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Biology quiz - general

Bronte Penney 9 preguntas

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Preguntas del test (9)

  1. 1In a typical animal cell the structure includes mitochondria, cell wall, cell membrane, nucleus and cytoplasm.
    1. AVerdadero
    2. BFalso
  2. 2A virus cell contains RNA and DNA.
    1. AVerdadero
    2. BFalso
  3. 3What does it mean when a plant is turgid?
    1. AThe water has moved out the cell by osmosis, the cell decreases in volume and the cytoplasm no longer pushes against the cell wall. This makes the plant wilt. Excessive loss of water can cause the cell to become plasmolysed, when the membrane and cytoplasm split away from the wall
    2. BWater has moved into the plant cell by osmosis. The pressure increases inside the cell, the contents of the cell push against the wall which helps support the plant tissues.
  4. 4What factors affect the rate of diffusion/active transport/osmosis in cells?
    1. Aconcentration, surface area to volume ratio, temperature
    2. Bpressure, temperature, concentration
  5. 5what is the word equation for photosynthesis?
    1. ACarbon dioxide + water ----> glucose + oxygen
    2. Boxygen + carbon dioxide + water ----> glucose + oxygen
  6. 6What are lipids made of?
    1. Aamino acids and glycerol
    2. Bfatty acids and glycerol
  7. 7How can you test for Glucose?
    1. AAdd iodine, if glucose in present the colour changes from browny-orange to blue-black
    2. BAdd benedicts reagent and heat it, if glucose is present it will form a colours precipitate. The coloured precipitate changes colour from blue to green to yellow to orange to brick red.
  8. 8What is the function of bile in the human body?
    1. Aemulsifies fats and neutralises stomach acid into alkaline
    2. Bneutralises stomach acid and helps protect lining of stomach
  9. 9Amylase converts starch into maltose.....and maltase converts maltose into?
    1. AGlucose
    2. BAmino acids

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Descripción
Test sobre Biology quiz - general, creado por Bronte Penney el 29/12/2013.
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