Sensory neurone - Study guides, Revision notes & Summaries

AQA GCSE Biology Paper 2 Practice Questions and Answers 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 ce...

2023 AQA A-level BIOLOGY 7402/3 Paper 3 Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. A-level BIOLOGY Paper 3 Wednesday 21 June 2023 Morning Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point ...

Aqa a level Biology - Topic 6 - survival and response questions and answers well illustrated. What is a stimulus? - correct answer. A change in the environment of an organism What is a tactic response? - correct answer. Directional movement in response to a stimulus What is a kinetic response? - correct answer. Non directional random movement in response to a stimulus What is a positive and negative taxis? - correct answer. Positive taxis- organism moves tow...

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...

Aqa A Level psychology- Biopsychology exam questions and answers 2024 100% pass What components make up the Central Nervous system - Answer-The brain and spinal cord The peripheral nervous system has two divisions, what are they? - Answer-Autonomic nervous system and Somatic Nervous system Which division of the Peripheral Nervous System contains the sympathetic and parasympathetic divisions? - Answer-Autonomic What is the somatic nervous systems role? - Answer-To communicate with sense ...

2 Section A Answer all questions in this section. You are advised to spend no more than 1 hour and 15 minutes on this section. 0 1 . 1 Describe how stimulation of a Pacinian corpuscle produces a generator potential. [3 marks] Scientists investigated the stimulation of a Pacinian corpuscle in the skin of a fingertip. The scientists applied two different pressures to the fingertip and recorded the changes in membrane potential of the Pacinian corpuscle’s sensory neurone. Figure 1 show...

AQA A-level BIOLOGY 7402/3 Paper 3 Mark scheme June 2023. (There are) stretch-mediated sodium ion channels (in the membrane); 2. (Increased pressure) deforms/changes (sensory neurone/axon) membrane/lamella(e) OR (Increased pressure) deforms/changes sodium ion channels; 3. Sodium ion channels open; 4. Sodium ions diffuse in; 5. Depolarisation (leading to generator potential); 3 max (3 x AO1) 1. 2. 3. or 4. Accept Na+ Max 2 if only reference to sodium and not sodium ions 4. Accep...

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? - 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 ...