Cells B2 1.1 0.0 / 5 ? BiologyCells, tissues and organsGCSEAQA Created by: BasitalCreated on: 11-02-17 19:08 Nucleus Contains genetic material that controls the activities of the cell. 1 of 30 Cystoplasm A liquid gel in which most of the chemical reactions needed for life take place. 2 of 30 Cell Membrane Holds the cell together and controls the passage of substances in and out of the cell. 3 of 30 Mitochondria Structures in the cytoplasm where most of the reactions for respiration take place. Respiration releases energy that the cell needs to work. 4 of 30 Ribosomes Where protein synthesis take place. All the proteins needed in the cell are made here. 5 of 30 Cell Wall Made of cellulose that strengthens and supports the cell. 6 of 30 Chloroplasts Found in all green parts of a plant. They are green because they contain the green substance chlorophyll. 7 of 30 Chlorophyll Absorbs light energy to make food by photosynthesis. 8 of 30 Permanent vacuole A space in the cytoplasm filled with cell sap. This helps to keep the cells rigid to support the plant. 9 of 30 What features do most animal cells contain? Nucleus, Cytoplasm, Cell membrane, Mitochondria, Ribosomes. 10 of 30 What features do most plant cells contain? Nucleus, Cytoplasm, Cell membrane, Mitochondria, Ribosomes, cell wall, permanent vacuole, Chloroplasts [Chlorophyll]. 11 of 30 What are some single celled organisms? Yeast + Bacteria 12 of 30 Most bacteria are less than what in length? 1 μm 13 of 30 Define Bacterial colony A population of billions of bacteria grown in culture. 14 of 30 What features do most bacteria contain? Genetic material, cytoplasm, cell membrane, slime capsule, cell wall, plasmids, flagella 15 of 30 Where is the genetic material found? Not in a nucleus, but in long strands in the cytoplasm. 16 of 30 What do plasmids carry? Extra DNA. 17 of 30 What a flagella? A long strand of protein that lashes about. 18 of 30 What is the purpose of the flagella? To allow the bacteria to move. 19 of 30 Some bacteria is useful, what are some examples of this? To make yogurt & cheese. Used in sewage and to make medicines. 20 of 30 What features does yeast contain? A nucleus, cytoplasm, cell membrane, cell wall 21 of 30 What size are most yeast cells? 3-4 μm 22 of 30 How does yeast reproduce? asexual budding 23 of 30 Define asexual budding When a new yeast cell grow out from the original one to form a separate organism. 24 of 30 What can yeast cell survive with little of for a long time? oxygen 25 of 30 Bu when they have lots of oxygen what do they do? aerobic respiration 26 of 30 What are the waste products of aerobic respiration. water + carbon dioxide 27 of 30 When they have little oxygen what do they do? anaerobic respiration. 28 of 30 What is the by products of this? ethanol & carbon dioxide 29 of 30 What can yeast be used for? Making bread & alcohol 30 of 30
Comments
No comments have yet been made