Starter quiz
- Which part of the blood transports dissolved substances?
- white blood cells
- plasma ✓
- platelets
- red blood cells
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- Match the systems to their correct description.
- nervous system⇔made up of the brain, spinal cord and nerves ✓
- endocrine system⇔made up of glands and organs that secrete hormones ✓
- Which of the following is a female reproductive organ?
- pancreas
- ovaries ✓
- testes
- kidney
-
- Which hormone is involved in the fight or flight response and is triggered in stressful situations?
- progesterone
- testosterone
- insulin
- adrenaline ✓
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- The changes that happen during puberty are because of chemical messengers called hormones. Which glands release the sex hormones?
- ovaries ✓
- pancreas
- breasts
- testes ✓
- liver
-
- What is the name of the sugar that is transported in the blood plasma and delivered to cells as a reactant for respiration?
- glucose ✓
- starch
- carbon dioxide
- chlorophyll
-
Exit quiz
Match each letter to the endocrine gland it is labelling.- A⇔pituitary gland ✓
- B⇔thyroid gland ✓
- C⇔adrenal gland ✓
- D⇔pancreas ✓
- E⇔ovary ✓
- F⇔testes ✓
- A ______ is a chemical messenger that is secreted by glands into the bloodstream to target certain organs.
- 'hormone' ✓
- Put these stages in order to show how the endocrine system brings about a change in the body.
- 1⇔Receptor cells detect a change in the environment (stimuli).
- 2⇔Electrical impulses are sent to the brain.
- 3⇔The brain sends electrical impulses to specific glands.
- 4⇔Glands are triggered to secrete hormones.
- Which statements are true for the endocrine system?
- The pituitary gland is known as the master gland. ✓
- Hormones can act on any gland in the body.
- Hormones travel in the blood plasma. ✓
- All organs are glands.
-
- Which statements are true about the endocrine system?
- It involves hormones being secreted by glands. ✓
- It only involves neurones transmitting electrical impulses.
- It is quick to act with a short response time.
- It is slower to act with a longer lasting response. ✓
-
- Which of the following changes in the body can be triggered by changes in hormone levels?
- puberty ✓
- infancy
- menopause ✓
- reflexes
- diffusion
-
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- The human body has an endocrine system that uses hormones to control changes in the body.
- Hormones are chemicals secreted by glands, transported in blood plasma and detected by receptors on cells and tissues.
- Changes in the body can be triggered by an increase in hormones (e.g. puberty) and a decrease in them (e.g. menopause).
- Changes in the body are detected by receptors; the nervous system sends nerve impulses to glands to secrete hormones.
Common misconception
Pupils may think that all hormones in the body form part of the reproductive system and its regulation.
The slide deck gives specific examples of hormones that are not part of the reproductive system; this includes the example of antagonistic hormones.
Keywords
Endocrine system - A system that regulates body conditions; glands secrete hormones into the blood that target specific organs.
Hormone - A chemical substance produced by a gland that travels in the bloodstream to a specific organ.
Gland - An organ or tissues that produces and secretes substances, such as hormones.
Receptor - Specialised cells that detect changes in the environment (stimuli) and respond by stimulating electrical impulses.
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