Cell Biology
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Preview questions (no answers)
- 1.
Which of these scientists is NOT typically associated with the development of the classical cell theory?
A.Matthias Schleiden
B.Theodor Schwann
C.Rudolf Virchow
D.Charles Darwin
- 2.
What happens to the surface area to volume ratio as a cell increases in size?
A.It increases
B.It decreases
C.It stays the same
D.It doubles
- 3.
Which function of life describes the production of energy-rich molecules from food?
A.Reproduction
B.Growth
C.Nutrition
D.Metabolism
Download the worksheet for Cell Biology - Cell Theory to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
How do ribosomes differ from most other organelles like mitochondria or the nucleus?
A.They are much larger
B.They are not surrounded by a membrane
C.They are only found in plant cells
D.They contain their own DNA
- 2.
Which of the following is found in the chloroplasts and used for the process of making food?
A.Thylakoids
B.Cristae
C.Centrioles
D.Lysosomes
- 3.
What is the main component of the cytoplasm?
A.Proteins
B.Water
C.Lipids
D.Carbohydrates
Download the worksheet for Cell Biology - Cell Organelles to practice offline. It includes additional chapter-level practice questions.
Prokaryotic vs Eukaryotic Cells
SubtopicProkaryotic vs Eukaryotic Cells under Cell Biology for Grade 9 IB.
Preview questions (no answers)
- 1.
What is the name of the theory that suggests mitochondria and chloroplasts evolved from prokaryotic cells?
A.Cell Theory
B.Evolutionary Theory
C.Endosymbiotic Theory
D.Gene Theory
- 2.
In which eukaryotic organelle is light energy converted into chemical energy?
A.Mitochondrion
B.Chloroplast
C.Golgi apparatus
D.Lysosome
- 3.
Which cell type is generally considered more primitive and evolutionary older?
A.Eukaryotic
B.Prokaryotic
C.Multicellular
D.Plant
Download the worksheet for Cell Biology - Prokaryotic vs Eukaryotic Cells to practice offline. It includes additional chapter-level practice questions.
Membrane Transport (Diffusion, Osmosis, Active Transport)
SubtopicMembrane Transport (Diffusion, Osmosis, Active Transport) under Cell Biology for Grade 9 IB.
Preview questions (no answers)
- 1.
A cell contains 5% salt and is placed in a solution with 20% salt. What is the solution relative to the cell?
A.Hypotonic
B.Isotonic
C.Hypertonic
D.Dilute
- 2.
Which organelle produces the ATP required for active transport?
A.Chloroplast
B.Ribosome
C.Mitochondrion
D.Vacuole
- 3.
If a membrane allows water but not sugar to pass, it is:
A.Fully permeable
B.Impermeable
C.Selectively permeable
D.A cell wall
Download the worksheet for Cell Biology - Membrane Transport (Diffusion, Osmosis, Active Transport) to practice offline. It includes additional chapter-level practice questions.