Curriculum
Course: Combined Science 0653 — Biology
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Curriculum

Combined Science 0653 — Biology

B1. Characteristics of Living Organisms and Cells

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B2. Biological Molecules and Enzymes

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B3. Plant Nutrition and Transport

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B4. Human Nutrition and Digestion

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B5. Transport in Humans

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B6. Respiration and Gas Exchange

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B7. Coordination, Response and Homeostasis

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B8. Reproduction and Inheritance

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B9. Organisms and their Environment

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Quiz

B1.4 Diffusion – Check yourself

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Diffusion Combined Science check yourself quiz: free practice for Combined Science. Work through this Diffusion Combined Science check yourself quiz and get instant feedback on every answer. If you get stuck, review the B1.4 Diffusion — Notes lesson. More practice: Combined Science — all units. Syllabus: Cambridge IGCSE qualifications.

  • Questions count: 7
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
Which step comes first in the sequence covered in this lesson?
Which step comes first in the sequence covered in this lesson?
Equal
Low concentration
High concentration
Random movement
2.
According to the comparison table in this lesson, what is the Reason of Surface area?
According to the comparison table in this lesson, what is the Reason of Surface area?
Factors affecting diffusion
Longer path
More particles move
More area for particles
More kinetic energy
3.
According to the comparison table in this lesson, what is the Example in body of Concentration gradient?
According to the comparison table in this lesson, what is the Example in body of Concentration gradient?
Factors affecting diffusion
O₂ fast, proteins slow
Thin alveolar walls
Villi, alveoli
Alveoli – blood flow keeps gradient
4.
Which key term matches this description: "Net movement of particles from high to low concentration."
Which key term matches this description: "Net movement of particles from high to low concentration."
Diffusion
Distance
Concentration gradient
Surface area
5.
Complete the statement: Diffusion moves from ______ concentration.
Complete the statement: Diffusion moves from ______ concentration.
faster
high to low
Concentration gradient
Surface area
6.
Which statement best describes Surface area?
Which statement best describes Surface area?
No energy from respiration needed.
Higher → faster.
Larger area → faster diffusion.
Net movement of particles from high to low concentration.
7.
Which statement best describes Temperature?
Which statement best describes Temperature?
Difference in concentration.
Higher → faster.
Net movement of particles from high to low concentration.
Shorter distance → faster.
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Part of B1. Characteristics of Living Organisms and Cells — see every lesson and quiz in this unit.
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