Lesson Worksheet: Movement in Plants Biology

In this worksheet, we will practice describing the tropisms that control movement in plants.

Q1:

What is the response of plants to a touch stimulus known as?

  • ATraumatotropism
  • BGeotropism
  • CChemotropism
  • DHydrotropism
  • EThigmotropism/haptotropism

Q2:

Which of the following best explains how legumes, a type of plant, use movements to utilize light-dark cycles?

  • ALegumes will move their leaves to close them at night and open them during the day.
  • BLegumes will move their leaves to ensure that they always grow toward the sun.
  • CLegumes will actively move their roots to find areas with more sunlight.

Q3:

What is cytoplasmic streaming?

  • AThe leaking of cytoplasm from damaged plant cells
  • BThe communication between cells, using signaling molecules in the cytoplasm
  • CThe transport of cytoplasmic substances between cells
  • DThe movement of cytoplasm within a cell

Q4:

If, when growing, the roots of a bean shoot touch an object (like an underground rock), signals are transmitted to encourage the root to grow away from that object. What tropism is being displayed here?

  • APositive gravitropism
  • BNegative thigmotropism/haptotropism
  • CNegative hydrotropism
  • DPositive chemotropism
  • ENegative phototropism

Q5:

Fill in the blank: Cytoplasmic streaming and thigmotropism are examples of .

  • Aplant growth methods
  • Bplant responses to touch
  • Cplant responses to external stimuli
  • Dplant movement

Q6:

A tendril is a specialized part of a climbing plant (pictured). If one side of a growing tendril touches an object, signals are transmitted to encourage the tendril to grow around the object. What tropism is being displayed here?

A tendril
  • APositive thigmotropism/haptotropism
  • BNegative gravitropism
  • CPositive gravitropism
  • DPositive hydrotropism
  • ENegative thigmotropism/haptotropism

Q7:

The pea plant has threadlike organs called tendrils. How do these tendrils demonstrate haptotropism?

  • ATendrils will react to a light stimulus by growing toward a light source.
  • BTendrils will react to touch stimulus by growing toward, and twining around, solid objects.
  • CTendrils will demonstrate haptotropism by their roots, growing toward a water source.

Q8:

What is the primary benefit of cytoplasmic streaming for a plant cell?

  • ACytoplasmic streaming delivers nutrients, metabolites, and organelles to different parts of the cell.
  • BCytoplasmic streaming aids the repair of a cell after it has been damaged.
  • CCytoplasmic streaming allows the plant to respond to a light stimulus and grow toward it, increasing cellular photosynthesis.
  • DCytoplasmic streaming encourages cell division and replication.

Q9:

State whether the following statements about movement in plants are true or false.

The response of a plant to a touch stimulus is known as gravitropism.

  • ATrue
  • BFalse

Plants cannot demonstrate any movement or change in growth in response to a stimulus.

  • AFalse
  • BTrue

The fluid within a plant cell can move by cytoplasmic streaming.

  • AFalse
  • BTrue

Q10:

Which of the following statements about plants is correct?

  • APlants are fully immobile organisms, and their direction of growth cannot be changed.
  • BPlants have no form of sleep–wake cycle to respond to dark–light cycles.
  • CPlants can respond to stimuli, like light and touch, by moving.
  • DPlants communicate between their own structures using a central nervous system.

This lesson includes 17 additional questions for subscribers.

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