1. Leaving Certificate Biology Biology General Knowledge 4 iQuiz SECOND Press the F5 Key to Begin, Then click on this Blue Box FIRST In PowerPoint 2007 if you see a Security Warning click HERE on Options… and then click on  Enable this content

2. Dilation of the pupil of the eye is brought about by … Excessive windThe iris The lensThe choroid

3. A solution with a lower solute concentration than the surrounding solution is known as what type of solution? IsotonicHypotonic HypertonicIsotopic

4. Blood returns to the heart from the lungs in what blood vessel? AortaVena cava Pulmonary arteryPulmonary vein

5. The growth response of part of a plant towards an external unidirectional stimulus is a … Positive tropismGeotropism Negative tropismHydrotropism

6. The oxygen needed by aerobic organisms comes from which of the following processes? RespirationGlycolysis ChemosynthesisPhotosynthesis

7. During the formation of base pairs in DNA adenine always bonds with … GuanineThymine UracilCytosine

8. Chicken pox is a disease caused by a … VirusBacteria FungusAn infection

9. At night green plants excrete … HydrogenCarbon dioxide OxygenNitrogen

10. The basic structural part of a fungus is a … CellMycelium HyphaZoospore

11. In which organ does menstruation occur? KidneyLiver UterusLeaf

12. Bacteria can survive unfavourable conditions by … Binary fission Forming endospores Forming flagella Undergoing meiosis

13. What substance is excreted during bacterial denitrification? UreaNitrogen OxygenCarbon dioxide

14. Which of the following is not involved in protein synthesis? DNAmRNA ChloroplasttRNA

15. The temperature of a bird is higher than that of a man. If a bird moved from a temperature of 24 °C to one of 29 °C, what would its temperature be in the second place? 24 °C29 °C 37 °CNone of these

16. Name the type of cell! Elongated, placed end to end, separated by a perforated cell plate so that the cytoplasm of one cell is continuous with the cytoplasm of the adjoining cell. Xylem tracheidsPhloem sieve tube Xylem vesselCompanion cell

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