False
True or False: The smallest biological unit of life is the molecule.
False
At a generalized level, all cells are comprised of what?
Macromolecules
A student may also answer: Proteins, Lipids, Nucleic acids and Polysaccharides but they must answer with a
fully correct.
Proteins are formed from various combinations of _______ of which there are ______ known forms.
1. Amino acids
2. 20
How many amino acids are classified as being essential amino acids?
9
,The plasma membrane (select all that are true):
A. Restricts movement of materials in and out of the cell
B. Is often a triple layer comprised of lipids
C. Prevents essential nutrients from escaping
D. Contains hydrophobic tails pointing outward
A;C
Complete the following DNA strand, and indicate how many bonds are formed for each complementa
3' GGTCATCG 5'
5' CC _____AGC 3'
3' GGTCATCG 5'
5' CCAGTAGC 3'
There are 2 bonds formed between A and T, and 3 bonds between G and C.
True of False: The genetic material within a prokaryotic cell is contained within a membrane-enclosed
False
How many carbon atoms are present in the monosaccharide glucose?
, 6
Describe the 4 basic bacterial morphologies.
Coccus (round/spherical), bacillus (rod), vibrio (curved rod) or spirillum (spiral/corkscrew).
True or False: Archaea, a eukaryotic class of microorganisms, is capable of surviving harsh environm
False
Which of the following microorganisms are considered to be Eukarya? Select all that apply.
Animalia
Plantae
Fungi
Protista
All of them
Microorganisms classified as _________ obtain most of their energy by converting light energy into c
energy.
Plantae