Biology 1001 LSU Fall (Dr. Nita) Test 1
Questions and Answers.
Acidic solution has:
a. Equal concentration of H+ and OH ions
b. More of H+ than OH ions
c. Less of H+ than OH ions
d. None of the above - Answer More of H+ than OH ions
Protons are ________.
a. Present in atoms that carry positive charges
b. Present in atoms that carry neutral charges
c. Present in atoms that carry negative charges
d. None of the above - Answer Present in atoms that carry positive charges
Which of these can trigger the production of free radicals?
a. Alcohol
b. Smoke
c. Pollution
d. All of the above - Answer All of the above: alcohol, smoke, and pollution
DNA contains ...
a. A pentose sugar called ribose
b. A pentose sugar called deoxyribose
c. A hexose sugar called ribose
d. A hexose sugar called deoxyribose - Answer A pentose sugar called deoxyribose
A biological polymer is synthesized by
a. joining monomers by the removal of water by dehydration synthesis
b. Breaking down monomers by the removal of water in hydrolysis reaction
c. joining monomers by the removal of water by hydrolysis synthesis
d. all the above - Answer joining monomers by the removal of water by dehydration
synthesis
Eukaryotic cells are ______
, a. always multicellular
b. always unicellular
c. Some multicellular and some can be unicellular
d. None of the above - Answer Some multicellular and some can be unicellular
Which trace element is necessary for human body that is obtained from table salt?
a. Titanium
b. Oxygen
c. Iodine
d. Hydrogen - Answer Iodine
Oxygen in water are
a. Electron acceptors
b. Electron donors
c. Slightly negative in charge
d. Both a and c - Answer A and C: Electron acceptors and electron donors
Living organisms need oxygen to survive. Which statement below is true
a. Oxygen is major element needed by animals
b. Some bacteria do not need oxygen to survive, such as anaerobic bacteria
c. All viruses need oxygen
d. Only a and b are true - Answer A and B: Oxygen is major element needed by animals;
Some bacteria do not need oxygen to survive, such as anaerobic bacteria
Asexual reproduction in bacteria can occur by ____________.
a. DNA replication
b. Cytokinesis
c. Binary fission
d. Ionic bond formation - Answer Binary fission
Plants and Animals cells differ as
a. Both have a cell wall
b. Both do not have cell membrane
c. Plant cells have cell wall and cell membrane and animal cells have only cell membrane
Questions and Answers.
Acidic solution has:
a. Equal concentration of H+ and OH ions
b. More of H+ than OH ions
c. Less of H+ than OH ions
d. None of the above - Answer More of H+ than OH ions
Protons are ________.
a. Present in atoms that carry positive charges
b. Present in atoms that carry neutral charges
c. Present in atoms that carry negative charges
d. None of the above - Answer Present in atoms that carry positive charges
Which of these can trigger the production of free radicals?
a. Alcohol
b. Smoke
c. Pollution
d. All of the above - Answer All of the above: alcohol, smoke, and pollution
DNA contains ...
a. A pentose sugar called ribose
b. A pentose sugar called deoxyribose
c. A hexose sugar called ribose
d. A hexose sugar called deoxyribose - Answer A pentose sugar called deoxyribose
A biological polymer is synthesized by
a. joining monomers by the removal of water by dehydration synthesis
b. Breaking down monomers by the removal of water in hydrolysis reaction
c. joining monomers by the removal of water by hydrolysis synthesis
d. all the above - Answer joining monomers by the removal of water by dehydration
synthesis
Eukaryotic cells are ______
, a. always multicellular
b. always unicellular
c. Some multicellular and some can be unicellular
d. None of the above - Answer Some multicellular and some can be unicellular
Which trace element is necessary for human body that is obtained from table salt?
a. Titanium
b. Oxygen
c. Iodine
d. Hydrogen - Answer Iodine
Oxygen in water are
a. Electron acceptors
b. Electron donors
c. Slightly negative in charge
d. Both a and c - Answer A and C: Electron acceptors and electron donors
Living organisms need oxygen to survive. Which statement below is true
a. Oxygen is major element needed by animals
b. Some bacteria do not need oxygen to survive, such as anaerobic bacteria
c. All viruses need oxygen
d. Only a and b are true - Answer A and B: Oxygen is major element needed by animals;
Some bacteria do not need oxygen to survive, such as anaerobic bacteria
Asexual reproduction in bacteria can occur by ____________.
a. DNA replication
b. Cytokinesis
c. Binary fission
d. Ionic bond formation - Answer Binary fission
Plants and Animals cells differ as
a. Both have a cell wall
b. Both do not have cell membrane
c. Plant cells have cell wall and cell membrane and animal cells have only cell membrane
