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WorksheetsCell Membrane & Diffusion
Total questions: 12
Worksheet time: 12mins
The cell membrane may also be referred to as the ___________________.
Cell Wall
Nucleolus
Phenolipase Layers
Plasma Membrane
Small units called ____________________ are what make up the cell membrane.
Phospholipids
Ribosomes
Nucleotides
Amino Acids
The cell membrane allows only certain materials to move into and out of the cell. What term describes this ability?
Permeable
Selectively Palatable
Semi-permeable
Semi-Photosynthetic
This image represents which type of structure?
Hydrogen
Nucleus
Membrane Tissue
Phospholipid
Based on the diagram below, what does the term "Hydrophobic" mean?
Attracted to water
Repels water
Electrified in water
Fear of drowning
The structure pictured is referred to as the ________________________.
Phospholipid Bilayer
Cellular Transport System (CTS)
Aquafiltration System
Hydrodynamic Filtration
Based on the image, where will the carbon dioxide molecules move towards?
Inside the cell
Outside the cell
Remain in the hydrophobic tails of the membrane
They will not be able to pass through the phospholipid bilayer
Based on this diagram, which direction will the oxygen molecules move towards?
Inside the cell
Outside the cell
Remain in the hydrophobic tails of the membrane
They will not be able to pass through the phospholipid bilayer
Why is sliding down a slide a good comparison to "passive transport"?
Because cells contain water, just like a water slide.
Because it does not require any energy to go from the low point to the high point of a slide.
Because it requires energy to go from the high point to the low point of a slide.
Because it does not require any energy to go from the high point to the low point of a slide.
Diffusion will always move molecules ____________________________________.
towards the highest concentration of molecules
with the concentration gradient.
from low to high concentration
against the concentration gradient.
Cells obtain nutrients and get rid of wastes through diffusion.
Why do cold-blooded animals, such as snakes and turtles, need to bask in sunshine before they can move as quickly as warm-blooded animals on a cold day?
Molecules move faster in warmer temperatures.
Molecules move faster in colder temperatures.
Snakes cellular molecules an already move faster than turtles.
Warm blooded animals will prey on cold blooded animals in the sunshine.
How does the size of a molecule affect it's rate of diffusion?
The larger a molecules, the faster it can diffuse.
The smaller the molecule, the faster it can diffuse.
The heavier the molecule, the faster it can diffuse.
Size does not impact the rate of diffusion.
