Motor neurone - Study guides, Revision notes & Summaries

AQA A Level Biology - Topic 6 - Survival And Response What is a stimulus? A change in the environment of an organism What is a tactic response? What is a kinetic response? Directional movement in response to a stimulus Non directional random movement in response to a stimulus What is a positive and negative taxis? Positive taxis- organism moves towards stimulus Negative taxis - organism moves away from stimulus What Are receptors? different types What are effec...

AQA GCSE Biology Paper 2 Questions and Answers 100% Pass What is homeostasis? - Answer️️ -The maintenance of a constant internal environment. What is a stimulus? - Answer️️ -A change in your environment than requires a response. e.g Light, sound, touch, pressure, pain, chemical or temperature. What do the receptors do? - Answer️️ -Detect the stimulus or change in environment. What happens after the receptors? - Answer️️ -Receptors send messages to the CNS via the sensory ...

Role of neurones - Answer To transmit electrical impulses rapidly around the body to allow the organism to respond to changes in internal and external environment Parts of a general neurone - Answer Cell body, Dendron, axon, Role of the cell body - Answer To produce neurotransmitters Structure of cell body - Answer Nucleus, cytoplasm, lots of endoplasmic reticulum, mitochondria Function of dendrons - Answer To transmit electrical impulses towards the cell body Function o...

What is homeostasis? - answer The maintenance of a constant internal environment. What is a stimulus? - answer A change in your environment than requires a response. e.g Light, sound, touch, pressure, pain, chemical or temperature. What do the receptors do? - answer Detect the stimulus or change in environment. What happens after the receptors? - answer Receptors send messages to the CNS via the sensory neurone. What makes up the central nervous system? - answer The brain or spinal cord ...

What is homeostasis? - correct answer The maintenance of a constant internal environment. What is a stimulus? - correct answer A change in your environment than requires a response. e.g Light, sound, touch, pressure, pain, chemical or temperature. What do the receptors do? - correct answer Detect the stimulus or change in environment. What happens after the receptors? - correct answer Receptors send messages to the CNS via the sensory neurone. What makes up the central nervous system...

What is homeostasis? The regulation of the conditions inside your body and cells to maintain a stable internal environment, in response to changes in both internal and external conditions Name three coordination centres The brain, the spinal cord and the pancreas What is negative feedback? When your body brings the level of something (e.g. water or temperature) back to normal if it becomes too high or too low What detects a stimulus? A receptor, e.g. skin receptors detec...

AQA GCSE Biology Topic 5 Homeostatis Homeostasis The maintenance of a constant internal state in a changing environment Why is homeostasis important? Homeostasis is important because it is essential for the survival of cells and enzymes Automatic control systems are made up of Receptors, coordination centres, effectors negative feedback a mechanism of response in which a stimulus initiates reactions that reduce the stimulus Receptor Detects change Coordination centre Receives an...

Control movement correct answers The nervous system uses visual and kinaesthetic input to.... 2 correct answers How many streams are in our visual pathway? - The where -Identifies movement in the environment -spatial cues correct answers What is the dorsal stream? Posterior to parietal cortex correct answers Where is the dorsal stream located? - The what -Identifies information about objects -Pattern discrimination and recognition correct answers What is the ventral stream? Te...

AQA GCSE Biology - B5 Exam Questions and Answers What is homeostasis? - Answer️️ -The regulation of conditions inside the body to maintain a stable internal environment in response to changes in both internal and external conditions What things do automatic control systems regulate? - Answer️️ -Body temperature, blood glucose level and water content What are the three main components that work together in automatic control systems? - Answer️️ -Receptors, coordination centres ...

AQA GCSE Biology topic 5 - Homeostasis and Response Homeostasis maintaining a stable environment e.g. nervous and hormonal communications, body temp, blood glucose levels. negative feedback A process that counteracts a change - increasing and decreasing levels to maintain homeostasis, e.g. sweating to lower the body temp the nervous system A system that manages the body through negative feedback, hormones and effectors made up of Central nervous system (CNS - brain + spinal cord), se...