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ASU BIO 181 Exam 1 |Questions with 100% correct Answers
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ASU BIO 181 Exam 1 |Questions with 100%correct Answers
amino acids can be largely subdivided into groups. what are the two groups - ✔️✔️hydrophobic
and hydrophlic
what are the orphaned organelles orphaned from? - ✔️✔️they are mitochrondria and chloroplast
and they orphaned from the endomembrane system
what is the difference between a single pass transmembrane protein and a 7 pass
transmembrane protein? - ✔️✔️single is singular protein that passes once through the bilayer
and cannot create ion channel. a 7 passes through the bilayer 7 times creating channels for ion
passage.
for protein to enter the endoplasmic reticulum as part of the endoplasmic reticulum's lumen or
part of the endoplasmic reticulum membrane: - ✔️✔️a ribosome binds to the mRNA and a short
stretch of protein is synthesized that contains a signal sequence.
we are made up of ____ percent water - ✔️✔️50-70
what is the difference between a triglyceride and a phospholipid? - ✔️✔️triglyceride has 3 fatty
acids and phospholipid has 2
T/F the ER is contiguous with the nuclear envelope - ✔️✔️true
what are the functions of a membrane? - ✔️✔️cell protection and controlling cell movement
T/F its a simple matter (ie thermodynamically) for vesicle to form from the endoplasmic
reticulum. - ✔️✔️false
, is cholesterol good or bad to have in biological membranes - ✔️✔️good
the plasma membrane gets new lipids from - ✔️✔️none of the above
consider the geography of cells. Actin filaments are present in the cell's ____ and the
microtubules are present in the cell's - ✔️✔️cortex
T/F chromosomes are made out of Euchromatin - ✔️✔️false
Where is the histone H1 found? - ✔️✔️they are found in eukaryotic cell nuclei
T/F the diameter of an intermediate filament is 25 nm. - ✔️✔️false
T/F the actin filament system is present in the nucleus - ✔️✔️false
T/F to get into the nucleus a component has to have the correct signal sequence and pass
through a nuclear pore. - ✔️✔️True
which cytoskeleton filament system lines the inside of the nucleus to protect it? -
✔️✔️microtublues
T/F cilia and microvilli contain a similar number of parallel actin filaments - ✔️✔️false
T/F naked DNA does not exist in nature of parallel actin filaments - ✔️✔️false
T/F naked DNA does not exist in Nature but scientists can make naked DNA in a test tube. -
✔️✔️true
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