AQA A Level Biology复习笔记6.4.7 Diabetes
The Causes of Diabetes There are over 3 million people suffering from diabetes in the UK Diabetes is a condition in which the homeostatic control of blood glucose has failed or deteriorated ...
The Causes of Diabetes There are over 3 million people suffering from diabetes in the UK Diabetes is a condition in which the homeostatic control of blood glucose has failed or deteriorated ...
The Role of the Liver in the Conversion Between Glycogen & Glucose The liver plays a vital role in the conversion between glycogen and glucose The conversion between these molecules help...
The Role of Adrenaline A hormone called adrenaline can affect blood glucose concentration When it is secreted it increases the concentration of blood glucose It does this by binding to diffe...
The Action of Glucagon If the concentration of glucose in the blood decreases below a certain level, cells may not have enough glucose for respiration and may not be able to function normall...
The Action of Insulin If the concentration of glucose in the blood decreases below a certain level, cells may not have enough glucose for respiration and may not be able to function normally...
Negative Feedback The majority of homeostatic control mechanisms in organisms use negative feedback to maintain homeostatic balance (ie. to keep certain physiological factors, such as blood ...
Investigating Muscle Fatigue Prolonged or sustained exercise requires the repeated contraction of muscles Over time this can cause muscles to fatigue so they are no longer able to contract a...
Slow & Fast Skeletal Muscle Fibres There are two types of muscle fibres found in muscles Fast fibres Slow fibres Human muscles are made up of both types of muscle fibres Some musc...
The Sliding Filament Model Structure of thick & thin filaments in a myofibril The thick filaments within a myofibril are made up of myosin molecules These are fibrous protein molecules w...
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