Chamberlain BIOS251 Exam 2 Final
Assessement Questions And Detailed
Answers.
Metabolism - Answer Sum of all chemical reactions in the body
Anabolism (synthesis reaction) - Answer Builds molecules
catabolism (decomposition reaction) - Answer Break down molecules
Cellular respiration - Answer -metabolic reaction in cells
-converts glucose to ATP (energy)
Aerobic respiration - Answer -Requires oxygen
-creates CO2, water, and ATP
Cell structure sub parts - Answer 1. Plasma (cell) membrane
2. Cytoplasm (cytosol + organelles)
Plasma membrane STRUCTURE - Answer -defines boundaries of the cell
-intracellular fluid
-extracellular fluid
Phospholipids - Answer Layers of lipids, Ampipathic molecules (both hydrophobic +
hydrophilic)
Two types of membrane proteins - Answer 1. integral proteins
2. peripheral proteins
Integral (transmembrane) proteins - Answer -span ENTIRE DEPTH of plasma membrane
-ampipathic
, Receptor function (membrane protein) - Answer Binds to chemical messengers such as
hormones sent by other cells
Enzyme function (membrane protein) - Answer Breaks down a chemical messenger and
terminates it's effect
Gated channel function (membrane protein) - Answer Gate that opens and closes to allow
select solutes through
Channel function (membrane protein) - Answer Constantly open and allows solutes through
Cell-identity marker (membrane protein) - Answer Glycoprotein distinguishing body's own
cells from foreign cells
Cell-adhesion molecule (membrane protein) - Answer Binds one cell to another
Functions of plasma membrane - Answer 1. Define boundaries of cell
2. Provide structural support for fell
3. Provide protection for cell
4. Regulate transport of substances in + out of cell
5. Monitor and detect changes in extra cellular fluid
Gradient across plasma membrane - Answer Difference in concentration of s chemical
between one side of plasma membrane to another
Plasma membrane transports - Answer 1. Passive transport (no energy required)
2. Active transport (requires energy)
Active transport - Answer -requires energy
-vesticular transport
Passive transport - Answer -no energy required
Assessement Questions And Detailed
Answers.
Metabolism - Answer Sum of all chemical reactions in the body
Anabolism (synthesis reaction) - Answer Builds molecules
catabolism (decomposition reaction) - Answer Break down molecules
Cellular respiration - Answer -metabolic reaction in cells
-converts glucose to ATP (energy)
Aerobic respiration - Answer -Requires oxygen
-creates CO2, water, and ATP
Cell structure sub parts - Answer 1. Plasma (cell) membrane
2. Cytoplasm (cytosol + organelles)
Plasma membrane STRUCTURE - Answer -defines boundaries of the cell
-intracellular fluid
-extracellular fluid
Phospholipids - Answer Layers of lipids, Ampipathic molecules (both hydrophobic +
hydrophilic)
Two types of membrane proteins - Answer 1. integral proteins
2. peripheral proteins
Integral (transmembrane) proteins - Answer -span ENTIRE DEPTH of plasma membrane
-ampipathic
, Receptor function (membrane protein) - Answer Binds to chemical messengers such as
hormones sent by other cells
Enzyme function (membrane protein) - Answer Breaks down a chemical messenger and
terminates it's effect
Gated channel function (membrane protein) - Answer Gate that opens and closes to allow
select solutes through
Channel function (membrane protein) - Answer Constantly open and allows solutes through
Cell-identity marker (membrane protein) - Answer Glycoprotein distinguishing body's own
cells from foreign cells
Cell-adhesion molecule (membrane protein) - Answer Binds one cell to another
Functions of plasma membrane - Answer 1. Define boundaries of cell
2. Provide structural support for fell
3. Provide protection for cell
4. Regulate transport of substances in + out of cell
5. Monitor and detect changes in extra cellular fluid
Gradient across plasma membrane - Answer Difference in concentration of s chemical
between one side of plasma membrane to another
Plasma membrane transports - Answer 1. Passive transport (no energy required)
2. Active transport (requires energy)
Active transport - Answer -requires energy
-vesticular transport
Passive transport - Answer -no energy required
