BIO 250 EXAM 1 PREP QUESTIONS AND
VERIFIED ANSWERS; 100% CORRECT; GRADE A
A mature red blood cell lacks a nucleus; therefore it - correct answer-
cannot make new proteins and will be worn out within a few months
A process that requires cellular energy to move a substance against its
concentration gradient is called - correct answer- active transport
A solution that contains a lower osmotic pressure than the cytoplasm of
a cell is called - correct answer- hypotonic
A type of intercellular junction that stops materials from crossing an
epithelium between cells is called a(n) - correct answer- tight
junction
By weight, which element is the second most abundant in the human
body? - correct answer- carbon
Carbohydrates, lipids, and proteins are classified as - correct answer-
organic molecules
centriole - correct answer- aids the formation of the spindle
apparatus
, cytosol - correct answer- liquid in cell
endocytosis is a - correct answer- method for transporting substance
into the cell
endoplasmic reticulum - correct answer- synthesizing molecules
Forms tendons and ligaments - correct answer- dense regular
connective tissue
hemolysis may occur when a blood cell is place into a(n) _______
solution - correct answer- hypotonic
How would the lack of a cofactor for an enzyme affect that enzyme's
function? - correct answer- it would not be able to function
Identification "tags" for the cell - correct answer- A
Identify the correct statement regarding the process of denaturation -
correct answer- it is the loss of protein structure
Identify the highlighted structure - correct answer- adipocytes
VERIFIED ANSWERS; 100% CORRECT; GRADE A
A mature red blood cell lacks a nucleus; therefore it - correct answer-
cannot make new proteins and will be worn out within a few months
A process that requires cellular energy to move a substance against its
concentration gradient is called - correct answer- active transport
A solution that contains a lower osmotic pressure than the cytoplasm of
a cell is called - correct answer- hypotonic
A type of intercellular junction that stops materials from crossing an
epithelium between cells is called a(n) - correct answer- tight
junction
By weight, which element is the second most abundant in the human
body? - correct answer- carbon
Carbohydrates, lipids, and proteins are classified as - correct answer-
organic molecules
centriole - correct answer- aids the formation of the spindle
apparatus
, cytosol - correct answer- liquid in cell
endocytosis is a - correct answer- method for transporting substance
into the cell
endoplasmic reticulum - correct answer- synthesizing molecules
Forms tendons and ligaments - correct answer- dense regular
connective tissue
hemolysis may occur when a blood cell is place into a(n) _______
solution - correct answer- hypotonic
How would the lack of a cofactor for an enzyme affect that enzyme's
function? - correct answer- it would not be able to function
Identification "tags" for the cell - correct answer- A
Identify the correct statement regarding the process of denaturation -
correct answer- it is the loss of protein structure
Identify the highlighted structure - correct answer- adipocytes
