3 types of neurones - Study guides, Class notes & Summaries

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...

AQA BIOLOGY ESSAY TITLES VERSION 2 Biology essay titles Version 2 This document contains the essay titles and mark schemes used in AQA A-level Biology examinations since 2007. The specifications these exam questions came from are no longer in use, but the marking method has largely remained unchanged. Further guidance on the marking method used with the essay can be found in Paper 3 Essay marking guidance. Year Questio nTitle 7402/3 2017 7.1 The impo...

Summary Exam for Biological foundations of mental health 2023 Striatal Dopamine neurotransmission abnormalities in obesity and addiction - CORRECT ANSWER-Such persistent activation of the reward pathway occurs in the case of chronic drug abusers or even in individuals consuming unusually large quantity of food. To answer this question, scientists have quantified dopamine neurotransmission in the brains of addicted or obese individuals, using positron emission tomography-- PET. They...

Control and Coordination Final Exam Past selection to reappear in the coming examination What process does our body use to regulate the internal condition in the body - Answer-Homeostasis Why is it important to make sure your body is kept at the right conditions even when the external enviroment changes? - Answer-because your cells need the right conditions in order to function properly, including the right conditions for enzyme reaction What are the two body systems resposible for ...

1. AQA GCSE Biology: Cell Biology Questions and Answers 2023 Eukaryotic cells Plant and animal cells What characterises eukaryotic cells? (3) Cell membrane, cytoplasm and genetic material enclosed in a nucleus Prokaryotic cells Bacterial cells What characterises prokaryotic cells? (4) 1. much smaller in comparison 2. have a cytoplasm and cell membrane surrounded by cell wall 3. genetic material is a single DNA loop not enclosed in a nucleus 4. may be 1 or more small ...

APPLIED SCIENCE HUMAN BIOLOGY THE NERVE IMPULSE EXAM WITH CORRECT ANSWERS 2024

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...

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...

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 ...

BIOL 235: Chapter 14, questions and answers, 100% correct subarachnoid space the space between the arachnoid mater and the pia mater that contains CSF ventricle CSF-filled cavity within the brain. There are four lateral ventricles (2) CSF-filled cavities; one in each hemisphere of the cerebrum Third ventricle narrow slit-like CSF-filled cavity along the midline superior to the hypothalamus and between the right and left halves of the thalamus Fourth ventricle CSF...