Repolarisation Study guides, Class notes & Summaries

BTEC Exam Questions with Correct Answers Unit 1 {Biology} Describe the function of the nucleolus Produces ribosomes and RNA Describe the function of the cell wall Provides rigidity and protection to the cell Describe the function of the chloroplasts Site of photosynthesis as they contain chlorophyll Describe the function of the plasmodesmata A channel through the cell wall the allows transport of materials from one cell to another Describe the function of the amy...

A+ Graded Exam For Aqa A Level Biology Paper 2 2023 3.6.4 Homeostasis - CORRECT ANSWERWhat is negative feedback? - CORRECT ANSWER-A response that returns a change in levels, back to normal. What is positive feedback? - CORRECT ANSWER-A response that amplifies a change from the normal level. Which factors influence blood glucose concentration? - CORRECT ANSWER-Eating food containing carbohydrates, glucose absorbed from intestine to blood. Exercising, more glucose is used in respirat...

BTEC Applied Science Unit 1 Chemistry Exam 271 Questions with Answers How many electrons can an s subshell hold? - CORRECT ANSWER 2 How many electrons can a p subshell hold? - CORRECT ANSWER 6 How many electrons can a d subshell hold? - CORRECT ANSWER 10 Which subshells are available in the first energy level? - CORRECT ANSWER s Which subshells are available in the second energy level? - CORRECT ANSWER s and p Which subshells are available in the third energy level? - CORRECT...

1. How many electrons can an s subshell hold? 2 2. How many electrons can a p subshell hold? 6 3. How many electrons can a d subshell hold? 10 4. Which subshells are available in the first energy level? 5. Which subshells are available in the second en- ergy level? 6. Which subshells are available in the third energy level? s s and p s, p and d 7. What is Hund's rule? (Think bus seats!) Every orbital in a sub- shell must be singly filled with an electron before any one orbital can be d...

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...

1 HUBS 191 NERVOUS SYSTEMEXAM | 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+ 2 Correct Answer: Intercellular fluid has a high ? concentration and is therefore slightly ...

AQA biology a-level paper 2 AQA biology a-level paper 2 describe and explain the steps in the light dependent reaction of photosynthesis - ANS 1. photoionisation: light reaches chlorophyll in PSII, which is absorbed by an electron, which becomes excited and moves to a higher energy level. 2. the electron passes to a carrier protein in the thylakoid membrane, and is passed down a series of carrier molecules called an electron transfer chain. 3. as the electron moves down, energy is lo...

The Heart - Physiology MCQ ACEM. Top Exam Questions & Answers, Graded A+ Which is the main risk factor for diastolic dysfunction? 1. Diabetic heart disease 2. Hypertension 3. Coronary heart disease 4. Hypertrophic cardiomyopathy 2. Hypertension Major risk factors include the following - hypertension (major) - hypertrophic cardiomyopathy - coronary heart disease - diabetic heart disease - restrictive cardiomyopathy. Which is CORRECT regarding the ECG? 1. Bipolar leads ...

LTP Exam Questions and Answers All Correct Morris water maze - Answer-the rats are placed in a circular, featureless pool of cool milky water, in which they must swim until they discover the escape platform- which is invisible just beneath the surface of the water. the rats are allowed to rest on the platform before being returned to the water for another trial. Despite the fact that the starting point is varied from trial to trial, the rats learn after only a few trials to swim directly to t...

AQA A Level Biology Revised Test : Year 2- Nervous Coordination 2023What is the value of the resting potential of a neurone? - ANSWER -70mV Why is the resting potential of a neurone negative? - ANSWER There are more positive ions outside the cell than inside How is the resting potential maintained? - ANSWER Sodium-potassium pump actively transports 3 Na+ out for ever 2 K+ into the neurone (ATP Hydrolysed) Membrane more permeable to K+ and less permeable to Na+ What happens if the ...