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B2 1 Cells, tissues & organs
Dr Barker 2011
Across
4. Tissue made up of relatively unspecialised cells which line the tubes and organs of the body.
7. Breaking down food without oxygen to release energy for the cells.
10. A group of specialised cells all carrying out the same function.
12. The tissue which makes up the glands and secretes chemicals, e.g. enzymes, hormones.
13. The reaction in which the enzymes in yeast turn glucose into ethanol and carbon dioxide.
16. An instrument used to magnify specimens using lenses and light.
18. The site of protein synthesis in a cell.
22. An instrument used to magnify specimens using a beam of electrons.
23. Extra circle of DNA found in bacterial cytoplasm.
26. The living transport tissue in plants which carries sugars around the plant.
28. Molecules which will not dissolve in a particular solvent such as water.
29. The site of aerobic respiration in a cell.
31. An organelle found in many living cells containing the genetic information.
32. A group of organs working together to carry out a particular function.
34. The organelle in which photosynthesis takes places.
35. Specialised for a particular purpose.
36. Gland in the mouth which produces saliva containing the enzymes amylase.
37. The mixture of enzymes and other chemicals produced by the digestive system.
40. The tissue of the epidermis – the outer layer of an organism.
41. A form of asexual reproduction where a complete new individual forms as a bud on the parent organism, e.g.
yeast, hydra.
45. The building blocks of protein.
46. The tissue in a green plant where photosynthesis takes place.
Down
1. A space in the cytoplasm filled with cell sap which is there all the time.
2. The overall movement of a substance.
3. An organism which made up of many different cells which work together. Some of the cells are specialised for
different functions in the organism.
5. A big carbohydrate molecule which makes up plant and algal cell walls.
6. The water-based gel in which the organelles of all living cells are suspended.
8. A rigid structure which surrounds the cells of living organisms apart from animals.
9. A population of billions of bacteria grown in culture.
11. The net movement of particles of a gas or a solute from an area of high concentration to an area of low
concentration (along a concentration gradient).
14. The process by which proteins are made on the ribosomes based on information from the genes in the nucleus.
15. The organ system running from the mouth to the anus where food is digested.
17. The green pigment contained in the chloroplasts.
19. Chemical found in alcoholic drinks and biofuels such as gasohol, its chemical formula: C 2H5OH.
20. The membrane around the contents of a cell which controls what moves in and out of the cell.
21. Adapted for a particular function.
24. The gradient between an area where a substance if at high concentration and an area where it is at a low
concentration.
25. The DNA which carries the instructions for making a new cell or a new individual.
27. Breaking down food using oxygen to release energy for the cells.
30. A group of different tissues working together to carry out a particular function.
33. The nerve carrying impulse from the retina of the eye to the brain.
38. The non-living transport tissue in plants, which transports water and minerals around the plant.
39. The region of the digestive system where most of the digestion of food takes place.
42. The cells of algae, single-celled or simple multicellular organisms, which can photosynthesise but are not plants.
43. The tissue which makes up the muscles. It can contract and relax.
44. A structure in the kidney where substances are reabsorbed back into the blood.
Dr Barker 2011