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5.0
Biol 212 Exam 1 SDSU Questions with Detailed
Verified Answers (100% Correct Answers) /Already
Graded A+
Quiz: Cytology
Ans: the study of cells
Quiz: What can cells do?
Ans: 1. Concentrate needed molecules
2. Expel waste
3. Synthesize large molecules with complex functions
4. Generate, store, and use energy for metabolic purposes
5. Move
Quiz: Diseases usually begin at the _______ level
Ans: Cellular
Quiz: Germ/gametes
Ans: Sex cells, sperm & egg
Quiz: Somatic cell
Ans: Cells of the body
Sunday, 02 March 2025
,Quiz: Cytosol
Ans: Intracellular fluid (ICF)
Quiz: Cytoplasm
Ans: Made up of cytosol and organelles
Quiz: Extracellular fluid
Ans: Usually a watery fluid (such as interstitial fluid)
-It is the matrix of connective tissue
-Little intercellular space in some tissues
-Provides medium
Quiz: Plasma Membrane
Ans: -Surrounds every cell
-Separates cell contents from its surroundings (separates ICF from ECF)
-Controls movement of molecules into and out of cell (selectively permeable
surface)
Quiz: Functions of the plasma membrane
Ans: -Physical isolation of cell contents from the extracellular fluid
-Sensitivity to changes in the extracellular fluid
-Structural support of the cell (depending on the cell)
Examstudy - Stuvia US
,-Regulation of exchange of materials between the cell and the extracellular
fluid
Quiz: Cholesterol
Ans: Contributes to fluidity and stability of cell membrane
Quiz: Proteins
Ans: lowers levels of lipids in the membrane
Quiz: Carbohydrates
Ans: Only found on the outer surface of the membrane
Quiz: Structure of phospholipid molecule
Ans: A negatively charged, polar, hydrophilic head and two fatty acid tails
that are uncharged and hydrophobic. One tail consists of saturated fats and
is straight whilst the other is unsaturated and bent
Quiz: Only _________ substances are able to pass the phospholipid
bilayer
Ans: Lipid soluble
Examstudy - Stuvia US
, Quiz: Water soluble molecules must pass the bilayer through ______
channels
Ans: integral protein
Quiz: glyco- =
Ans: carbo- = sugar
Quiz: Passive process
Ans: No ATP used by cell, is concentration dependent (high -> low
concentration until system reaches equilibrium)
Quiz: Active process
Ans: ATP use is required, not concentration dependent
Quiz: Diffusion
Ans: Substance moves from higher concentration to lower concentration by
way of kinetic (thermal) energy. A type of passive process
Quiz: Facilitated diffusion
Ans: Lipid-insoluble substances helped by membrane carrier proteins (like a
swinging door) down a concentration gradient. Passive process
Examstudy - Stuvia US
In today's fast-paced educational landscape, students need reliable resources to excel in their studies.
5.0
Biol 212 Exam 1 SDSU Questions with Detailed
Verified Answers (100% Correct Answers) /Already
Graded A+
Quiz: Cytology
Ans: the study of cells
Quiz: What can cells do?
Ans: 1. Concentrate needed molecules
2. Expel waste
3. Synthesize large molecules with complex functions
4. Generate, store, and use energy for metabolic purposes
5. Move
Quiz: Diseases usually begin at the _______ level
Ans: Cellular
Quiz: Germ/gametes
Ans: Sex cells, sperm & egg
Quiz: Somatic cell
Ans: Cells of the body
Sunday, 02 March 2025
,Quiz: Cytosol
Ans: Intracellular fluid (ICF)
Quiz: Cytoplasm
Ans: Made up of cytosol and organelles
Quiz: Extracellular fluid
Ans: Usually a watery fluid (such as interstitial fluid)
-It is the matrix of connective tissue
-Little intercellular space in some tissues
-Provides medium
Quiz: Plasma Membrane
Ans: -Surrounds every cell
-Separates cell contents from its surroundings (separates ICF from ECF)
-Controls movement of molecules into and out of cell (selectively permeable
surface)
Quiz: Functions of the plasma membrane
Ans: -Physical isolation of cell contents from the extracellular fluid
-Sensitivity to changes in the extracellular fluid
-Structural support of the cell (depending on the cell)
Examstudy - Stuvia US
,-Regulation of exchange of materials between the cell and the extracellular
fluid
Quiz: Cholesterol
Ans: Contributes to fluidity and stability of cell membrane
Quiz: Proteins
Ans: lowers levels of lipids in the membrane
Quiz: Carbohydrates
Ans: Only found on the outer surface of the membrane
Quiz: Structure of phospholipid molecule
Ans: A negatively charged, polar, hydrophilic head and two fatty acid tails
that are uncharged and hydrophobic. One tail consists of saturated fats and
is straight whilst the other is unsaturated and bent
Quiz: Only _________ substances are able to pass the phospholipid
bilayer
Ans: Lipid soluble
Examstudy - Stuvia US
, Quiz: Water soluble molecules must pass the bilayer through ______
channels
Ans: integral protein
Quiz: glyco- =
Ans: carbo- = sugar
Quiz: Passive process
Ans: No ATP used by cell, is concentration dependent (high -> low
concentration until system reaches equilibrium)
Quiz: Active process
Ans: ATP use is required, not concentration dependent
Quiz: Diffusion
Ans: Substance moves from higher concentration to lower concentration by
way of kinetic (thermal) energy. A type of passive process
Quiz: Facilitated diffusion
Ans: Lipid-insoluble substances helped by membrane carrier proteins (like a
swinging door) down a concentration gradient. Passive process
Examstudy - Stuvia US
