AQA GCSE Biology: Cell Biology Exam Questions and Answers 100% Pass

AQA GCSE Biology: Cell Biology Exam Questions and Answers 100% Pass Eukaryotic cells - Answer️️ -Plant and animal cells What characterises eukaryotic cells? (3) - Answer️️ -Cell membrane, cytoplasm and genetic material enclosed in a nucleus Prokaryotic cells - Answer️️ -Bacterial cells What characterises prokaryotic cells? (4) - Answer️️ -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 rings of DNA called plasmids Millimetre - Answer️️ -mm, thousandth of a metre, 10^-3m Micrometre - Answer️️ -μm, millionth of a metre, 10^-6m Nanometre - Answer️️ -nm, billionth of a metre, 10^-9m Nucleus - Answer️️ -Contains genetic information and controls cell's activities Cell membrane - Answer️️ -Controls the passage of substances in and out of the cell e.g. glucose and ions Cytoplasm - Answer️️ -Where most chemical reactions take place Ribosomes - Answer️️ -Where protein synthesis takes place Mitochondria - Answer️️ -Where aerobic respiration takes place Chloroplasts - Answer️️ -Where photosynthesis occurs because contain chlorophyll (in plant cells) Plasmids - Answer️️ -Small rings of DNA which code for very specific features such as antibiotic resistance (in bacterial cells) Most animal cells have... (5) - Answer️️ -1. Nucleus 2. Cytoplasm 3. Cell membrane 4. Mitochondria 5. Ribosomes In addition to the parts found in animal cells, plant cells often have... - Answer️️ -1. Chloroplasts 2. Permanent vacuole filled with cell sap Plant and algal cells also have... - Answer️️ -...a cell wall made of cellulose which strengthens the cell Equipment for microscopy practical (6) - Answer️️ -1. Microscope 2. Onion 3. Scalpel 4. Forceps 5. Slide and cover slip 6. Iodine What must you remember when you are drawing cells from a