3.6 Prokaryotic cells and viruses 0.0 / 5 ? BiologyCellular processes and structureASAQA Created by: scarletto_266Created on: 01-10-20 09:57 Which type of cell has a distinct nucleus? Eukaryotic 1 of 17 Which type of cell has stranded circular DNA? Prokaryotic 2 of 17 Which type of cell can have chloroplasts? Eukaryotic 3 of 17 What do prokaryotic cells have instead? Bacterial chlorophyll 4 of 17 Which type of cell has 70S ribosomes? Prokaryotic 5 of 17 What type of cell has a cell wall made of murien? Prokaryotic 6 of 17 What is murien? A polymer made up of polysaccharides and peptides 7 of 17 What type of cell does not have a capsule? Eukaryotic 8 of 17 What is the function of the cell wall? A physical barrier that excludes certain substances and protects against mechanical damage and osmotic lysis 9 of 17 What is the function of the capsule? Protects bacterium from other cells and helps groups of bacteria stick together for further protection 10 of 17 What is the function of the cell surface membrane? Acts as a differentially permeable layer, which controls the entry and exit of chemicals 11 of 17 What it the function of the circular DNA? Possesses the genetic information for the replication of bacterial cells 12 of 17 What is the function of a plasmid? Possesses genes that may aid the survival of bacteria in adverse conditions, e.g. produce enzymes that break down antibiotics. 13 of 17 What is the average size of a virus? 20-300 nm 14 of 17 What is contained inside a virus? Nucleic acids, DNA or RNA as genetic material 15 of 17 What is the condition needed for a virus to reproduce? Needs to be inside a host cell 16 of 17 What is the purpose of attachment proteins? TO allow the virus to identify and attach to a host cell 17 of 17
Cells AQA AS Biology PART 2 of 6 TOPICS: Structure of prokaryotic cells and viruses 5.0 / 5 based on 1 rating Teacher recommended
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