Aqa biology a2 - Study guides, Class notes & Summaries

Full lesson and revision notes on AQA A2 Biology - the human body. Looking at synapses, muscles, the neuromuscular junction, kidneys and homeostasis

Full lesson and revision notes on AQA A2 Biology: Genetics

Full lesson and revision notes on AQA A2 Biology: Energy transfers in and between organisms

Respiration exam questions AQA A2 BIOLOGY 2023 Describe how acetylcoenzyme A is formed in the link reaction. (2) - ANSWER-1. Oxidation of / hydrogen removed from pyruvate and carbon dioxide released; 2. Addition of coenzyme A. In the Krebs cycle, acetylcoenzyme A combines with four-carbon oxaloacetate to form six-carbon citrate This reaction is catalysed by the enzyme citrate synthase. (i) Oxaloacetate is the first substrate to bind with the enzyme citrate synthase. This induces...

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...

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...

Full lesson and revision notes on the population topic in AQA A2 Biology.

A2 AQA Biology

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.

Pest - correct answer An organism that competes with humans for food or space or is a danger to health. Pesticides - correct answer Are poisonous chemicals that kills pests. Features of an effective pesticide - correct answer -Specific -Biodegradable -Cost-effective -Not accumulate Specific - correct answer The pesticide is only toxic to on organism, which it is directed towards. Harmless to humans and any other organisms. Biodegradable - correct answer The pesticide once appl...