APHY 201 Ch 3-5 Cells, Metabolism Ivy Tech Exam Questions with Correct
Answers
Question 1:
Polar, hydrophilic heads and nonpolar, hydrophobic tails of phospholipids arrange with
embedded proteins and cholesterol into a
phospholipid bilayer to form the plasma membrane of the cell
Membrane lipids
75% phospholipids (lipid bilayer)
5% glycolipids (sugar attachments oriented to extracellular surface) 20% cholesterol
Answer:
Fluid mosaic model of plasma membrane
Question 2:
Allow communication with environment
Answer:
Membrane proteins
Question 3:
Can interact with lipid tails and water
Answer:
Have hydrophobic and hydrophilic regions
Question 4:
Function as enzymes; motor proteins for shape change during cell division and muscle
contraction; cell-to-cell connections
Glycocalyx
Answer:
Loosely attached to integral proteins
"Sugar covering" at cell surface involved with cell recognition. Every cell type has different
pattern of
, Question 5:
Allows immune system to recognize "self" and "non self" Glycoprotein
Glycolipid
a lipid attached to one or more carbohydrates Interstitial fluid
high concentrations of sodium ions.
Cytoplasm
dissolved solutes, organelles, and inclusions Intracellular fluid
dissolved in water with high concentrations of potassium ions.
Inclusion membrane
Answer:
sugars with specific biological markers for cell recognition.
a protein with one or more carbohydrates attached that face the extracellular surface
or tissue fluid is a solution that bathes and surrounds the tissue cells. It is the main component
of the extracellular fluid, which also includes plasma. A complex mixture of substances
dissolved in water with occupies space between cell membrane and nucleus; consists of cytosol
(intracellular fluid) containing or cytosol is the liquid found inside cells and is part of the
cytoplasm; a complex mixture of substances in cytoplasm stored nutrients, secretory products,
and pigment granules that are not bound by
Question 6:
Mitochondria, endoplasmic reticulum, golgi apparatus, centrosome, lysosome, vesicles,
peroxisomes
Answer:
Organelles in cytoplasm
Question 7:
Powerhouse of the cell; organelle that is the site of ATP (energy) production (cellular
respiration);
Answer:
Mitochondria
Question 8:
Rough endoplasmic reticulum
Answer:
double-membrane structure; contains own DNA and ribosomes
system of membranes that appear rough due to the presence of ribosomes which manufacture
all proteins secreted from cells; functions to manufacture all secreted proteins and membrane
integral proteins and phospholipids, and attach sugar groups to proteins in the cisterns.
Proteins are bound to
Answers
Question 1:
Polar, hydrophilic heads and nonpolar, hydrophobic tails of phospholipids arrange with
embedded proteins and cholesterol into a
phospholipid bilayer to form the plasma membrane of the cell
Membrane lipids
75% phospholipids (lipid bilayer)
5% glycolipids (sugar attachments oriented to extracellular surface) 20% cholesterol
Answer:
Fluid mosaic model of plasma membrane
Question 2:
Allow communication with environment
Answer:
Membrane proteins
Question 3:
Can interact with lipid tails and water
Answer:
Have hydrophobic and hydrophilic regions
Question 4:
Function as enzymes; motor proteins for shape change during cell division and muscle
contraction; cell-to-cell connections
Glycocalyx
Answer:
Loosely attached to integral proteins
"Sugar covering" at cell surface involved with cell recognition. Every cell type has different
pattern of
, Question 5:
Allows immune system to recognize "self" and "non self" Glycoprotein
Glycolipid
a lipid attached to one or more carbohydrates Interstitial fluid
high concentrations of sodium ions.
Cytoplasm
dissolved solutes, organelles, and inclusions Intracellular fluid
dissolved in water with high concentrations of potassium ions.
Inclusion membrane
Answer:
sugars with specific biological markers for cell recognition.
a protein with one or more carbohydrates attached that face the extracellular surface
or tissue fluid is a solution that bathes and surrounds the tissue cells. It is the main component
of the extracellular fluid, which also includes plasma. A complex mixture of substances
dissolved in water with occupies space between cell membrane and nucleus; consists of cytosol
(intracellular fluid) containing or cytosol is the liquid found inside cells and is part of the
cytoplasm; a complex mixture of substances in cytoplasm stored nutrients, secretory products,
and pigment granules that are not bound by
Question 6:
Mitochondria, endoplasmic reticulum, golgi apparatus, centrosome, lysosome, vesicles,
peroxisomes
Answer:
Organelles in cytoplasm
Question 7:
Powerhouse of the cell; organelle that is the site of ATP (energy) production (cellular
respiration);
Answer:
Mitochondria
Question 8:
Rough endoplasmic reticulum
Answer:
double-membrane structure; contains own DNA and ribosomes
system of membranes that appear rough due to the presence of ribosomes which manufacture
all proteins secreted from cells; functions to manufacture all secreted proteins and membrane
integral proteins and phospholipids, and attach sugar groups to proteins in the cisterns.
Proteins are bound to
