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Nat 5 Cells
Cell UAS revision
| Question | Answer |
|---|---|
| what cuts plasmids open in genetic engineering | enzyme |
| what is glucose converted into in glycolysis | pyruvate |
| how much ATP is produced during glycolysis | 2 |
| how much ATP is produced during aerobic respiration | 38 |
| what is pyruvate converted into in fermentation in yeast | alcohol and carbon dioxide |
| what is pyruvate converted into in aerobic respiration in any cell | carbon dioxide and water |
| what is pyruvate converted into in fermentation in muscles | lactic acid |
| what is water broken down into in light dependent stage | hydrogen and oxygen |
| what molecule absorbs light energy in plants | chlorophyll |
| what are the 3 limiting factors | temperature light intensity and carbon dioxide concentration |
| what is the definition of diffusion | movement of molecules from high to low concentration down a concentration gradient |
| what is the definition of active transport | movment of molecules from low to high concentration against a concentration gradient |
| name a difference between passive and active transport | AT - needs ATP PT - no ATP OR AT - low to high concentration PT - high to low concentration |
| name an aseptic technique | wash hands/wear a lab coat |
| name an abiotic factor controlled in fermenter | oxygen concentration /temperature/pH |
| what happens after chromosomes line up in middle of cell | chromatids pulled to opposite poles by spindle fibres |
| what happens before 2 identical diploid cells are produced | nuclear membrane reforms & cytoplasm divides |
| where does mitosis occur | nucleus |
| function of cell wall | Provides support for cell |
| function of mitochondria | site of aerobic respiration |
| what part of membrane moves molecules across a) protein b) phospholipid | protein |
| what name is given to the middle of the cell where chromosomes line up | equator |
| what structures in the cell separate chromatids | spindle fibres |
| what controls the protein's structure | order of bases/amino acids |
| if a protein's structure is altered this will alter its ...... | function (cannot work properly) |
| where are proteins synthesised | ribosome |
| what happens if an enzyme is heated to high temperatures | denatured |
| Name two factors that affects enzyme activity | pH and temperature |
| what are hormones | chemical messengers that travel in blood to target tissue |
| what are antibodies | protect individual from disease/bacteria |
| A human gene is inserted into what structure during genetic engineering. | plasmid |
| what gas leaves the cell through stomata in photosynthesis | oxygen |
| what change in energy occurs during photosynthesis | light energy to chemical energy |
| name a molecule glucose can be changed into after photosynthesis has occured | starch or cellulose |
Created by:
kyle_academy
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