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How many types of phloem cells are there?

Practice Questions

Q1
How many types of phloem cells are there?
  1. 1
  2. 2
  3. 3
  4. 4

Questions & Step-by-Step Solutions

How many types of phloem cells are there?
Correct Answer: 2
  • Step 1: Understand that phloem is a type of tissue in plants.
  • Step 2: Learn that phloem is responsible for transporting nutrients, especially sugars.
  • Step 3: Identify the two main types of cells in phloem: sieve elements and companion cells.
  • Step 4: Recognize that sieve elements are the cells that actually transport the sugars.
  • Step 5: Understand that companion cells support sieve elements and help with their function.
  • Phloem Structure – Phloem is composed of specialized cells that transport nutrients, primarily sugars, throughout the plant.
  • Sieve Elements – These are the main conducting cells in phloem that facilitate the movement of sap.
  • Companion Cells – These cells support sieve elements by providing metabolic functions and helping in the loading and unloading of sugars.
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