Secondary Biology Test Questions & Answers

74 Questions | Total Attempts: 30

SettingsSettingsSettings
Please wait...
Secondary Biology Test Questions & Answers

Ever wondered how does the absorption of water and minerals by plants take place? What are trace elements? Check out the online quiz to test yourself and enhance your knowledge along the way.


Questions and Answers
  • 1. 
    Which of the following nutrients are obtained from the atmosphere and soil by plants?
    • A. 

      Ca, S, Fe

    • B. 

      Na, P, K

    • C. 

      C, H, O

    • D. 

      B, Cl, Mb, Zn

  • 2. 
    Which of the following nutrients are considered micronutrients?
    • A. 

      B, Mn, Cl, Zn

    • B. 

      C, N, P, K

    • C. 

      Ca, Mg, S, Fe

    • D. 

      C, H, K, Mg

  • 3. 
    Trace elements are the same as ……
    • A. 

      Macronutrients

    • B. 

      Micronutrients

    • C. 

      Atmospheric nutrients

    • D. 

      Secondary Nutrients

  • 4. 
    Which of the followings is trace element?
    • A. 

      Ca

    • B. 

      K

    • C. 

      Mg

    • D. 

      Cu

  • 5. 
    Which of the following elements is a macro-nutrient?
    • A. 

      Mo

    • B. 

      Cu

    • C. 

      P

    • D. 

      Al

  • 6. 
    How does water enter a plant?
    • A. 

      Through the stomata

    • B. 

      By active transport in root hair cells

    • C. 

      By osmosis in root hair cells down (along) a water potential gradient

    • D. 

      By osmosis in root hair cells up (against) a water potential gradient

  • 7. 
    How do mineral ions enter a plant?
    • A. 

      By imbibition through the roots

    • B. 

      By active transport in root hair cells

    • C. 

      By osmosis in root hair cells

    • D. 

      Through the stomata

  • 8. 
    Which of the following substances would diffuse faster across the membrane?
    • A. 

      Hydrophilic substances

    • B. 

      Hydrophobic substances

    • C. 

      Both hydrophilic and hydrophobic

    • D. 

      Polar substances

  • 9. 
    Assertion (A) “ belief ” : K+ ions accumulation found in Nitella depends on its respiratory activity.Reason (R): because absorption of all ions in plants depends on Osmotic Gradient.
    • A. 

      A and R are true and R is the correct explanation of A

    • B. 

      A and R are true but R is not the correct explanation of A

    • C. 

      A is true but R is false

    • D. 

      A is false but R is true

  • 10. 
    The first process by which water enters into the seed coat when a seed is placed in a suitable environment for germination is ........
    • A. 

      Osmosis

    • B. 

      Active transport

    • C. 

      Absorption

    • D. 

      Imbibition

  • 11. 
    Assertion: When dried seeds of pea are placed in a tin and water added up to their upper level and then a lid is put lightly over it. Within an hour, the lid will be blown off. Reason: Due to rapid cell division in pea seeds.
    • A. 

      Both Assertion and Reason are true and Reason is the correct explanation of the Assertion. 

    • B. 

      Assertion is false but the Reason happens actually.

    • C. 

      Assertion is true, but Reason is false.

    • D. 

      Both Assertion and Reason are false.

  • 12. 
    Inside root cells, water can take a route going from one cell wall to another cell wall, not entering the cytoplasm at any point by means of …..
    • A. 

      Imbibition

    • B. 

      Osmosis

    • C. 

      Diffusion

    • D. 

      Active transport

  • 13. 
    Which of the following statement is true regarding the movement of water?
    • A. 

      Water is mainly pushed through the plant

    • B. 

      Water is mainly pulled through the plant

    • C. 

      Water moves through the plant by active transport

    • D. 

      None of them

  • 14. 
    Unlike water, minerals cannot be passively absorbed (except a few) by the roots because.....
    • A. 

