FNDH 620 exam 1 with verified correct
answers
What percentage of elements composes the human body? - correct answer-63% Oxygen 18% Carbon 9%
Hydrogen 3% Nitrogen
What system involves the muscles and uses majority of the protein consumed? - correct answer-
Muscular system
what system includes the brain, spinal cord, nerves? - correct answer-Nervous
Which body system is responsible for taking in / producing organic compounds
necessary for energy, growth and
develop? includes the mouth, teeth, salivary glands, tongue, pharynx, esophagus, stomach, small
intestine, large intestine, rectum, anal canal, liver, gallbladder, and pancreas - correct answer-digestive
what body system includes the kidneys, ureters, urinary bladder, urethra, and excretes waste the body
doesn't need like ammonia? - correct answer-urniary
dna synthesis - correct answer-proliferation
cell division in which the nucleus divides into nuclei containing the same number of chromosomes -
correct answer-mitosis
cell acquire specific 'type'
stem cells: body has cell same DNA. starts from stem cells then changes into many different specific
organ cells - correct answer-differentiation
programmed cell death
cancer cells do not have this - correct answer-apoptosis
,What are the four stages of the typical cell cycle? - correct answer-G1, S, G2, M
what checkpoint checks for cell size, nutrients, growth factors, and DNA damage?
can cause apoptosis or correction to imperfect cells
has specific proteins to complete checkpoint - correct answer-G1 checkpoint
What phase of the cell cycle creates the DNA for the cells? - correct answer-S phase
which checkpoint of the cell cycle checks for cell size and DNA replication?
can cause apoptosis or correction to occur to imperfect cells
has specific proteins to complete checkpoint - correct answer-G2 checkpoint
part of eukaryotic cell division during which the cell nucleus divides. comes after G2 phase and before
G1 Phase starts again - correct answer-Mitosis
What checkpoint is the one that checks for chromosome attachment to the spindle in order to ensure
there are little to no mutations occuring during the final stages of the cell cycle? - correct answer-spindle
assembly checkpoint
helps detect cell cycle
uses DNA contents to detect density of cells and what stage they are in - correct answer-flow cytometry
holds cells in between G2 phase and mitosis phase in order to ensure apoptosis occurs for mutated or
incorrect cells - correct answer-cell cycle rest
contains digestive enzymes that break up proteins, lipids, and nucleic acids. they remove and recycle
waste products - correct answer-lysosome
organelle that produce most of the energy (ATP) used by cells - correct answer-mitochondrion
, gel-like substance inside cells. contains cell organelles, proteins, electrolytes, and other molecules -
correct answer-cytosol
a series of membrane sacs that process and package proteins after they leave the rough endoplasmic
reticulum - correct answer-golgi apparatus
contains the DNA in the cell. molecules of DNA provided coded instructions used for protein synthesis -
correct answer-nucleus
phospholipid bilayer that surrounds a cell that contains embedded proteins, carbohydrates, and lipids.
prevents passage of water soluble components - correct answer-plasma membrane
act as receptors sensitive to external stimuli and channels that regulate the movement of substances
into and out of the cell - correct answer-membrane proteins
a membrane with pores that makes communication possible between the nucleus and the cytoplasmic
matrix - correct answer-nuclear membrane
region of the endoplasmic reticulum involved in lipid synthesis.
does not have ribosomes and are not involved in protein synthesis - correct answer-smooth
endoplasmic reticulum
provides community between the nuclear envelope, the Golgi apparatus, and the plasma membrane -
correct answer-endoplasmic reticulum
the organelle that serves as the digestive system in the cell is the ____________ - correct answer-
lysosome
the lipid bilayer is composed of a __________ outside and a ___________ inside - correct answer-
hydrophilic, hydrophobic
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