Lesson Worksheet: Support in Plants Biology

In this worksheet, we will practice describing examples of physiological and structural support in plants.


What is the primary function of structural support materials in plants?

  • ATo increase the rate at which materials pass through the plant
  • BTo allow flexibility and movement for the plant
  • CTo maintain the shape of the plant and the plant cells
  • DTo control which substances enter and leave plant cells


Which of the following is the major component of plant cell walls that has the primary function of providing support to the cell?

  • AStarch
  • BCellulose
  • CCollagen
  • DGlycogen
  • EGlucose


Which of the following is a polymer found in the cell walls of vascular tissue, such as the xylem, to provide additional structural support?

  • ALignin
  • BKeratin
  • CLactose
  • DCollagen
  • EGlycogen


What is the primary role of cutin and suberin in plants?

  • ATo maintain the shape of cell walls
  • BTo provide structure and support to the vascular tissues
  • CTo act as impermeable and waterproof barriers
  • DTo determine what enters and leaves the plant cells
  • ETo maintain the shape of the reproductive organs


Which of the following is not a type of simple plant cell?

  • ASclerenchyma
  • BMesenchyma
  • CParenchyma
  • DCollenchyma


What will visibly happen to a plant if cell turgidity is not maintained?

  • AThe flowers will drop off.
  • BThe leaves will turn yellow.
  • CThe surface area of the leaves will expand.
  • DThe stem will grow at a faster rate.
  • EThe leaves and the plant will wilt.


Which of the following tables correctly differentiates between examples of structural and physiological support in plants?

  • A
    ExamplesCellulose in cell walls
    Lignin in xylem walls
    The vacuole increasing/decreasing the turgidity of cells
  • B
    ExamplesThe vacuole increasing/decreasing the turgidity of cells Cellulose in cell walls
    Lignin in xylem walls


The simple diagram provided shows a plant cell increasing in turgidity.

As the turgidity of a plant cell increases, what happens to the turgor pressure?

  • AIt remains constant.
  • BIt decreases.
  • CIt increases.


Two simplified diagrams of plant cells are provided. In which diagram is the cell more turgid?


The diagram provided shows how cells can increase their turgidity. By what process does water move into the vacuole of the cell?

  • AFacilitated diffusion
  • BActive transport
  • CExocytosis
  • DEndocytosis
  • EOsmosis

This lesson includes 15 additional questions for subscribers.

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