MSN 570 Week 1 Questions and
Answers Latest 2026
Chromosomes Ans: a threadlike structure of nucleic
acids and protein found in the nucleus of most living
cells, carrying genetic information in the form of genes.
Chromatin Ans: DNA is combined and wrapped around
histone proteins
active transport Ans: the movement of ions or molecules
across a cell membrane into a region of higher
concentration, assisted by enzymes and requiring energy.
Diffusion Ans: Movement of molecules from an area of
higher concentration to an area of lower concentration.
Osmosis Ans: diffusion of water across a selectively
permeable membrane
Endocystosis Ans: the process during which a cell takes
in a substance by surrounding it with the cell membrane
Phagocytosis Ans: Cell eating
Which substrate-level energy form is produced as a result
of the reaction that converts succinyl-CoA to succinate?
Ans: GTP
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Which is true regarding regulation of glucogenesis? Ans:
Upregulated by Glucagon and Cortisol
During glycolysis what substrate is a product of
glyceraldehyde-3-phosphate dehydrogenase (GAPDH)?
Ans: 1,3-biphosphoglycerate
What happens in Anaphase I? Ans: Spindle microtubules
from centrioles split pairs
Which mitochondrial enzymes is responsible for
converting pyruvate into oxaloacetate? Ans: Pyruvate
Carboxylase
Which check point in cell cycle phase is best known for
final chromosomal inetegrity? Ans: G2 Check
What happens in Prophase I (Meiosis I) Ans: Spindle
Apparatus forms
Alpha-Ketoglutarate undergoes an oxidation reach which
produces ___________ molecules? Ans: NADH
During glycolysis, which substrate is a product of
phosphofructokinase-1 (PFK-1)? Ans: Fructose-1,6
biphosphate
How many NADH molecules does the Krebs cycle yield
per molecule of glucose? Ans: 6 NADH
What happens in Metaphase I (Meiosis 1) Ans: Spindle
Fibers attach to centromere
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