tool for scientists as they allow fo...
IB DP Biology: HL复习笔记11.2.4 Skills: The Human Elbow & Sarcomeres
Annotating the Human Elbow The human elbow is an articulated synovial joint which means that it is a junction where two moving bones meet encapsulated in synovial fluid It consists of several compo...
IB DP Biology: HL复习笔记11.2.3 Mechanism of Muscle Contraction
Sliding Filament Model The thick filaments within a myofibril are made up of myosin molecules These are fibrous protein molecules with a globular head The fibrous part of the myosin molecule anchor...
IB DP Biology: HL复习笔记11.2.2 Skeletal Muscle
Skeletal Muscle Fibres: Structure Muscles in the body that are attached to the skeleton and aid movement are called skeletal muscles Other muscle types include: Cardiac muscle which is found in the...
IB DP Biology: HL复习笔记11.2.1 Requirements for Movement
Bones & Exoskeletons The effective movement of the human body requires both muscle and an incompressible skeleton Bones and exoskeletons provide anchorage for muscles and act as levers Mammals ...
