| Question | Answer |
| what cell is formed by fusing a male and female gamete? | zygote
|
what is the detailed internal structure of a cell called? | ultrastructure
| what term describes a plant cell that is full of water? | turgid
| what is the process of water loss from plant leaves? | transpiration
| Describe the function of vesicles | transport out/into cells
| An unidentified cell is found to contain mitochondria. Is it prokaryotic or eukaryotic? | eukaryotic
| How is magnification calculated? | image/actual size
| Name a common stain used in preparing slides | iodine etc
| Give three molecules, other than proteins and cholesterol, that are present in animal cell membranes. | phospholipids,glycolipids,glycoproteins
| What is cell signalling? | coordination and communication
| List three ways to increase the rate of diffusion | short distance, steep concentration gradient, higher temperature
| Describe what happens to a plant cell if it is placed in a solution with a higher water potential than the cell | water moves in by osmosis and cell becomes turgid
| During which stage in mitosis does the nuclear envelope break down? | prophase
| Name the type of cell division that produces the gametes. | meiosis
| Describe how a palisade cell is adapted for its role in photosynthesis? | tessellate, contain many chloroplasts, thin
| How do the surface area to volume rations of large and small organisms differ? | larger has a smaller SA:Vol
| Explain why the circulatory system of a fish is described as being closed |
| Which chamber of the heart receives blood from the lungs? |
| What prevents impulses from the atria travelling straight into the ventricles? |
| Name the structure that picks up impulses from the atria and passes them on to the ventricles |
| How many oxygen molecules can each haemoglobin molecule carry? |
| What effect does respiration have on a cells pO2? |
| Name the substance that thickens the walls of xylem vessels | |
