During the depolarisation - Study guides, Class notes & Summaries

1 HUBS 191 NERVOUS SYSTEM EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Resting membrane potential Correct Answer: -70mV Open Correct Answer: Voltage gated ion channels are ? at -60mV Inactive Correct Answer: Voltage gated ion channels are ? at+30mV Na+ Correct Answer: Extracellular fluid as a high ? concentration and is therefore positive in comparison to the ICF K+ Correct Answer: Intercellular fluid has a high ? concentration and is therefore slightly ne...

BTEC Applied Science Unit 9B: Homeostatic control of body systems. Homeostasis- The constant maintenance of a constant internal environment within an organism. One’s body needs to sustain its internal condition at certain levels to function. Homeostasis is called the preservation of internal conditions such as pH, temperature, and salt concentration in a stable equilibrium. Homeostasis is also known as a process of self-regulation by which an organism seeks to preserve equilibrium when ada...

CMB1004 Excitable Cells Exam Questions and Answers What are the four regions of a neurone? - Answer-Dendrites Cell Body Axon Axon Terminal Define an excitable cell - Answer-Any cell capable of generating an action potential Describe how the resting potential is maintained - Answer-Cell contains slight -ve charge (70mv) Maintained via high permeability of membrane to K+ and active transport of Na+ across membrane Define an action potential - Answer-A rapid change in membrane potential W...

Chapter 03 Testbank Student: ___________________________________________________________________________ 1. In biological systems, energy can be stored as A. potential energy. B. kinetic energy. C. heat. D. mechanical energy. E. All of the answers are correct. 2. According to the first and second laws of thermodynamics A. energy flows spontaneously from systems with high free energy to systems with low free energy in a series of step-by-step transformations. B...

BHCS1002 2023 Exam Questions with All Correct Answers Which structures prevent individual cardiomyocytes from pulling apart during contraction? - ANSWER desmosomes where does the cardiac conduction sequence start? - ANSWER sino-atrial node which wave of the ECG represents atrial depolarisation? - ANSWER P which is not part of the cardiac cycle? - ANSWER one complete inhalation and exhalation of breath which is not part of the mechanical events in the cardiac...

1. Alleles that are neither dominant nor recessive to one another, so both alleles are always expressed in the phenotype. Codominant 2. The inheritance of a single gene Monohybrid inheri- tance 3. Physical, behavioural, biochemical expression of an organisms genotype Phenotype 4. The type of genes an individual has Genotype 5. Alles that is always expressed in the phenotype Dominant 6. Only expressed in the phenotype when homozy- gous Recessive 7. both alleles are...

Level based on response marking instructions Level based on response mark schemes are broken down into levels, each based on which has a descriptor. The descriptor for the level shows the average performance for the level. There are marks within each level. Before you apply the mark scheme to a student’s answer read through the answer and annotate it (asinstructed) to show the qualities that are being looked for. You can then apply the mark scheme. Step 1 Determine a level Start at the l...

BTEC Applied Science Unit 9B: Homeostatic control of body systems. Homeostasis- The constant maintenance of a constant internal environment within an organism. One’s body needs to sustain its internal condition at certain levels to function. Homeostasis is called the preservation of internal conditions such as pH, temperature, and salt concentration in a stable equilibrium. Homeostasis is also known as a process of self-regulation by which an organism seeks to preserve equilibrium when ada...

BTEC Applied Science Unit 5 Exam 105 Questions with Answers Function of the Right Pulmonary Artery - CORRECT ANSWER Carried deoxygenated blood to the right lung Function of the Aorta - CORRECT ANSWER Carries oxygenated blood from the left ventricle to the rest of the body Function of the Left Pulmonary Artery - CORRECT ANSWER Carries deoxygenated blood to the left lung Function of the Left Pulmonary Vein - CORRECT ANSWER Carries oxygenated blood to heart from left lung Function ...

BTEC Applied Science Unit 9B: Homeostatic control of body systems. Homeostasis calls for a high degree of monitoring and control; to detect internal and external changes and respond stimuli, hormones and nervous system communicate to bring about changes that brings symptoms back to the correct level. How is does hormones and nervous system helps homeostatic? The endocrine and nervous system are crucial for homeostasis. Endocrine transmits information through hormones which travels through t...