SYLLABUS CONTENT
How do the systems of the body influence and respond to movement?
Explain the interrelationship between the digestive and endocrine systems and movement, including structure and function and factors that impact on the efficiency of the systems
The Digestive System
The Digestive System is responsible for transforming the raw materials we eat into useable nutrients and energy to sustain life. The digestive system consists of 10 different organs, 20 different types of specialised cells and extends over 9 m, making it one of the most complex body systems.
Digestion is the breakdown of food into the smallest possible units to make absorption, storage and use possible. This involves both mechanical (chewing and stomach movements) and chemical processes (stomach acids and enzymes).
The Digestive System: Structure and Function
Watch the following video and read through pages 218-219 of the Cambridge textbook. Then use that information to complete the worksheet below.
Activity
Within groups you are to complete the A3 digestive system posters. These will be hung up on the wall for future reference. You must:
Create a coloured visual reference between the organ and the text
Label each section correctly
Provide a brief outline of the organs roles and responsibilities.
The Endocrine System
The Endocrine System is a network of glands that produce chemical messengers called hormones. These hormones travel through the bloodstream, sending signals to specific target cells or tissues to regulate various bodily functions. Working closely with the nervous and immune systems, the endocrine system helps maintain internal balance (homeostasis) and manages the body's responses to stress, growth, metabolism, and more.
The Endocrine System
Read through page 220 of the Cambridge textbook. Then, describe the three key parts of the endocrine system:
Glands
Hormones
Receptors
ACTIVITY
Watch the following video exploring the endocrine system. Then complete the labelling sheet below.
The Interrelationship Between the Digestive and Endocrine System
The digestive and endocrine systems work closely to digest food, absorb nutrients, and regulate energy in the body. The endocrine system releases hormones which help with the release of stomach acid, bile, and enzymes to break down food. The pancreas produces insulin and glucagon, which control blood sugar levels by helping cells absorb glucose or releasing stored glucose from the liver. Hormones like ghrelin signal hunger, while leptin and insulin signal fullness. Nutrients absorbed by the digestive system are stored or used for energy, with the liver playing a key role under hormonal control. Stress hormones like cortisol can slow digestion, showing how emotions and stress impact these systems. Feedback loops in the endocrine system help maintain balance, ensuring the body uses nutrients effectively.
Factors that impact the efficiency of the digestive and endocrine systems
Read through pages 221-222 of the Cambridge textbook. Then using that information and your own research, complete the writing task below:
CUBE the following question. Then use your verb sheet and ALARM matrix to formulate a response.
Explain how poor nutrition and stress can impact the efficiency of the digestive and endocrine systems.
5 marks
Assess your response by applying the GLUE method. Highlight the following:
Green - Specific verb requirements/language
Pink - Links to the question
Orange - Syllabus-specific content
Yellow - Examples
Award yourself a mark out of 5.
Annotate what you did well and areas for improvement.