BIO 315 EXAM 1 QUESTIONS AND ANSWERS
Correct
Incorrect
1 of 71
Term
Can you suggest why fibroin assumes a pleated sheet structure,
whereas -keratin exists as an helix and even reverts spontaneously to
a helical shape when it has been stretched artificially?
Give this one a try later!
cytological
B-
The active site of enzymes is composed of amino acids that are not necessarily
next to each other in the polypeptide before it folds.
Fibroin consists mainly of the smallest amino acids, so it can accommodate
the constraints of a pleated sheet. Keratin has most of the largest amino
acids present, and the distance between bulky R groups is maximized
when these protrude from a twisted helical shape.
, Electron microscopy is capable of much greater resolution and hence much
higher useful magnification.
Don't know?
2 of 71
Term
Each of the following is a function of membranes except
Give this one a try later!
Phospholipids are not major
information storage
constituents of membrane structure
Water has a high specific heat.
Purines have a double-ringed Water has a high surface tension.
structure Water has a high heat of
vaporization
Don't know?
3 of 71
Term
At what level of protein structure do the chains of amino acids fold
into an -helical structure?
Give this one a try later!
, secondary confocal microscopy
secondary structure tertiary
Don't know?
4 of 71
Definition
R group
Give this one a try later!
The chemical nature of each
amino acid is determined by
The components of a nucleotide are
which of the following
groups?
Haeckel postulates that the nucleus Fatty acids are _____ , and they
is responsible for heredity (1868). function in the cell as ____ _.
Don't know?
5 of 71
Term
Fatty acids are ________, and they function in the cell as _____ _.
, Give this one a try later!
steroid; is a component of
Electron microscopy is capable of
eukaryotic membranes and is the
much greater resolution and hence
basis for many animal and plant
much higher useful magnification.
hormones
long, unbranched
It provides a good barrier between hydrocarbon chains with a
the inside and outside of the cell. carboxyl group at one end;
building blocks for other lipids
Don't know?
6 of 71
Term
At what level of protein structure do -sheets of amino acids and -
helices, located at a distance from each other along the length of a
polypeptide chain, come together to form a globular protein?
Give this one a try later!
tertiary genetics
primary biochemical
Don't know?
7 of 71
Correct
Incorrect
1 of 71
Term
Can you suggest why fibroin assumes a pleated sheet structure,
whereas -keratin exists as an helix and even reverts spontaneously to
a helical shape when it has been stretched artificially?
Give this one a try later!
cytological
B-
The active site of enzymes is composed of amino acids that are not necessarily
next to each other in the polypeptide before it folds.
Fibroin consists mainly of the smallest amino acids, so it can accommodate
the constraints of a pleated sheet. Keratin has most of the largest amino
acids present, and the distance between bulky R groups is maximized
when these protrude from a twisted helical shape.
, Electron microscopy is capable of much greater resolution and hence much
higher useful magnification.
Don't know?
2 of 71
Term
Each of the following is a function of membranes except
Give this one a try later!
Phospholipids are not major
information storage
constituents of membrane structure
Water has a high specific heat.
Purines have a double-ringed Water has a high surface tension.
structure Water has a high heat of
vaporization
Don't know?
3 of 71
Term
At what level of protein structure do the chains of amino acids fold
into an -helical structure?
Give this one a try later!
, secondary confocal microscopy
secondary structure tertiary
Don't know?
4 of 71
Definition
R group
Give this one a try later!
The chemical nature of each
amino acid is determined by
The components of a nucleotide are
which of the following
groups?
Haeckel postulates that the nucleus Fatty acids are _____ , and they
is responsible for heredity (1868). function in the cell as ____ _.
Don't know?
5 of 71
Term
Fatty acids are ________, and they function in the cell as _____ _.
, Give this one a try later!
steroid; is a component of
Electron microscopy is capable of
eukaryotic membranes and is the
much greater resolution and hence
basis for many animal and plant
much higher useful magnification.
hormones
long, unbranched
It provides a good barrier between hydrocarbon chains with a
the inside and outside of the cell. carboxyl group at one end;
building blocks for other lipids
Don't know?
6 of 71
Term
At what level of protein structure do -sheets of amino acids and -
helices, located at a distance from each other along the length of a
polypeptide chain, come together to form a globular protein?
Give this one a try later!
tertiary genetics
primary biochemical
Don't know?
7 of 71
