Neurone Study guides, Revision notes & Summaries

Primary motor innveration to the larynx and velum is provided by which cranial nerve? - Cranial nerve X (Vagus) Fela is a third-grade student in a public school. She is a speaker of African American Vernacular English (AAVE) who has difficulty with the Standard American English (SAE) dialect used in her classroom. Her teacher believes that Fela's language skills are affecting her academic performance and has referred her to the school's speech-language pathologist. Which of the following ...

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 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...

Edexcel A Level Biology Paper 3 Mark scheme June 2022: (9BI0) Paper 3: General and Practical Principles in Biology. A description including four of the following • {sodium / Na} channels open (1) • sodium ions flow into {axon / cell / neurone} (1) • this causes depolarisation (1) • {sodium / Na} channels close at {0.8ms / 30mV} (1) • {potassium / K} channels open at {0.8ms / 30mV} (1) (4) Question Number Answer Additional Guidance Mark 1(b) An answer that includes the followin...

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 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...

AQA A-level BIOLOGY 7402/3 Paper 3 Mark scheme June 2023 (VERIFIED) (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...

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...

Describe the events of fertilisation that occur after the acrosome reaction. -Membrane of sperm and egg cell fuse together -cortical granules release contents into zona pellucida -Zona pellucida thickens -Haploid nuclei fuse Explain how phospholipids form a cell surface membrane -Hydrophilic parts associate with water -Hydrophobic parts repel water -a bilayer forms with hydrophobic parts pointing in towards the centre of the bilayer Describe the role of the CFTR protein in e...