BIO 105 LATEST EXAMS TEST PAPER QUESTIONS
AND ANSWERS SURE A+
✔✔secondary protein structure - ✔✔hydrogen bonding of the peptide backbone causes
the amino acids to fold into alpha helixes & beta pleated sheets.
✔✔tertiary protein structure - ✔✔3D structure of the protein
✔✔quaternary protein structure - ✔✔Binding of several protein subunits into a larger
protein
✔✔simple diffusion - ✔✔Movement of molecules from high to low concentration.
(Passive)
✔✔facilitated diffusion - ✔✔process of diffusion in which molecules pass across the
membrane through cell membrane channels down the concentration gradient
✔✔active transport - ✔✔Energy-requiring process that moves material across a cell
membrane against the concentration gradient
✔✔Endocytosis - ✔✔A process in which a cell engulfs extracellular material through an
inward folding of its plasma membrane.
, ✔✔What is osmosis? - ✔✔Diffusion of water from high to low concentration
✔✔Hypertonic solution - ✔✔Solute concentration is greater outside the cell than inside
the cell; cell shrinks
✔✔Isotonic solution - ✔✔Equal solute concentration inside and outside cell.
✔✔Hypotonic solution - ✔✔solute concentration is greater inside the cell than outside
the cell; cell swells
✔✔DNA is a double helix with a backbone made of - ✔✔Sugar, phosphate &
nucleotides
✔✔What are the 4 nucleotides in DNA? - ✔✔Adenine, Thymine, Guanine, Cytosine
✔✔Turning DNA into mRNA is known as? - ✔✔Transcription
✔✔Transcription occurs in the - ✔✔nucleus
✔✔3 steps of cellular respiration - ✔✔glycolysis, krebs cycle, electron transport chain
✔✔What is the goals of cellular respiration? - ✔✔Create ATP for the cell
✔✔Glycolysis starts with 1 molecule of? - ✔✔Glucose
✔✔If oxygen is present, glycolysis is followed by - ✔✔Krebs cycle
✔✔If oxygen is NOT present, glycolysis is followed by - ✔✔Anaerobic fermentation
✔✔Anaerobic fermentation produces 2 additional molecules of? - ✔✔Lactic acid
✔✔Simple epithelium - ✔✔Single layer of epithelial cells.
✔✔Psuedostratified epithelium - ✔✔Single layer cells attached to basement membrane
but appears falsely stratified
✔✔Stratified epithelium - ✔✔multiple layers of cells
✔✔Cells that are flat and thin are classified as - ✔✔squamous cells
✔✔Cells that are round or square are classified as - ✔✔Cuboidal cells
✔✔Cells that are rectangular are classified as - ✔✔Columnar cells
AND ANSWERS SURE A+
✔✔secondary protein structure - ✔✔hydrogen bonding of the peptide backbone causes
the amino acids to fold into alpha helixes & beta pleated sheets.
✔✔tertiary protein structure - ✔✔3D structure of the protein
✔✔quaternary protein structure - ✔✔Binding of several protein subunits into a larger
protein
✔✔simple diffusion - ✔✔Movement of molecules from high to low concentration.
(Passive)
✔✔facilitated diffusion - ✔✔process of diffusion in which molecules pass across the
membrane through cell membrane channels down the concentration gradient
✔✔active transport - ✔✔Energy-requiring process that moves material across a cell
membrane against the concentration gradient
✔✔Endocytosis - ✔✔A process in which a cell engulfs extracellular material through an
inward folding of its plasma membrane.
, ✔✔What is osmosis? - ✔✔Diffusion of water from high to low concentration
✔✔Hypertonic solution - ✔✔Solute concentration is greater outside the cell than inside
the cell; cell shrinks
✔✔Isotonic solution - ✔✔Equal solute concentration inside and outside cell.
✔✔Hypotonic solution - ✔✔solute concentration is greater inside the cell than outside
the cell; cell swells
✔✔DNA is a double helix with a backbone made of - ✔✔Sugar, phosphate &
nucleotides
✔✔What are the 4 nucleotides in DNA? - ✔✔Adenine, Thymine, Guanine, Cytosine
✔✔Turning DNA into mRNA is known as? - ✔✔Transcription
✔✔Transcription occurs in the - ✔✔nucleus
✔✔3 steps of cellular respiration - ✔✔glycolysis, krebs cycle, electron transport chain
✔✔What is the goals of cellular respiration? - ✔✔Create ATP for the cell
✔✔Glycolysis starts with 1 molecule of? - ✔✔Glucose
✔✔If oxygen is present, glycolysis is followed by - ✔✔Krebs cycle
✔✔If oxygen is NOT present, glycolysis is followed by - ✔✔Anaerobic fermentation
✔✔Anaerobic fermentation produces 2 additional molecules of? - ✔✔Lactic acid
✔✔Simple epithelium - ✔✔Single layer of epithelial cells.
✔✔Psuedostratified epithelium - ✔✔Single layer cells attached to basement membrane
but appears falsely stratified
✔✔Stratified epithelium - ✔✔multiple layers of cells
✔✔Cells that are flat and thin are classified as - ✔✔squamous cells
✔✔Cells that are round or square are classified as - ✔✔Cuboidal cells
✔✔Cells that are rectangular are classified as - ✔✔Columnar cells
