BIO 160 FINAL Exam Questions and
Answers 100% Pass
In a single water molecule, oxygen is held to two hydrogens by - ANS covalent bonds
Extra ____ make the radioactive isotope carbon¹⁴ unstable - ANS neutrons
The two strands of a double helix of DNA are held together by - ANS hydrogen bonds
The ____ of a solution is a way of expressing the concentration of hydrogen ions - ANS pH
Insulin is a protein that is produced by pancreatic cells and secreted into the bloodstream.
What is the path of insulin, from its production to its exit from the cell? - ANS rough ER,
transport vesicle, golgi, transport vesicle, plasma membrane
All cells on earth
a. are enclosed by a plasma membrane
b. have DNA as the genetic material
c. have cytoplasm
d. have ribosomes
e. all of the above - ANS all of the above
1
, ©JASONMcCONNELL 2025 ALL RIGHTS RESERVED
The best definition for hypothesis is - ANS a tentative explanation to explain an observation
All the organisms of a single species found in an ecosystem are described as a -
ANS population
Peptide bonds are found in - ANS proteins
The smallest unit that shows ALL the features of life is the - ANS cell
Eukaryotic cells are much bigger than - ANS prokaryotic cells
____ are a diverse group of macromolecules that have one main property in common; they are
all relatively hydrophobic - ANS lipids
The plasma membranen is composed of phospholipids and ____ - ANS proteins
Plant and animal cells have many things in common, but plant cells have some structure that
the animal cells do not have. These include rigid cell _____ and the photosynthetic organelles
called ____ - ANS walls; chloroplasts
DNA is a polymer made up of monomers called ____ - ANS nucleotides
Polypeptides are polymers made up of monomers called - ANS amino acids
The only organelle shared by prokaryotic and eukaryotic cells is the - ANS ribosome
T/F
The cytoskeleton is involved in giving the cell structure and involved in movement - ANS true
2