      Minerals are present in the soil as charged particles which cannot move across cell membrane

    • B. 

      The concentration of minerals in the soil is usually lower than the concentration of minerals in the root

    • C. 

      The two answers above are correct

    • D. 

      None of them

  • 15. 
    Which of the following statements is true for diffusion?
    • A. 

      Movement by diffusion is passive

    • B. 

      Diffusion occurs over short distances

    • C. 

      Not require the cell to expend energy.

    • D. 

      All of the above

  • 16. 
    Over small distances, substances move by .....
    • A. 

      Diffusion

    • B. 

      Cytoplasmic streaming

    • C. 

      Active transport

    • D. 

      All of the above

  • 17. 
    Which of the following is the only means for gaseous movement within the plant body?
    • A. 

      Diffusion

    • B. 

      Osmosis

    • C. 

      Both diffusion and osmosis

    • D. 

      None of them

  • 18. 
    Root cells secrete hydrogen ions which are positively charged. Such ions can easily displace ………. that are bound to clay particulates.
    • A. 

      Cl -

    • B. 

      SO4 -2

    • C. 

      K+

    • D. 

      Both Cl - and SO4 -2

  • 19. 
    Three cells are put in three solutions (A, B and C) differ in their osmotic pressure. What are A, B and C?
    • A. 

      C isotonic / B hypotonic / A hyper tonic

    • B. 

      B hypertonic / C isotonic / A hypotonic

    • C. 

      A isotonic / B hypotonic / C hypertonic

    • D. 

      B hypertonic / C hypotonic / A isotonic

  • 20. 
    Visking tubing is an artificial semi-permeable membrane tube (bag). In the experiment below, Solution R = 1% sucrose solution while Solution S = 3% sucrose solution. The experiment was left for 30 minutes. Predict the result of the experiment.
    • A. 

      Water moves into the bag and the contents of the bag gain mass.

    • B. 

      Water moves out of the bag and the contents of the bag lose mass.

    • C. 

      Water moves out of the bag and the contents of the bag gain mass.

    • D. 

      Water moves into the bag and the contents of the bag lose mass.

  • 21. 
    The diagram below shows the initial diameter of a potato disc. The potato disc was placed in a hypertonic solution for one hour. Which of the diagrams below correctly shows the change in the diameter of the disc?
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 22. 
    Red blood cells burst when they are placed in water because ....
    • A. 

      The cell contents are hypotonic to the water

    • B. 

      The cell contents are isotonic to the water

    • C. 

      The water is hypotonic to the cell contents

    • D. 

      The water is hypertonic to the cell contents

  • 23. 
    A piece of potato was cut and weighed. It was placed in a pure water for an hour and then removes. Dried and weighed again. Finally it was placed in a concentrated sugar solution for an hour, removed, bottled dry and weighed again. Which line records the results which would most likely be obtained?
    • A. 

      First weighing 5grams / Second weighing 6grams / Third weighing 4 grams

    • B. 

      First weighing 5 grams / Second weighing 4 grams / Third weighing 6 grams

    • C. 

      First weighing 6grams / Second weighing 5 grams / Third weighing 4 grams

    • D. 

      First weighing 5grams / Second weighing 4 grams / Third weighing 3grams

  • 24. 
    The diagram below shows the appearance of a plant cell which had been placed in an isotonic solution. Which of the following diagrams best illustrates the cell after being immersed in a hypertonic solution?
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 25. 
    The figure below is for red blood cells put in solutions having different solute concentrations. What about the concentration of each solution?
    • A. 

      C isotonic / D hpotonic / A hypertonic / B can’t be

    • B. 

      D can’t be / A isotonic / C hypertonic / B hypotonic

    • C. 

      B super hypotonic / C isotonic / D hypotonic / A hypertonic 

    • D. 

      A isotonic /B hypotonic / D super hypotonic / C hypertonic

Back to Top Back to top