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APHY 101 FINAL EXAM COMPLETE REAL EXAM ACTUAL TEST QUESTIONS AND CORRECTVERIFIED SOLUTIONS (A NEW UPDATED VERSION) |ALREADY GRADED A+ (BRAND NEW!!)$20.49
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APHY 101 FINAL EXAM 2024-2025 COMPLETE REAL EXAM
ACTUAL TEST QUESTIONS AND CORRECTVERIFIED
SOLUTIONS (A NEW UPDATED VERSION) |ALREADY
GRADED A+ (BRAND NEW!!)
What is the difference between an organic molecule and an
inorganic molecule? - Answer-organic
What is the difference among isotonic, hypotonic and
hypertonic solutions? - Answer-A solution with the same
osmotic pressure as body fluids is called isotonic; one with
higher osmotic pressure than body fluids is hypertonic; one
with lower osmotic pressure is hypotonic.
What is a hypotonic solution? - Answer-the solution has a lower
solute concentration than the cell so water moves into the cell
causing plant cells to swell and animal cells to swell and burst
What is hypertonic solution? - Answer-The solution has a higher
solute concentration than the cell so water moves out of the
cell and into the solution causing the cell to plasmolyze
,Steps of the cell cycle - Answer-interphase, prophase,
metaphase, anaphase, telophase, cytokinesis
What are the two types of metabolic reactions? - Answer-
Anabolism and Catabolism
Anabolism - Answer-Small molecules are built up into larger
molecules, requiring energy
Catabolism - Answer-larger molecules are broken down into
smaller molecules, releasing energy
What happens when an enzyme substrate complex is formed? -
Answer-When the enzyme and substrate are joined, the
catalytic action of the enzyme converts the substrate to the
product (or products) of the reaction.
What is the active site on an enzyme? - Answer-Active sites on
the enzyme combine with the substrate and a reaction occurs.
Denaturation - Answer-the alteration of a protein shape
through some form of external stress (for example, by applying
,heat, acid or alkali), in such a way that it can no longer carry out
its cellular function.
What is ATP? - Answer-the primary source of energy for a cell
How do cells get the energy to make ATP? - Answer-By breaking
apart glucose molecules
What is aerobic respiration? What are the two stages? How
many ATP are produced? - Answer-Aerobic respiration is the
process of producing cellular energy involving oxygen. Cells
break down food in the mitochondria in a 2-step process. The
first step is glycolysis, and the second is the citric acid cycle. It
produces roughly 36 ATP.
What is glycolysis? How does it begin and what is produced at
the end? - Answer-The 6-carbon sugar glucose is broken down
in the cytosol into 2 ATP, 2 NADH, and 2 pyruvate molecules.
What is anaerobic respiration? How many ATP are produced?
Where in the cell does it take place? - Answer-Anaerobic
respiration is the process of producing cellular energy without
oxygen. Anaerobic respiration is a relatively fast reaction and
produces 2 ATP. Anaerobic reactions occur in the cytoplasm.
, What is the electron transport chain? - Answer-The electron
transport chain passes each electron along, gradually lowering
the electron's energy level and transferring that energy to ATP
synthase
What are the characteristics of DNA? - Answer-Double-
stranded DNA molecules twist to form a double helix consisting
of "sugar-phosphate rails" and bases pair to form the "rungs."
What are the 4 types the DNA molecule base can be? - Answer-
(A) adenine
(T) thymine
(C) cytosine
(G) guanine
What are the complementary base pairs for DNA? - Answer-A T
CG
Ribonucleic Acid (RNA) - Answer-Single-stranded molecules,
their nucleotides have ribose rather than deoxyribose sugar,
and uracil rather than thymine. Functions in protein synthesis.
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