Repolarisation Studienführer, Klassennotizen & Zusammenfassungen
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AQA biology a-level paper 2 Practice Exam 2024.
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describe and explain the steps in the light dependent reaction of photosynthesis - correct answer 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 lost from the electron and is released as ATP. 
4. the lo...
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HUBS 191 PROGRESS TEST II | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+
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1 
HUBS 191 PROGRESS TEST II | 
QUESTIONS & ANSWERS (VERIFIED) | 
LATEST UPDATE | GRADED A+ 
Nervous system cells 
Correct Answer: neurons and glia 
Neuron input zone 
Correct Answer: dendrites and cell body 
Neuron summation zone 
Correct Answer: axon hillock 
Neuron conduction zone 
Correct Answer: axon 
Neuron output zone 
2 
Correct Answer: axon terminals 
Axon hillock 
Correct Answer: decides whether to pass on information 
Tract 
Correct Answer: axon bundles in CNS 
Grey matter 
Correct ...
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A+ Graded Exam For Aqa A Level Biology Paper 2 2023
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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...
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BTEC Exam Questions with Correct Answers Unit 1 {Biology}
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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...
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BTEC Applied Science Unit 1 Chemistry Exam 271 Questions with Answers,100% CORRECT
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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...
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BTEC APPLIED SCIENCE: UNIT 11 - Learning Aim D
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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...
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HUBS 191 NERVOUS SYSTEMEXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+
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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 
...
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HUBS 191 NERVOUS SYSTEM EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+
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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...
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AQA biology a-level paper 2
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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...
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The Heart - Physiology MCQ ACEM. Top Exam Questions & Answers, Graded A+
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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 ...