Specialised cells - Study guides, Revision notes & Summaries

AQA AS BIOLOGY 7401/1 Paper 1 Question Paper & Mark scheme June 2023 VERIFIED 100% What are the advantages of multi-cellular organisms? - --able to move -able to hunt(likely to he in top if food chain) -able to adapt to environment -specialised body reigons -able to find a mate What are the disadvantages of multi-cellular organisms? - -As they get bigger diffusion is less efficient and specialised exchange surfaces are needed Single felled organisms have a __________ surface area to volum...

What are eukaryotic cells? - correct answer Cells that are more complex and have a nucleus (animal and plant cells) What are prokaryotic cells? - correct answer Cells that are smaller and simpler, and don't have a nucleus but still have genetic information (bacteria) What are eukaryotes? - correct answer Organisms made of eukaryotic cells What is a prokaryote? - correct answer A prokaryotic cell (it's a single celled organism) What is cytoplasm? - correct answer A liquid gel in whi...

AQA GCSE Biology - Paper 1 Exam Questions and Answers What does a nucleus do? - Answer️️ -It contains genetic material and controls the activities of the cell What does cytoplasm do? - Answer️️ -It's a gel-like substance where most of the chemical reactions happen. It contains enzymes that control these chemical reactions What does a cell membrane do? - Answer️️ -It holds the cell together and controls what goes in and out What do mitochondria do? - Answer️️ -These are w...

2023 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/2F Foundation Tier Paper 2 Life and Environmental Sciences Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] GCSE COMBINED SCIENCE: SYNERGY F Foundation Tier Paper 2 Life and Environmental Sciences Thursday 25 May 2023 Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: a ruler a protractor a scientific calculator the periodic table (enclosed) the Physics Equations Sheet (enclosed). Instructions Us...

What are the two main types of cell - correct answer Prokaryotic Eukaryotic Which cells are prokaryotic - correct answer Bacteria What cells are eukaryotic - correct answer Plant animal and fungal What are the differences between the two types of cells - correct answer Prokaryotic cells are smaller i...

GCSE COMBINED SCIENCE: SYNERGY 8465/1F Foundation Tier Paper 1 Life and Environmental Sciences Version: 1.0 Final G/LM/Jun23/E7 8465/1F (JUN2384651F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 1 Life and Environmental Sciences Tuesday 16 May 2023 Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use...

GCSE COMBINED SCIENCE: SYNERGY F Foundation Tier Paper 2 Life and Environmental Sciences Thursday 25 May 2023Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: a ruler a protractor a scientific calculator the periodic table (enclosed) the Physics Equations Sheet (enclosed). Instructions Use black ink or black ball-point pen. Pencil should only be used for drawing. Fill in the boxes at the top of this page. Answer all questions in the spaces provided. D...

Locomotion and movement – NEET Exam Questions With Verified Answers What is locomotion? - answerany movement that results in change in location or place In paramoecium cilia helps in - answer- the movement of food through cytopharynx - locomotion Hydra uses its tentacles for - answer- capturing its prey - locomotion All locomotions are movement but all movements are not locomotions. - answer Locomo is needed for - answer- search of food - shelter - mate - suitable breeding grounds ...

AQA GCSE Biology Paper 1 topics 1-4 Exam Questions and Answers 100% Correct Name the main organelles in an animal cell: - Answer️️ -> nucleus > cytoplasm > cell membrane > ribosomes > mitochondria What organelles does a plant cell have but animal cell doesn't? - Answer️️ -> chloroplast > cell wall > vacuole What organelles does a Bacteria cell have? - Answer️️ -> no nucleus > circular strand of DNA > rings of plasmid > cell wall &gt...

AQA A-LEVEL BIOLOGY TOPIC 3 UPGRADED EXAM QUESTIONS AND ANSWERS Why are Microorganisms able to perform exchange via their surface? - CORRECT ANSWER -• have a large surface area to volume ratio • have a short diffusion distance • have low demand How do Microorganisms Obtain Nutrients & Remove Waste? - CORRECT ANSWER -• by exchange via their surface • nutrients (e.g. glucose, oxygen) move in by diffusion via their surface • waste (e.g. carbon dioxide) move out by diffus...