Sodium-potassium pump A pump in the cell membrane responsible for maintaining relatively high concentrations of potassium ions but low concentrations of sodium ions inside the cell. Enzymes are responsible for digestion of food.
We can produce heat from respiration. Decomposition Reactions The only example of a decomposition reaction I showed was that of potassium chlorate decomposing when heated.
The neurotransmitter is secreted from the synaptic knob of the first neurone and diffuses across the junction, where it stimulates a new impulse in the second neurone, before quickly being destroyed by enzymes. Microbes, Food and Disease Microbes reproduce quickly when they have sufficient food, water, and the right temperature and pH.
Number of drops of HCl What is your dependent variable? The cell collapses and the plant wilts. Linkage The increased tendency of two alleles to segregate together because their loci are on the same chromosome.
The dark turquoise-green solid copper II carbonate dissolves in hydrochloric acid to form a greeny-blue solution of copper II chloride and effervescence from the carbon dioxide formed. On adding a solid carbonate or hydrogencarbonate to an acid you see effervescence from carbon dioxide gas and the general word equation is Thus, blood is returned to the heart to gain high enough pressure to get through the capillaries of the body.
Read the pH of the solution off the colour guide and record it in your results table. Place a small quantity the size of a match head of the magnesium oxide in a test tube.
The top surface of the leaf is often covered with a water-impermeable, waxy layer. Were you able to confirm or reject your hypotheses? How many C on the left and right? The first part of the small intestine is called the duodenum. Chemistry is required, while Biology, Physics, and Mathematics are recommended.
How many C on the left and right?
Osmosis is a special kind of diffusion, involving the movement of water from a dilute solution of a substance to a concentrated solution across a partially permeable membrane, which only allows water molecules to pass through but not the dissolved substance.
Will it be possible to neutralise all the sodium hydroxide by adding hydrochloric acid? Active transport is used to move substances from a low to a high concentration. Passive immunity is when antibodies are injected into a person or provided from mother to baby.
They are very thin one cell thick and are responsible for delivering nutrients to and removing wastes from all tissues in the body.
This covered the foundations of cellular chemistry: When sodium hydroxide is dissolved in water, will the resulting solution be acidic, basic or neutral? What is the Arrhenius definition of a base?recognise that each type of chemical reaction has its own general word equation ; Explain that the purpose of the lesson is to check their ability to write word equations.
Give each student the sheets Word equations 1 and Information to try. Oct 21, · To recall general word equations for neutralisation To write word equations for neutralisation To write symbol equations for neutralisation equations (A*) Video As.
A word equation should state the reactants (starting materials), products (ending materials), and direction of the reaction in a form that could be used to write a chemical equation. There are some key words to watch for when reading or writing a word equation.
May 19, · Write a general word equation for a neutralization kitaharayukio-arioso.com: Resolved. TOPICS for OCR GCSE Gateway Science GCSE CHEMISTRY A FT Paper 1/HT Paper 3 Topic C1: Particles.
Chemistry key ideas for all topics (for OCR GCSE Gateway separate science GCSE CHEMISTRY). Chemistry is the science of the composition, structure, properties and reactions of matter, understood in terms of.
Aug 20, · This chemistry video tutorial explains how to predict the products of acid base neutralization reactions. It explains how to balance the chemical equation, write .Download