MSN 570 Week 1 Questions with Correct
Answers | Updated (100% Correct Answers)
Chromosomes Answer: 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 Answer: DNA is combined and wrapped around histone
proteins
active transport Answer: the movement of ions or molecules across
a cell membrane into a region of higher concentration, assisted by
enzymes and requiring energy.
Diffusion Answer: Movement of molecules from an area of higher
concentration to an area of lower concentration.
Osmosis Answer: diffusion of water across a selectively permeable
membrane
Endocystosis Answer: the process during which a cell takes in a
substance by surrounding it with the cell membrane
Phagocytosis Answer: Cell eating
Which substrate-level energy form is produced as a result of the
reaction that converts succinyl-CoA to succinate? Answer: GTP
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,2
Which is true regarding regulation of glucogenesis? Answer:
Upregulated by Glucagon and Cortisol
During glycolysis what substrate is a product of glyceraldehyde-3-
phosphate dehydrogenase (GAPDH)? Answer: 1,3-
biphosphoglycerate
What happens in Anaphase I? Answer: Spindle microtubules from
centrioles split pairs
Which mitochondrial enzymes is responsible for converting pyruvate
into oxaloacetate? Answer: Pyruvate Carboxylase
Which check point in cell cycle phase is best known for final
chromosomal inetegrity? Answer: G2 Check
What happens in Prophase I (Meiosis I) Answer: Spindle Apparatus
forms
Alpha-Ketoglutarate undergoes an oxidation reach which produces
___________ molecules? Answer: NADH
During glycolysis, which substrate is a product of
phosphofructokinase-1 (PFK-1)? Answer: Fructose-1,6 biphosphate
How many NADH molecules does the Krebs cycle yield per
molecule of glucose? Answer: 6 NADH
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, 3
What happens in Metaphase I (Meiosis 1) Answer: Spindle Fibers
attach to centromere
Which chromosome components is/are most likely to consist of at
least 8 histones? Answer: Nucleosomes
What is the name of the process that converts Pyruvate into Acetyl-
CoA? Answer: Pyruvate Decarboxylation
What is characterized by the production of ATP from ADP by direct
transfer of a high energy phosphate group form a phosphorylated
intermediate metabolic compound? (Anaerobic Respiration) Answer:
Substrate level ATP phosphorylation
What cytosolic enzyme produces PEP from oxaloacetate? Answer:
Phosphoenolpyruvate (PEP) Carboxykinase
Product of decarboxylation of Alpha-Ketoglutarate? Answer:
Succinyl-CoA
Characteristics most likely associated with Anaphase? Answer:
Spindle microtubules from centrioles split pairs
Dihydroxyacetone-P and glyceraldehyde may both be converted
into _________? Answer: Glyceraldehyde-3-Phosphate
What enzyme is upregulated by citrate and down regulated by
AMP? Answer: Fructose-1,6 biphosphatase
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