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Lesson Worksheet: Translocation in the Phloem Biology

In this worksheet, we will practice describing the process of translocation in plants.

Q1:

Which vessel in the plant is responsible for transporting sugars and amino acids?

  • AXylem
  • BPhloem

Q2:

Which of the following best explains the relationship between light intensity and translocation?

  • AA higher light intensity means more sugars are made by photosynthesis and thus a lower rate of translocation.
  • BA higher light intensity means more sugars are made by respiration and thus a higher rate of translocation.
  • CA higher light intensity means more sugars are made by respiration and thus a lower rate of translocation.
  • DA higher light intensity means more sugars are made by photosynthesis and thus a higher rate of translocation.

Q3:

When sugars are not being used by the plant, they can be stored as an insoluble compound. What compound are sugars mainly stored as in plants?

  • AGlycogen
  • BStarch
  • CSucrose
  • DGlucose

Q4:

Use the terms “sources” and “sinks” to complete the following sentence: Translocation is primarily the movement of sugars from to .

  • Asources, sinks
  • Bsinks, sources

Q5:

Which parts of the plant are sinks of sugars?

  • AAnywhere sugars are made (e.g., the leaves)
  • BAnywhere sugars are stored (e.g., the seeds)

Q6:

Functionally, a plant can be divided into sources and sinks. Which parts of the plant are sources of sugars?

  • AAnywhere sugars are stored (e.g., the seeds)
  • BAnywhere sugars are made (e.g., the leaves)

Q7:

The glucose made in photosynthesis is converted into a different sugar to be moved around the plant in translocation. What sugar is glucose converted into?

  • ASucrose
  • BGalactose
  • CRibose
  • DFructose

Q8:

What biological process makes glucose in the leaves of a plant?

  • APhotosynthesis
  • BTranslocation
  • CRespiration
  • DTranspiration

Q9:

The transport of sugars around the plant can go in more than one direction. What term is given to this process?

  • APolydirectional
  • BDidirectional
  • CTridirectional
  • DBidirectional

Q10:

Which of the following best describes the structure of the phloem?

  • AThe phloem is comprised of many living sieve cells that have pores in their cell walls to allow movement of substances through the plant.
  • BThe phloem is comprised of many dead sieve cells that have pores in their cell walls to allow movement of substances through the plant.
  • CThe phloem is comprised of dead sieve cells that form a long continuous tube.
  • DThe phloem is comprised of living sieve cells that form a long continuous tube.

This lesson includes 15 additional questions for subscribers.

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