Bio 105 Exam 1 Prep Questions and
Answers Graded A+
A _______ bond shares the electrons between the two elements. - ANSWER-Covalent
A hydrophilic molecule... - ANSWER-Will attract to polar molecule
A monosaccharide is to a carbohydrate as... - ANSWER-An amino acid to a protein
A peptide bond is... - ANSWER-A covalent bond
A prokaryotic cell has all of the following EXCEPT:
ribosomes, cell wall, mitochondria, DNA - ANSWER-mitochondria
A....bond happens when electrons are transferred from one atom to another. -
ANSWER-Ionic bond
According to the octet rule, an atom is stable with how many electrons in the outer
shell? - ANSWER-8
An elements atomic mass is determined by? - ANSWER-The number of protons and
neutrons in an atom
Animals have all of the following except:
mitochondria, vacuole, cytoskeleton, cell membrane - ANSWER-vacuole
Biology is the study of? - ANSWER-living things
Circular DNA is found in... - ANSWER-bacteria
DNA consists of all the following EXCEPT:
uracil, guanine, adenine, cytosine - ANSWER-uracil
Gravity is an example of this. - ANSWER-a scientific law
If a fat is said to be saturated what is true of it? - ANSWER-It has no double bond
If a ribosome is not attached to the ER, it is said to be? - ANSWER-free
If a solution has a lot of OH- in it, is it acidic or basic? - ANSWER-basic
If the most common form of Carbon has 6 protons, 6 neutrons, and 6 electrons. Which
elements would be an Isotope of carbon? - ANSWER-An atom with 6 protons, 8
neutrons, and 6 electrons
, In what type of reaction is water used to break the covalent bonds between molecules?
- ANSWER-Hydrolysis reaction
Multiple water molecules are held together by what type of bond? - ANSWER-Hydrogen
bonds
Prokaryotic cells differ from eukaryotic cells because prokaryotic cells contain a ? -
ANSWER-Nucleoid
The alpha helix and beta represent which level of protein structure? - ANSWER-
Secondary structure
The backbone of DNA forms ________ bonds and the bases form ________ bonds. -
ANSWER-Covalent, hydrogen
The four main categories of bio-molecules are? - ANSWER-Proteins, Nucleic acids,
Lipids, Carbohydrates
The organelle that is responsible for protein modification and final packaging is? -
ANSWER-Golgi apparatus
Vesicles are... - ANSWER-small membrane sacs
What determines the atomic mass of an atom? - ANSWER-protons and neutrons
What determines the types of chemical reactions that an atom participates in? -
ANSWER-The number of electrons in the outermost shell
What do eukaryotes have that prokaryotes don't? - ANSWER-membrane bound
organelles
What does pH measure? - ANSWER-the amount of H+ in a solution
What domain are prokaryotic cells found? - ANSWER-Bacteria and Archaea
What is a substance that cannot be broken into substances with different properties? -
ANSWER-An element
What is cohesion? - ANSWER-Water sticking to water
What is different between isotopes of the same element? - ANSWER-number of
electrons
What is found in plant cells but not animal cells? - ANSWER-large central vacuole
Answers Graded A+
A _______ bond shares the electrons between the two elements. - ANSWER-Covalent
A hydrophilic molecule... - ANSWER-Will attract to polar molecule
A monosaccharide is to a carbohydrate as... - ANSWER-An amino acid to a protein
A peptide bond is... - ANSWER-A covalent bond
A prokaryotic cell has all of the following EXCEPT:
ribosomes, cell wall, mitochondria, DNA - ANSWER-mitochondria
A....bond happens when electrons are transferred from one atom to another. -
ANSWER-Ionic bond
According to the octet rule, an atom is stable with how many electrons in the outer
shell? - ANSWER-8
An elements atomic mass is determined by? - ANSWER-The number of protons and
neutrons in an atom
Animals have all of the following except:
mitochondria, vacuole, cytoskeleton, cell membrane - ANSWER-vacuole
Biology is the study of? - ANSWER-living things
Circular DNA is found in... - ANSWER-bacteria
DNA consists of all the following EXCEPT:
uracil, guanine, adenine, cytosine - ANSWER-uracil
Gravity is an example of this. - ANSWER-a scientific law
If a fat is said to be saturated what is true of it? - ANSWER-It has no double bond
If a ribosome is not attached to the ER, it is said to be? - ANSWER-free
If a solution has a lot of OH- in it, is it acidic or basic? - ANSWER-basic
If the most common form of Carbon has 6 protons, 6 neutrons, and 6 electrons. Which
elements would be an Isotope of carbon? - ANSWER-An atom with 6 protons, 8
neutrons, and 6 electrons
, In what type of reaction is water used to break the covalent bonds between molecules?
- ANSWER-Hydrolysis reaction
Multiple water molecules are held together by what type of bond? - ANSWER-Hydrogen
bonds
Prokaryotic cells differ from eukaryotic cells because prokaryotic cells contain a ? -
ANSWER-Nucleoid
The alpha helix and beta represent which level of protein structure? - ANSWER-
Secondary structure
The backbone of DNA forms ________ bonds and the bases form ________ bonds. -
ANSWER-Covalent, hydrogen
The four main categories of bio-molecules are? - ANSWER-Proteins, Nucleic acids,
Lipids, Carbohydrates
The organelle that is responsible for protein modification and final packaging is? -
ANSWER-Golgi apparatus
Vesicles are... - ANSWER-small membrane sacs
What determines the atomic mass of an atom? - ANSWER-protons and neutrons
What determines the types of chemical reactions that an atom participates in? -
ANSWER-The number of electrons in the outermost shell
What do eukaryotes have that prokaryotes don't? - ANSWER-membrane bound
organelles
What does pH measure? - ANSWER-the amount of H+ in a solution
What domain are prokaryotic cells found? - ANSWER-Bacteria and Archaea
What is a substance that cannot be broken into substances with different properties? -
ANSWER-An element
What is cohesion? - ANSWER-Water sticking to water
What is different between isotopes of the same element? - ANSWER-number of
electrons
What is found in plant cells but not animal cells? - ANSWER-large central vacuole
