Gcse Aqa Foundation Biology |61 Questions| With Correct Answers.

How to root hair cells absorb water? {Ans: By osmosis, which is easy as the root hair creates a large surface area}Function of course focus {Ans: This quickly moves the stage up and down to focus on the sample.}How are bacteria cells specialised? {Ans: Most structures are general. The flagella helps it move around. -Cytoplasm contains enzymes for chemical reactions e.g respiration}How are yeast cells specialised? {Ans: cytoplasm-site of anaerobic respiration. NP vaccuole-keeps the cell hydrated during fermentation.}How does Osmosis occur in plants? {Ans: Water moves into plant cells by osmosis, making them turgid or stiff so that they are able to hold the plant upright.}prokaryotic {Ans: unicellular organisms that do not have a nucleus e.g bacteria cell}function of the objective lens {Ans: usually there are 3 to choose from. The smallest will be the easiest to focus, so select this first. when you have focused this lens try a different one with a greater magnification}Diffusion {Ans: Molecules move from an area of high concentration to an area low concentration. It is a passive process, meaning no energy is required.}Equilibrium in diffusion {Ans: When the particles are evenly spread out during