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WorksheetsHonors Bio- Xidas
Total questions: 12
Worksheet time: 9mins
____ contains polar and nonpolar ends, forming the plasma membrane.
microtubule
transport protein
cytoskeleton
phospholipid bilayer
What is the function of a selectively permeable membrane?
provides alternative to phospholipid bilayer
prevents transport proteins from harming cell
controls what enters and leaves cell
blocks all water from entering cell
What does this dipict: Phospholipids in the plasma membrane create a fluid environment in which other molecules can float, allowing selective permeability. This is known as the fluid mosaic model.
cytoskeleton
fluid mosaic model
impermeable membrane
genetic material
What critical function does cholesterol serve in the body?
What critical function does cholesterol serve in the body
binds fatty acid tails to water
disrupts homeostasis
increases fluidity of plasma membrane
What moves needed substances or waste materials through the plasma membrane?
transport proteins
polar heads
DNA
water molecules
The semifluid environment inside the plasma membrane is called ____.
endoplastic reticulum
microtubules
cytoplasm
mitochondria
In which cell structure are ribosomes produced?
microtubules
nucleolus
plasma membrane
golgi apparatus
This shows an example of endoplasmic reticulum. What is the significance of its structure?
provides a location for DNA production
helps decrease surface area
allows selective permeability of cell membrane
facilitates breakdown of chemical bonds
Which of the following is not a function of the Golgi apparatus?
modifies proteins
produces proteins
organizes where proteins are sent
packages proteins into vesicles
Vesicles that digest worn-out organelles or food particles are called ____.
lysosomes
centrioles
ribosomes
plasma membranes
Vesicles that digest worn-out organelles or food particles are called ____.
plasma membranes
lysosomes
ribosomes
centrioles
____ contains polar and nonpolar ends, forming the plasma membrane.
cytoskeleton
phospholipid bilayer
microtubule
transport protein
