During the depolarisation - Study guides, Class notes & Summaries

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...

Which factor influences most to elevate plasma calcium level? A. Calcitonin B. Calcitriol C. Calmodulin D. Catecholamine E. Cobalamine - Answer- B Vitamin A is often used as a collective term for several compounds. In that, aldehyde form A. Can be enzymically formed from retinoic acid. B. Is transported from the intestine to the liver with transcobalamin II C. Is the light-absorbing portion of rhodopsin. D. Is phosphorylated and dephosphorylated during the visual cycle. E. Esterif...

TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD OWNER: EMILLYCHARLOTTE COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED FIRST PUBLISHED: SEPTEMBER 2024 Page 2 of 17 The electroencephalogram (EEG) and event-related potentials (ERPs) both involve recording the electrical activity of the brain. Outline one difference between the EEG and ERPs - Answer️️ -EEG is a recording of general brain activity usually linked to states such as sleep and arousal, whilst ERPs are eli...

PHSL232 Exam Questions And Answers 100% Pass Lecture 1) What are the three functions of the cardiovascular system - answer1) To supply organs with an adequate amount of oxygen and nutrients 2) Removal of unwanted metabolic by-products (CO2 and H+) 3) Transport of substances +Heat (Diffusion alone is not enough) Where does diffusion and bulk flow occur in the body - answer-Diffusion in lungs and tissues -Bulk flow over long distances What is myocardium - answerCardiac muscle cells What h...

BTEC Applied Science Unit 1 Biology Exam 118 Questions with Answers Describe the function of the nucleolus - CORRECT ANSWER Produces ribosomes and RNA Describe the function of the cell wall - CORRECT ANSWER Provides rigidity and protection to the cell Describe the function of the chloroplasts - CORRECT ANSWER Site of photosynthesis as they contain chlorophyll Describe the function of the plasmodesmata - CORRECT ANSWER A channel through the cell wall the allows transport of materials ...

Suggest the advantages of the change in blood flow in blood vessels during exercise. [3 marks] - answer--more blood flow to muscles during exercise -supplying more glucose and oxygen/ removing carbon dioxide/ lactic acid/ heat -for high rate of respiration/ to meet increased demand for energy Explain how microorganisms contributed to the increase in temperature during processing of organic waste. [2 marks] - answer-respiration produces heat explain the advantage of showing the data using...

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 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...

Biopsychology Exam Questions With Correct Answers Briefly outline how excitation and inhibition are involved in synaptic transmission (4) - answer• Neurotransmitters can be excitatory or inhibitory (most can be both but GABA is purely inhibitory). • If the neurotransmitter is excitatory then the post synaptic neuron is more likely to fire an impulse. • If the neurotransmitter is inhibitory then the post synaptic neuron is less likely to fire an impulse. • The excitatory and inhi...