Starter quiz
- What is the name of the sugar that is a reactant for respiration?
- glycogen
- glucose ✓
- oxygen
- water
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- Which of the following is a biological catalyst?
- starch
- catalyser
- enzyme ✓
- hormone
-
Which gland in the endocrine system is circled in this image?- adrenal glands
- thyroid gland
- ovaries
- pancreas ✓
-
- Match the activity to the effect it has on blood glucose concentration.
- eating⇔increases blood glucose concentration ✓
- exercising⇔decreases 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 ✓
- ribosomes
- chloroplasts
-
Exit quiz
- Which organ in the body detects changes in blood glucose concentration?
- liver
- small intestines
- pancreas ✓
- stomach
-
- Which process regulates the internal conditions in the body for optimum enzyme activity?
- respiration
- digestion
- homeostasis ✓
- body regulation
-
- What is the name of the hormone that the pancreas secretes if blood glucose levels are too high?
- 'insulin' ✓
- 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 correct?
- Insulin causes glycogen to be converted into glucose.
- Exercising and fasting decreases blood glucose concentration. ✓
- If respiration rate increases then blood glucose concentration decreases. ✓
- Storing blood glucose as glycogen will increase blood glucose levels.
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Worksheet
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Presentation
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Lesson Details
Key learning points
- If conditions in the body change too much this can be dangerous to our health (e.g. enzymes).
- Homeostasis is the regulation of internal conditions for optimum enzyme activity.
- Glucose travels in the blood plasma and is delivered to cells for aerobic respiration.
- The hormone insulin helps to keep human blood sugar level constant.
- The pancreas secretes insulin when blood sugar level is too high; it causes liver cells to convert glucose to glycogen.
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 LC2 that specifically link glucose and respiration and discuss the idea of respiration occurring during rest.
Keywords
Homeostasis - homeostasis is the regulation of the internal conditions to maintain optimum conditions for enzyme action and all cell functions
Respiration - a chemical reaction in living organisms that releases energy from glucose
Insulin - a hormone secreted by the pancreas when blood glucose is too high, lowering blood glucose levels
Glucose - a sugar that travels in the blood and is supplied to cells for respiration
Glycogen - a stored form of glucose found in liver and muscle cells
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