The Cell Membrane: Gatekeeper of the Cell
Explore the structure and function of the cell membrane, including its components and roles in cellular transport, for Grade 9 Science.
Includes
Standards
Topics
The Cell Membrane: Gatekeeper of the Cell
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Refer to your knowledge of the cell membrane.
1. What is the primary function of the cell membrane?
Protein synthesis
Controlling what enters and leaves the cell
Storing genetic material
Producing energy
2. Which of the following is a key component of the cell membrane?
Cell wall
Mitochondria
Phospholipid bilayer
Nucleus
3. The cell membrane is described as a model because its components can move freely within the membrane.
4. Small, uncharged molecules like oxygen and carbon dioxide can pass through the cell membrane through the process of .
5. The cell membrane is impermeable to all substances.
True
False
6. Integral proteins are embedded within the lipid bilayer of the cell membrane.
True
False
7. Briefly explain the fluid mosaic model of the cell membrane.
8. Label the following components on the diagram of the cell membrane below:
a) Phospholipid bilayer
b) Integral protein
c) Peripheral protein
d) Glycoprotein
e) Cholesterol
Related Worksheets
Chemistry of Life Worksheet
Explore the fundamental chemical building blocks of life with this Grade 9 science worksheet on the Chemistry of Life, covering macromolecules, enzymes, and nucleic acids.
Radioactivity and Wildlife Worksheet
Explore the effects of radioactivity on wildlife and ecosystems with this Grade 9 science worksheet, covering radiation types, exposure, and environmental impact.
Blood Glucose Regulation Worksheet
A Grade 9 Science worksheet focusing on the mechanisms of blood glucose regulation, including the roles of insulin and glucagon, and the organs involved.
Biological Molecules Worksheet
Explore the four major classes of biological molecules: carbohydrates, lipids, proteins, and nucleic acids, and their roles in living organisms.
Enzyme Activity Worksheet
Explore the factors affecting enzyme activity, including temperature, pH, and substrate concentration, with this Grade 9 science worksheet.
Human Skull Anatomy Worksheet
A Grade 9 science worksheet on the anatomy and functions of the human skull, covering its bones, protective role, and key features.
Glucose Regulation Worksheet
A Grade 9 Science worksheet focusing on the biological processes of glucose regulation, including the roles of insulin, glucagon, and the pancreas.
Fermentation Fundamentals
Explore the basic principles of fermentation, including its types, processes, and applications in this Grade 9 science worksheet.