Basic Biology final

Basic solution have a pH below 7, while acidic solution have a pH above 7

• true

• false

Which of the classes of RNA molecules is linked whith proteins in forming the large and small subunits of a cytoplasmic structure?

• ribosomal RNA

• transfer RNA

• messenger RNA

• primary mRNA transcript

The pressure reqired to stop water from moving across the membrane by osmosis is called

• transport pressure

• crenation pressure

• atmospheric pressure

• osmotic pressure

Which one of the following is considered a biological macromolecule?

• proteins

• lipids

• carbohydrates

• all of the above

The final electron acceptor in aerobic respiration is

• water

• NADPH

• ATP

• oxygen

Which enzyme catalyze the elongation of a DNA strand in the 5' - 3' direction?

• primase

• DNA ligase

• DNA polymerase |||

• helicase

Single base pair mutation often cause a minimal problems.

• true

• false

If oxygen is absent during the second stage of cellular respiration,

• fermentation will occure

• the Krebs cycle begins

• the electron transport chain works more efficiently

• glycolysis stops

Choose the pair of terms that correctly completes this sentence: Catabolism is to anabolism as --- is to ---.

• exergonic; spontaneous

• exergonic; endergonic

• free energy; entropy

• work; energy

Codons are

• triplets coding for a single amino acid

• the alphabet of the genetic language

• redundant in their coding for various amino acids

• all of the previous