Lesson Worksheet: Support in Plants Biology

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

Q1:

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

Q2:

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

Q3:

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

Q4:

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

Q5:

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

  • ASclerenchyma
  • BMesenchyma
  • CParenchyma
  • DCollenchyma

Q6:

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.

Q7:

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

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

Q8:

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.

Q9:

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

Q10:

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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