logo

Learning objective

Connect the structure of xylem vessels to their functions, focusing on: (a) the presence of thick lignified walls (details of lignification are not necessary), (b) the absence of cell contents, and (c) the arrangement of cells end to end without cross walls to create a continuous tube.

Read the explanation, check the common trap, then practise with flashcards and questions.

Practise this topicRead the exam answerTopic hub

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE BiologyTransport in plantsSupplement content

Study support

Understand this objective

Quick explanation

Connect the structure of xylem vessels to their functions, focusing on: (a) the presence of thick lignified walls (details of lignification are not necessary), (b) the absence of cell contents, and (c) the arrangement of cells end to end without cross walls to create a continuous tube

  • This point belongs to Xylem and phloem, especially Xylem and phloem outcomes.
  • You need to be able to connect the structure of xylem vessels to their functions, focusing on: (a) the presence of thick lignified walls (details of lignification are not necessary), (b) the absence of cell contents, and (c) the arrangement of cells end to end without cross walls to create a continuous tube.
  • The key ideas to know are Relate.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Relate

Why it matters

This objective helps connect Xylem and phloem outcomes to exam-style questions, flashcards, and revision notes for Xylem and phloem.

Revision tools

Choose how to practise

Back to topic hub
Flashcards10 linked cards

Flashcard 1 of 10

Press Space to flip, arrows to move
Practice Questions7 linked questions

Question 1 of 7

Choose an answer, get feedback, then move sideways through the set.

0 of 5 attempted

Paper 4 structured question: Xylem and phloem

Paper 4Theory (Extended)3 marks

Diagram Description

Diagram of Xylem Vessel Structure

The diagram shows xylem vessels with thick walls, no cell contents, and cells joined end to end without cross walls.

  1. a

    State one way in which the thick lignified walls of xylem vessels help their function.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Identify two structural features of xylem vessels that allow continuous water flow.

    Aim for approximately 2 distinct marking points.

    [2]
Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

Open revision notes

Related learning objectives

Revision hubs

Move back to a broader study route

Cambridge IGCSEBiology resources