Bio 2nd Q Exam Question Preview (ID: 45546)

Chem Questions.[print questions]

What type of macromolecule has nitrogen and phosphate?
a) Nucleic Acid (DNA)
b) Lipids
c) Carbs
d) Proteins

What makes carbon so special?
a) only carbon can have covalent bonds
b) carbon can form quadruple bonds
c) only carbon can bond to oxygen and hydrogen
d) Carbon can bond to one another, make up to triple bonds, and form many structures

What element makes a molecule organic?
a) Carbon
b) Sodium
c) Oxygen
d) Helium

An electron has what type of charge?
a) positive
b) negative
c) neutral
d) radioactive

which 2 particle combinations would make a neutral atom?
a) 2 protons
b) an electron and a neutron
c) a proton and a neutron
d) a proton and an electron

What is found in the nucleus?
a) Electrons and neutrons
b) Protons and electrons
c) Protons and neutrons
d) Only protons

Mass number tells you how many_______ is in the nucleus
a) electrons and neutrons
b) Electrons and protons
c) protons and neutrons
d) Neutrons

Atomic number tells you how many_______an atom has
a) protons and electrons
b) protons
c) protons and neutrons
d) neutrons and electrons

one atom of oxygen and 2 atoms of hydrogen make up a molecule of....
a) Water
b) sodium
c) carbohydrate
d) hydrogen peroxide

Which of the following is a substance formed by the chemical joining of two or more elements in definite amounts?
a) isotope
b) compound
c) enzyme
d) atomic number

If an atom has 17 protons and 18 neutrons, its atomic number would be
a) 1
b) 18
c) 35
d) 17

Oxygen 16 has a mass number of 16. Oxygen 18 has a mass number of 18. How would you describe these two?
a) isotopes
b) two different elements
c) molecules
d) ions

What is the mass number of an atom with 5protons, 6 neutrons, and 5 electrons
a) 5
b) 6
c) 11
d) 16

What is found in the nucleus of an atom?
a) protons and neutrons
b) protons only
c) neutrons only
d) electrons only

What are found in the space surrounding the nucleus of an atom?
a) protons
b) electrons
c) neutrons
d) protons and neutrons

The three particles that make up atoms are
a) protons, neutrons, and isotopes.
b) neutrons, isotopes, and electrons.
c) positives, negatives, and neutrals.
d) protons, neutrons, and electrons.

What type of macromolecule has only nitrogen as an extra element
a) Nucleic acid
b) Carbs
c) Lipids
d) Protein

What type of macromolecule has way more carbon and hydrogen than oxygen?
a) Lipid
b) Carb
c) Nucleic acid
d) protein

What type of macromolecule has about the same number of carbon and oxygen
a) Carb
b) Lipid
c) protein
d) nucleic acid

What is the monomer of a protein?
a) fat
b) monosaccharide
c) amino acid
d) fatty acid and glycerol

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