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Cell structure

paigexmonks Biology Englisch 49 Karten

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  1. 1what has eukaryotic cells?plants, animals, fungi, protoctists
  2. 2what has prokaryotic cells?bacteria, cyanobacteria
  3. 3what is the difference between unicellular and multicellular?unicellular-organisms consist of one cell
    multicellular-organisms consist of many different cells
  4. 4what is the word that states that multicellular organisms cells all have different functions?specialised
  5. 5what does a eukaryotic cell contain?nucleus, chloroplast, mitochondrion, R/SER, goligi body, ribosomes, lysosomes, centrioles and vacuole
  6. 6what does a nucleus contain?outer membrane, inner membrane, pore in nuclear envelope, nucleoplasm, chromatin, nucleolus and dna as chromosomes
  7. 7functions of the nucleus?- nuclear envelope controls entry and exit of maerials
    - control centre of cell through mRNA production
    -retains genetic material
    -manufacture RNA and ribosomes
  8. 8what does the mitochondrion contain?outer membrane, inner membrane, folds of cristae and matrix
  9. 9what is the function of the mitochondrion?site for aerobic respiration through ATP synthesis
  10. 10what does the endoplasmic reticulum contain?nucleus with nuclear envelope, cisternae with ribosomes on rough endoplasmic reticulum but none on smooth endoplasmic reticulum
  11. 11what is the role of the smooth er?lipid synthesis and transport
  12. 12what is the function of rough er?protein synthesis and transport
  13. 13what is the structure of Golgi body?folds called cisternae like sacs, vesicle from ER enter which contain proteins, lysosomes exit with enzymes inside
  14. 14what is the function of Golgi body?modifying and labelling eg adds carbs to proteins to produce glycoproteins
    produce enzymes
    transport, modify store lipids
    form lysosomes
  15. 15what is the structure of ribosomes?made up of protein and rRNA. 1 large and 1 small sub unit
  16. 16what is the function of ribosomes?protein synthesis
  17. 17what is the structure of lysosomes?just little circles
  18. 18what is the function of lysosomes?contain digestive enzymes responsible for destroying worn out organelles and digesting the contents of vacuoles fromed by phagocytosis
  19. 19what is the structure of centrioles?spindle shaped short cylinders made of 9 fibres
  20. 20what is the function of centrioles?make protein fibres to aid cell dividsion by helping to move chromosomes
  21. 21what is the structure of a chloroplast?outer membrane, inner membrane, stoma, itergranal lamellae, thylakoids, many making up a granum
  22. 22what is the function of chloroplasts?found in plants, site of photosynthesis
  23. 23what is the strcuure of a vacuole?cell wall, cell membrane, tonoplast, vacuole
  24. 24what is the function of vacuole?storage site for materials such as cell sap and helps support young plants
  25. 25chloroplast - p or a?plants
  26. 26cell wall p or a?plants
  27. 27vacuole p or a?single large in plant, many small in animal
  28. 28centrioles p or a?animals
  29. 29plasmodemata p or a?plants
  30. 30what is a plasmodesmata?channels that connect the cytoplasm of adjacent cells by connecting strands
  31. 31when our cells become specialosed is known as...differentation
  32. 321 example of specialised cell and functionred blood cells carry oxygen in the blood
  33. 332nd example of specialied cell and fucntionwhite blood cells to fight off infection
  34. 343rd example of specialised cella dn functionskin cells act as barrier
  35. 35what is a tissue?a group of similar cells performing one particular function
  36. 36what is lots of different types of tissue make up?an organ
  37. 37what does lots of organs working together make?and organ system
  38. 38what do prokaryotic cells not have?membrane bound organelles or a membrane bound nucleus
  39. 39what is the dna like on prokaryotic cells?single stranded not held in the nucleus
  40. 40what does a prokaryotic cell contain?mesosomes, cell wall, cell membrane, cytoplasm, plasmid, dna strand, slime capsule, ribosomes, starch grains and flagellum
  41. 41difference between eukaryotic ribosomes and prokaryotic ribosomeseukaryotic has large - 80s
    prokaryotic has small - 70s
  42. 42difference in dna in eukaryotic and prokaryoticeukaryotic - held in the nucleus and is double stranded
    prokaryotic - not held in nucleus and is single stranded
  43. 43difference in cell wall in eukaryotic cells and prokaryotic cellseukaryotic - cell wall made of murein
    prokaryotic - cell wall made of cellulose (plants)
  44. 44what is used to see viruses?electronmicroscope
  45. 45why are viruses called non-cells?no cytoplasm , no organelles and no chromosomes
  46. 46what do viruses consist of?DNA sheath, capsid tails and nucleic acid
  47. 47where do viruses multiply?host cells
  48. 48why is inner membrane (cristae) in mitochondria folded?to increase SA for the proteins involved in the genereation of ATP to maximise respiration
  49. 49why does muscle cells require more mitochondria than skin cells?they require more energy to contract than skin cells

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Biology Karteikarten am Cell structure, erstellt von paigexmonks am 19/05/2013.
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