RIO BIO 156 MIDTERM EXAM NEWEST ACTUAL COMPLETE
100 REAL EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+/2025/2026.
A(n) __________ forms when two atoms share electrons. -
ANSWER-covalent bond
Which one of the following is true about the ATP molecule? -
ANSWER-It contains a nitrogenous base molecule called adenine
When an enzyme catalyzes a reaction, - ANSWER-it lowers the
activation energy of the reaction
Which of the following is a coenzyme? - ANSWER-Vitamin B6
Bacterial production of the enzymes needed for the synthesis of
the amino acid tryptophan declines with increasing levels of
tryptophan and increases as tryptophan levels decline. This is an
example of: - ANSWER-Feedback Inhibition
, The second law of thermodynamics states that____________. -
ANSWER-Energy tends to become increasingly dispersed and
unusable.
What helps to digest worn-out or damaged organelles, recycle
materials within the cell, fuse with food vacuoles to expose
nutrients to lysosomal enzymes, destroy harmful bacteria
engulfed by white blood cells. - ANSWER-Lysosomes
What prevent cells from bursting as a result of the influx of
excess water? - ANSWER-Contractile vacuoles
Cilia differ from flagella in that - ANSWER-Cilia are typically more
numerous and shorter than flagella
Plants with rigid cell walls are unable to do which process? –
ANSWER-Phagocytosis
Which of the following cell structures is not associated with the
breakdown of harmful substances or substances that are no
longer needed by the cell? - ANSWER-Mitochondria
Small, nonpolar, hydrophobic molecules such as fatty acids -
ANSWER-easily pass through a membrane's lipid bilayer.
100 REAL EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+/2025/2026.
A(n) __________ forms when two atoms share electrons. -
ANSWER-covalent bond
Which one of the following is true about the ATP molecule? -
ANSWER-It contains a nitrogenous base molecule called adenine
When an enzyme catalyzes a reaction, - ANSWER-it lowers the
activation energy of the reaction
Which of the following is a coenzyme? - ANSWER-Vitamin B6
Bacterial production of the enzymes needed for the synthesis of
the amino acid tryptophan declines with increasing levels of
tryptophan and increases as tryptophan levels decline. This is an
example of: - ANSWER-Feedback Inhibition
, The second law of thermodynamics states that____________. -
ANSWER-Energy tends to become increasingly dispersed and
unusable.
What helps to digest worn-out or damaged organelles, recycle
materials within the cell, fuse with food vacuoles to expose
nutrients to lysosomal enzymes, destroy harmful bacteria
engulfed by white blood cells. - ANSWER-Lysosomes
What prevent cells from bursting as a result of the influx of
excess water? - ANSWER-Contractile vacuoles
Cilia differ from flagella in that - ANSWER-Cilia are typically more
numerous and shorter than flagella
Plants with rigid cell walls are unable to do which process? –
ANSWER-Phagocytosis
Which of the following cell structures is not associated with the
breakdown of harmful substances or substances that are no
longer needed by the cell? - ANSWER-Mitochondria
Small, nonpolar, hydrophobic molecules such as fatty acids -
ANSWER-easily pass through a membrane's lipid bilayer.
