Describe two primary functions of the cell membrane.

Describe two primary functions of the cell membrane.
Draw a phospholipid, label the hydrophilic and hydrophobic components?
Explain what hydrophobic and hydrophilic mean.
Draw a phospholipid bilayer . Include several phospholipids (tails and heads should be clearly visible.) There
is no need to label the components of the phospholipid in this diagram.
Please explain why a polar nature of a phospholipid molecule causes a phospholipid bilayer to form naturally
in water.
Explain how cell membrane fluidity is related to temperature?
What is the function of cholesterol in the cell membrane?
Explain exactly what is happening to the distance between phospholipids in a cell membrane as the
membrane temperature rises and falls.
What is the function of carbohydrates in the cell membrane.
Provide one real world example of carbohydrates performing their function in a cell membrane.
Proteins are large molecules composed of smaller molecules called?
What is one major function of proteins in the cell membrane?
Which kind of molecules can pass directly through the cell membrane by simple diffusion?
Which kind of molecules can not pass directly through the cell membrane by simple diffusion?
Provide one real world example of a molecule that can pass across a human cell membrane by simple
(normal ) diffusion.
Provide one real world example of a molecule that must pass across the membrane by facilitated diffusion?
Compare facilitated diffusion and active transport.
Where in the human body can endocytosis be observed?
Where In the human body can exocytosis be observed?
Will particles or nutrients enter the cell by endocytosis or exocytosis?
An animal cell is placed in a beaker of salty water. The salty water is much saltier than the salt content
inside the cell. In this case salt will not move across the membrane of a the cell. Will the volume of this cell
increase or decrease? Why?
This is an example of an effect known as?
Describe two primary functions of the cell membrane.
Draw a phospholipid, label the hydrophilic and hydrophobic components?
Explain what hydrophobic and hydrophilic mean.
Draw a phospholipid bilayer . Include several phospholipids (tails and heads should be clearly visible.) There
is no need to label the components of the phospholipid in this diagram.
Please explain why a polar nature of a phospholipid molecule causes a phospholipid bilayer to form naturally
in water.
Explain how cell membrane fluidity is related to temperature?
What is the function of cholesterol in the cell membrane?
Explain exactly what is happening to the distance between phospholipids in a cell membrane as the
membrane temperature rises and falls.
What is the function of carbohydrates in the cell membrane.
Provide one real world example of carbohydrates performing their function in a cell membrane.
Proteins are large molecules composed of smaller molecules called?
What is one major function of proteins in the cell membrane?
Which kind of molecules can pass directly through the cell membrane by simple diffusion?
Which kind of molecules can not pass directly through the cell membrane by simple diffusion?
Provide one real world example of a molecule that can pass across a human cell membrane by simple
(normal ) diffusion.
Provide one real world example of a molecule that must pass across the membrane by facilitated diffusion?
Compare facilitated diffusion and active transport.
Where in the human body can endocytosis be observed?
Where In the human body can exocytosis be observed?
Will particles or nutrients enter the cell by endocytosis or exocytosis?
An animal cell is placed in a beaker of salty water. The salty water is much saltier than the salt content
inside the cell. In this case salt will not move across the membrane of a the cell. Will the volume of this cell
increase or decrease? Why?
This is an example of an effect known as?
What is the main functions of the cell nucleus?
explain two reasons it beneficial to copy the dna into RNA before
making proteins.?
Draw and label the major components of the cell nucleus.?
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Match the labels from your drawing to the concepts and definitions
below.
This molecule is a copy of the dna used to create proteins?
Where in the nucleus are ribosomes produced?
During cell division DNA is tightly packed with protein in the nucleus
to form these X shaped structures.
when the cell is not dividing and is undergoing normal functions the
DNA is Loosely packed with proteins into a spaghetti like formation
DNA stored in this way is called what?
This structure is embedded in the nuclear membrane and controls the
passage of molecules across the nuclear membrane?
This is a Large complex molecul e found in the nucleus that combines
with RNA to make proteins.
This viscous region of the nucleus contains proteins and chromatin
chromosomes during cell division.