Starter quiz
- What is the name of the sugar that is a reactant for respiration?
- glycogen
- glucose ✓
- oxygen
- water
-
Which gland in the endocrine system is circled in this image?- adrenal glands
- thyroid gland
- ovaries
- pancreas ✓
-
- The pancreas is a gland in the endocrine system, what does it secrete?
- lysozyme
- glucose
- hormones ✓
- white blood cells
-
- Match the activity to the effect it has on blood glucose concentration.
- eating⇔increase in blood glucose concentration ✓
- exercising⇔decrease in blood glucose concentration ✓
- How do hormones travel around the body?
- in the red blood cells
- along neurones
- in the blood plasma ✓
-
- In which sub-cellular structure does aerobic respiration take place?
- nucleus
- mitochondria ✓
- ribosome
- chloroplast
-
Exit quiz
- Which organ in the body detects changes in blood glucose concentration?
- liver
- small intestines
- pancreas ✓
- stomach
-
- What process regulates the internal conditions in the body for optimum enzyme activity?
- respiration
- digestion
- homeostasis ✓
- body regulation
-
- Match the hormone to the condition in which they are secreted.
- insulin⇔blood glucose too high ✓
- glucagon⇔blood glucose too low ✓
- Put these steps in order to show what happens after eating a meal.
- 1⇔Eating causes an increase in blood glucose concentration.
- 2⇔The pancreas detects the increase in blood glucose concentration.
- 3⇔The pancreas secretes insulin into the blood.
- 4⇔Insulin targets the liver and muscle cells.
- 5⇔Blood glucose levels decrease back to normal.
- What do liver and muscle cells store glucose as?
- glucagon
- insulin
- starch
- glycogen ✓
-
- Which statements are true when blood glucose is too low?
- The pancreas secretes glucagon. ✓
- The liver cells absorb more glucose.
- Glycogen in the liver cells is converted into glucose. ✓
- Glucose in blood is stored as glycogen in the liver.
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Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- If conditions in the body change too much, this can be dangerous to our health.
- Glucose travels in the blood and is delivered to cells for respiration.
- The hormones insulin and glucagon help to keep human blood sugar level constant.
- The pancreas secretes insulin when blood sugar level is too high; the liver absorbs glucose and coverts it to glycogen.
- The pancreas secretes glucagon when blood sugar level is too low; the liver converts glycogen into glucose in the blood.
Common misconception
Not linking the idea that glucose concentration is important for cellular respiration, even during times of rest.
There are a selection of slides in LC1 that specifically link glucose and respiration and discuss the idea of respiration occurring during rest.
Keywords
Respiration - a chemical reaction in livings organisms that releases energy from glucose
Glucose - is a sugar that travels in the blood and is supplied to cells for respiration
Glycogen - is a stored form of glucose found in liver and muscle cells
Insulin - a hormone secreted by the pancreas when blood glucose is too high, lowering blood glucose levels
Glucagon - a hormone secreted by the pancreas when blood glucose is too low, increasing blood glucose levels
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