Photolysis Study guides, Revision notes & Summaries

Describe the events of fertilisation that occur after the acrosome reaction. -Membrane of sperm and egg cell fuse together -cortical granules release contents into zona pellucida -Zona pellucida thickens -Haploid nuclei fuse Explain how phospholipids form a cell surface membrane -Hydrophilic parts associate with water -Hydrophobic parts repel water -a bilayer forms with hydrophobic parts pointing in towards the centre of the bilayer Describe the role of the CFTR protein in e...

AQA A Level Biology - Photosynthesis Questions And Answers What are the two stages of photosynthesis called> The Light Dependent reaction The Light Independent reaction (The calvin cycle) What is the purpose of photosynthesis? To energy from light is used to make glucose What is the general equation for photosynthesis ? 6H2O + 6CO2 + energy --> C6H12O6 + 6O2 What are the x stages of the light dependent reaction ? 1. Photoionisation of PSII 2. Photolysis of water 3. Photoionisa...

BIOL 3332 Micro Biology Exam Combined. Complete With Answers.Your answer is CORRECT. Organotrophy is a term describing microorganisms that: A) use preformed organic compounds as a source of electrons and obtain energy through fermentations or organic respiration B) obtain electrons and H+ via photolysis of H2O or H2S, producing O2 or S2, respectively C) perform photolysis of small organic molecules D) all of the above E) none of th e above Your answer is CORRECT. Which of the following...

Geostationary Satellites (Goes) Stationary with respect to a fixed point on Earth's surface (revolves at the same rate as Earth) -Far from earth (36,000 km) = coarse spatial resolution, but good temporal sampling. Visible satellite appears black where the sun is not hitting earth. See lots of black Infrared satellite shows a picture of the whole earth- also shows white around the whole earth. reads the surrounding temp of earth, so the universe is cold, shoing white. ...

describe and explain the steps in the light dependent reaction of photosynthesis - 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 loss of electr...

Which of the following can be considered the first assurance that an herbicide application will not result in unwanted impacts to human health or the environment - pesticide registration Which is the result of hydrolysis and photolysis - breakdown How is risk determined in testing pesticides for registration? - the product of hazard and exposure what is the first and most important barrier to the absorption of an herbicide on a leaf surface? - the cuticle What is the most important soil c...

CLEP Biology What is the key limiting factor on cell size? - The size of a cell is limited by the ratio of its surface area to volume. A cell will only remain stable if... - ...the surface area of the plasma membrane maintains a balance with the volume of the cytoplasm. The salivary gland... - ...secretes saliva which enters the digestive tract and aids the digestive process. Gregor Medel - Studied the relationships between traits expressed in parents and offspring and the genes that...

Glucose C6H12O6 - a single sugar which is produced in photosynthesis. ATP An activated nucleotide found in all living organisms, which is produced during respiration and acts as an energy carrier. ATP is produced during the light-dependent reaction of photosynthesis. metabolism the chemical processes that occur within a living organism in order to maintain life. Photosynthesis A complex metabolic pathway involving many intermediate reactions. Some energy in light is conserved in the for...

AQA A LEVEL BIOLOGY PAPER 2(questions and answers)2023 air spaces between them = rapid diffusion, long and narrow and are packed with chloroplast the thin tissue of the leaf allows light to reach mesophyll - CORRECT ANSWER-Name three advantages of mesophyll in the leaf stroma in the fluid filled matrix - CORRECT ANSWER-where does the LIR occur? 100 stacked discs of thylakoids - CORRECT ANSWER-what is the grana? chlorophyll absorbs light energy, excite electrons, move along carriers etc...

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...