BIO 440 Lecture Exam #2 Questions With
Correct Answers
Metabolism - ANSWER All chemical reactions in a cell, both catabolic & anabolic
reactions
Catabolic reactions - ANSWER Degradative reactions
Catabolic reactions - ANSWER large substances are broken down into smaller
substances to release energy & to supply building blocks for making macromolecules
(exergonic)
Reproduction - ANSWER What is the goal for metabolism?
Kluyver & Van Niel - ANSWER Who began biochemistry & metabolism?
needed for anabolism, motility and active transport - ANSWER Why is catabolism
needed?
Anabolic reactions - ANSWER biosynthetic reactions
Anabolic reactions - ANSWER smaller substances are joined together using energy to
synthesize larger substances (macromolecules) for celll structure/products (enzymes,
organelles, etc.) (endergonic)
needed for growth, repair, reproduction - ANSWER Why is anabolism needed?
Catabolism - ANSWER What metabolic reaction breaks chemical bonds to release
energy
,Anabolism - ANSWER Phosphate bond is broken to release energy for what metabolic
reaction?
ATP - ANSWER What is made by phosphorylating ADP using the energy relased
ATP - ANSWER The major energy supplier; it links anabolic & catabolic reactions
Anabolism - ANSWER What metabolic reaction requires CONCENTRATED energy
Metabolic processes (anabolic & catabolic) - ANSWER Occur by controlled chemical
reactions within a cell
reactions - ANSWER Metabolic processes occur through a series of steps
Metabolic pathway - ANSWER a series of chemical reactions where the product of the
first reaction is the substrate for the subsequent enzyme-catalyzed steps
specific enzyme - ANSWER Each stepp in a metabolic pathway requires a
The cell cannot form the final product of the pathway nor any of the intermediates
downstream from the missing enzyme= metabolic diseases - ANSWER What happens
when one enzyme in a pathway is missing or defective
Phenylketonuria (NutraSweet is toxic for phenylketonurics) - ANSWER Example of a
metabolic disease
ribozymes - ANSWER Name of some RNAs that can act as enzymes in metabolic
pathways
, proteins - ANSWER Most enzymes are ------ in metabolic pathways
catalysts - ANSWER Substances that increase reaction rates by lowering the activation
energy (energy required to start the reaction) of chemical reactions
catalysts - ANSWER Neither created nor destroyed in the reactions they catalyze in
metabolism
1. metabolic reactions occur too slowly in cells to sustain life (T too low)
2. increasing temperature to increase reaction rates would kill cells (denature
proteins/DNA) - ANSWER Metabolic reactions in cells require enzymes because
active site, substrate - ANSWER 3-D structure protein creates an ----- where the enzyme
binds its specific -----
-ase - ANSWER enzyme suffix
according to substrate and/or function - ANSWER How are enzymes named
phosphofructokinase - ANSWER enzyme which adds phosphate to fructose 6-phosphate
conenzymes & cofactors - ANSWER Substances required by some enzymes for full
activity
apoenzyme - ANSWER enzyme without coenzyme/cofactor
haloenzyme - ANSWER enzyme with coenzyme/cofactor
Coenzymes - ANSWER organic molecules (NAD+, FAD, cytochromes), loosely
Correct Answers
Metabolism - ANSWER All chemical reactions in a cell, both catabolic & anabolic
reactions
Catabolic reactions - ANSWER Degradative reactions
Catabolic reactions - ANSWER large substances are broken down into smaller
substances to release energy & to supply building blocks for making macromolecules
(exergonic)
Reproduction - ANSWER What is the goal for metabolism?
Kluyver & Van Niel - ANSWER Who began biochemistry & metabolism?
needed for anabolism, motility and active transport - ANSWER Why is catabolism
needed?
Anabolic reactions - ANSWER biosynthetic reactions
Anabolic reactions - ANSWER smaller substances are joined together using energy to
synthesize larger substances (macromolecules) for celll structure/products (enzymes,
organelles, etc.) (endergonic)
needed for growth, repair, reproduction - ANSWER Why is anabolism needed?
Catabolism - ANSWER What metabolic reaction breaks chemical bonds to release
energy
,Anabolism - ANSWER Phosphate bond is broken to release energy for what metabolic
reaction?
ATP - ANSWER What is made by phosphorylating ADP using the energy relased
ATP - ANSWER The major energy supplier; it links anabolic & catabolic reactions
Anabolism - ANSWER What metabolic reaction requires CONCENTRATED energy
Metabolic processes (anabolic & catabolic) - ANSWER Occur by controlled chemical
reactions within a cell
reactions - ANSWER Metabolic processes occur through a series of steps
Metabolic pathway - ANSWER a series of chemical reactions where the product of the
first reaction is the substrate for the subsequent enzyme-catalyzed steps
specific enzyme - ANSWER Each stepp in a metabolic pathway requires a
The cell cannot form the final product of the pathway nor any of the intermediates
downstream from the missing enzyme= metabolic diseases - ANSWER What happens
when one enzyme in a pathway is missing or defective
Phenylketonuria (NutraSweet is toxic for phenylketonurics) - ANSWER Example of a
metabolic disease
ribozymes - ANSWER Name of some RNAs that can act as enzymes in metabolic
pathways
, proteins - ANSWER Most enzymes are ------ in metabolic pathways
catalysts - ANSWER Substances that increase reaction rates by lowering the activation
energy (energy required to start the reaction) of chemical reactions
catalysts - ANSWER Neither created nor destroyed in the reactions they catalyze in
metabolism
1. metabolic reactions occur too slowly in cells to sustain life (T too low)
2. increasing temperature to increase reaction rates would kill cells (denature
proteins/DNA) - ANSWER Metabolic reactions in cells require enzymes because
active site, substrate - ANSWER 3-D structure protein creates an ----- where the enzyme
binds its specific -----
-ase - ANSWER enzyme suffix
according to substrate and/or function - ANSWER How are enzymes named
phosphofructokinase - ANSWER enzyme which adds phosphate to fructose 6-phosphate
conenzymes & cofactors - ANSWER Substances required by some enzymes for full
activity
apoenzyme - ANSWER enzyme without coenzyme/cofactor
haloenzyme - ANSWER enzyme with coenzyme/cofactor
Coenzymes - ANSWER organic molecules (NAD+, FAD, cytochromes), loosely
