Chapter 2 Microbiology

Which of the following statements about the atom 12C6 is FALSE

Using the information in Table 2.1, calculate the molecular weight of ethenol,C2H5OH

Antacids nutalize acid by the follwoing reaction. Identify the salt in the following equation.

Which of the following statements is FALSE?

Which of the following is the type of bond holding k+ and I- in KI

Which of the following is the type of bond between molecules of water in a beaker of water?

What is the type of bond holding hydrogen and oxygen atoms in H2O molecule?

Identify the following reaction Glucose + Fructose --> Sucrose + water

Identify the following reaction: Lactose + H2O --> Glucose + Galactose

Identify the following reaction: HCl + NaHCO3 --> NaCl + H2CO3

arrows back and forth

Which type of molecule contains the alcohol glycerol

Which type of molecule is composed of (CH2O) units

Which type of molecule contains NH2 groups

Which type of molecule NEVER contains a phosphate group?

Based upon the valence numbers of the elements Magnesium (2) and hydrogen (1), predict how many covalent bonds would form between these atoms to achieve the full complement of electrons in the outermost energy shells.

Using the information in Table 2.1 calculate the number of moles in 92 grams of ethanol

Which of the following statements regarding protein structure is FALSE

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False reactions

What is the type of the bond between the hyfrogen of one molecule and the nitrogen of another molecule

What is the type of bond between carbon, hydrogen, and oxygen atoms in organic molecules.

What is the type of bond between ions in salt?

A scientist wants to preform a test that will indicate whether a nucleic acid sample is composed of the RNA or DNA. Testing for the presence of which following is most appropriate in this situation?

If you viewed one single protein using microscope, you would observe multiple ______ structures.

Two antiparallel strands of DNA combine to form a double helix. The specific interactions that permit this phenomenon occur by way ____ bonds between _____.

Structurally, ATP is most like which type of molecule?

What do genes consist of?

What molecule is composed of a chain of amino acids?

Which are the primary molecules making up plasm membranes in cells?

The antimicrobial drug imidazole inhibits sterol synthesis. This would most likely interfere with

In Figure 2.1, which is an alcohol

Which compound in Figure 2.1 is an ester?

Which compound in Figure 2.1 is an organic acid

Archaea differ from bacteria in the composition of the cell membrane lipids. Archaea have ether-bonded lipids, shown in part _____ of Figure 2.2, and bacteria have ester-bonded lipids, shown in part ____ of Figure 2.2.

Most amino acids found in cells demonstrate what type of chirality?

What kind of bond is at the arrow in Figure 2.3?

An E. coli culture that has been growing at 37 c is moved to 25 c. Which of the following changes must be made in its plasma membrane?

Radioisotopes are frequently used to label to molecules in a cell. The fate of atoms and molecules in a cell can then be followed. Assume Saccharomyces cerevisiane is grown in a nutrient medium containing the radioisotope 35 S. After a 48 hour incubation, 35 S would most likely be found in the S. cerevisae's.

Radioisotopes are frequently used to label molecules in a cell. The fate of atoms and molecules in a cell can then be followed. Assume Saccharomyces cervisaie is grown in a nutrient medium containing the radiosotope 32P. After a 48 hour incubation, the majority of the 32 Pwould be found in the S. creevisiae's.

Starch, dextran, glycogen, and cellulose are polymers of

Which of the following is a base

Two glucose molecules are combined to make a maltose molecule. What is the chemical formula for maltose?

Desulfovibro bacteria can preform the following reaction. S6 --> S2. These bacteria are

If an amino acid contained a hydrocarbon as its side group, in which of the following categories could it be appropriately designated?

T/F Elements only achieve the full complement of electrons in outermost energy cells by donating or sharing electrons

T/F Covalent bonds are always shared equally

T/F Individual covalent bonds are stronger than individual ionic bonds

T/F The formation of ADP from ATP can be defined as hydrolytic reaction.

T/FAll chemical reactions are in theory reversibel

T/FThe density of liquid water is greater than the density of ice

T/F A basic solution is expected to contain more hydrogen ions than hydroxyl ions.

T/F All forms of life function optimally at a pH

T/F There are some forms of life on Earth that can survive without water.

T/F Any compound that contains carbon is only considered to be organic