logo

Cambridge IGCSE Combined Science practice

Which elements are found in carbohydrates?

Try the question first, then check the answer and practise the same topic again.

Show answerBiological molecules revisionRevise the key idea

At a glance

MCQ

Type

cambridge_mcq

Style

Topic

Biological molecules

Exam-style question

Try this first

Which elements are found in carbohydrates?.

  1. A.Carbon, Hydrogen, Oxygen
  2. B.Carbon, Nitrogen, Oxygen
  3. C.Hydrogen, Nitrogen, Sulfur
  4. D.Carbon, Hydrogen, Nitrogen

Answer and explanation

Attempt the question first, then reveal the model answer and explanation.

Common mistake

No common mistake is linked to this question yet.

Related flashcards

Flashcard 1 of 6

Press Space to flip, arrows to move

Related practice questions

Question 1 of 5

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

0 of 3 attempted

Paper 3 structured question: Biological molecules

Paper 3Theory (Core)2 marks

Description

Chemical Composition of Biomolecules

Carbohydrates, fats, and proteins are essential biomolecules made up of specific chemical elements. Carbohydrates primarily consist of carbon (C), hydrogen (H), and oxygen (O). Fats, also known as lipids, are composed of carbon (C), hydrogen (H), and oxygen (O), but in different ratios compared to carbohydrates. Proteins are made up of carbon (C), hydrogen (H), oxygen (O), and nitrogen (N), and sometimes sulfur (S).

  1. a

    Identify List the chemical elements that make up carbohydrates, fats, and proteins.

    Aim for approximately 2 distinct marking points.

    [2]