1 markWhich of the following statements is not true for homeostasis?
Homeostasis is regulated by the cerebrum of the brain.
Homeostasis requires input from the endocrine system and the nervous system.
Blood glucose levels, body temperature and the menstrual cycle are all regulated through homeostasis.
Negative feedback loops are a key mechanism of many homeostatic systems.
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1 markWhich row correctly outlines the cause of, and treatment for, Type 1 diabetes?
| Cause | Treatment |
A | Inability of the pancreas to produce insulin | Insulin injection |
B | Inability of the pancreas to produce insulin | Controlling diet and regular exercise |
C | Reduced sensitivity of cells to insulin | Controlling diet and regular exercise |
D | Inability of the liver to produce insulin | Insulin injection |
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1 markThe graph shows blood glucose levels after eating a meal.
Which point A, B, C or D on the graph would the insulin level in the blood be at its highest level?
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1 markWhich of these can be used to treat type 2 diabetes but not type 1?
Diet and exercise
Exercise only
Insulin and diet
Insulin, diet and exercise
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1 markMany human diseases are caused by risk factors.
Food and drink can be major risk factors.
Which disease does not have food or drink as a major risk factor?
Type 1 diabetes
Cirrhosis of the liver
Type 2 diabetes
Cardiovascular disease
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1 markShort-term starvation affects the levels of blood glucose, liver glycogen and the hormones insulin and glucagon.
Which line on the graph represents the level of glucagon in the blood during short-term starvation?
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