Sensory neurones - Study guides, Class notes & Summaries

What is a kinetic response? 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? Detect stimuli- can be cells or proteins on cell surface membrane , loads of different types What are effectors? Cells that bring about a response to a stimulus to provide an effect ( muscle cells, glands) Receptors communicate with effectors via...

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

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...

negative tropisms - Answer-growth away from a stimulus Define homeostasis - Answer-Homeostasis is the regulation of internal conditions in the body. It is necessary to maintain optimal conditions for body functioning. These internal conditions can change as a result of processes within the body and as external conditions change. systems responsible for homeostasis - Answer-the nervous system - uses electrical impulses to communicate the endocrine system - uses chemical molecules to commun...

WHAT IS THE MOST CAUDAL PART OF PART IF THE CENTRAL NERVOUS SYSTEM? - ANSWER-SPINAL CORD WHAT EMBRYONIC BRAIN REGION IS THE PONS DEVELOPED FROM? - ANSWER-METENCEPHALON WHAT NEURAL CELL TYPE IS PURPORTED TO FORM THE SO CALLED "BLOOD BRAIN BARRIER"? - ANSWER-ASTROCYTES WHICH LOBE OF THE BRAIN IS SITUATED ON THE INFEROMEDIAL ASPECT OF THE CEREBRAL CORTEX? - ANSWER-LIMBIC WHAT IS THE LARGEST CROSSING FIBRES IN THE CNS? - ANSWER-CORPUS COLLOSUM IN GENERAL, HOW MANY NEURONES IN SYMPA...

AQA GCSE Biology topic 5 - Homeostasis and Response Exam Practice Questions and Answers 100% Correct homeostasis - Answer️️ -maintaining a stable environment e.g. nervous and hormonal communications, body temp, blood glucose levels. negative feedback - Answer️️ -A process that counteracts a change - increasing and decreasing levels to maintain homeostasis, e.g. sweating to lower the body temp the nervous system - Answer️️ -A system that manages the body through negative feedb...

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 ...

AQA GCSE Biology Paper 2 With All 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. ...

Auxin is a plant hormone produced in the shoot tip. Auxin causes cell elongation and travels down the stem from the tip. Auxin is destroyed by sunlight. Explain how this leads to positive phototropism in the plant. Correct Answer Auxin is broken down on the sunny side of the plant. Cells on the shaded side will elongate due to auxin, causing curvature of the stem so that the plant grows towards the light. Ivy plants often use walls or other plants as a support when growing. State the type of ...

Complete Biopsychology revision notes for AQA Psychology A-Level, written by a straight A* student. Includes PEEL paragraphs for every topic and diagrams where needed. Well organised and in order. Includes collated information from class, textbooks and online. Topics include: The nervous system, The structure and function of sensory, relay and motor neurones, Synaptic transmission, The endocrine system, The ‘fight or flight’ response, Localisation of function, Hemispheric lateralisation, S...