Tutorial
AQA GCSE Combined Science: Homeostasis and Response
This deck covers the principles of homeostasis and how organisms respond to their environment. It details the structure and function of the human nervous system, including the reflex arc. It also covers the endocrine system, focusing on the control of blood glucose by insulin and the causes of Type 1 and Type 2 diabetes. The deck explains the roles of hormones in the menstrual cycle and the principles of contraception. It adheres to the Combined Science specification, excluding detailed content on the brain, eye, kidney, and control of body temperature. The deck includes the required practical on investigating the effect of a factor on human reaction time.
Tutorial
AQA GCSE Combined Science: Homeostasis and Response
This deck covers the principles of homeostasis and how organisms respond to their environment. It details the structure and function of the human nervous system, including the reflex arc. It also covers the endocrine system, focusing on the control of blood glucose by insulin and the causes of Type 1 and Type 2 diabetes. The deck explains the roles of hormones in the menstrual cycle and the principles of contraception. It adheres to the Combined Science specification, excluding detailed content on the brain, eye, kidney, and control of body temperature. The deck includes the required practical on investigating the effect of a factor on human reaction time.
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Deck Contents
58 CardsLesson#1
Welcome to this deck on homeostasis and response. We'll explore how your body cleverly maintains a stable internal environment, a process called homeostasis. We'll look at the two main communication systems that make this possible: the fast-acting nervous system and the slower endocrine system, which uses hormones. You'll learn about reflex actions, how blood sugar is controlled, the hormones of the menstrual cycle, and methods of contraception. We'll also cover the required practical for investigating human reaction time.
Lesson#2
Homeostasis is the regulation of the internal conditions of a cell or organism to maintain optimum conditions for function, in response to internal and external changes. Think of it like a central heating system in a house. A thermostat detects if the temperature changes and switches the heating on or off to keep it stable. Your body does the same for things like temperature, water levels, and blood glucose levels. This is vital because your body's enzymes, which control all chemical reactions, work best in a narrow range of conditions.
Quiz#3
What is the term for the regulation of internal conditions to maintain a stable environment?
homeostasis
Quiz#4
Why is maintaining a stable internal environment, known as homeostasis, important for the body?
for optimal enzyme action
Lesson#5
The human nervous system is one of your body's two main control systems. It allows you to react to your surroundings and coordinate your behaviour. It's incredibly fast. It consists of two main parts. The Central Nervous System, or C N S, is made up of the brain and the spinal cord. The other part is the peripheral nervous system, which is the network of nerve cells, called neurones, that carry information to and from the C N S.
Quiz#6
What does the central nervous system, or CNS, consist of?
brain and spinal cord
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