Delgado Bio 141 test 3
Enzymatic action:
all of the above
Which best describes the term "crossing over"?
an exchange of information between two homologous chromosomes
Moves electrons through a series of pumps to produce 32-34 ATP molecules
electron transport chain
Chemical reactions that occur only when there is an input of energy are
exergonic reactions
Which of these is not a stage in the cellular respiration cycle?
fermentation
The first stage of cellular respiration is
glycolysis
Sight of aerobic cellular respiration
mitochondria
When NADH loses its hydrogen ion and two electrons it is
oxidized
At the end of glycolysis the six carbon glucose molecule has been cut in half to produce
two pyruvate molecules
How many ATPs are produced during the Krebs Cycle?
1
How many cell divisions occur during meiosis?
1
Name the four stages of mitosis
1. Prophase 2. Metaphase 3. Anaphase 4. Telophase
What is the total yield of ATP during glycolysis?
2
The function of NAD in cellular respiration is to
Accept and carry electrons
Which is true about activation energy?
Adding the correct enzyme can lower the energy of activation
Which term refers to "with oxygen"?
Aerobic
What phase of mitosis do sister chromatids split apart from one another?
Anaphase
Organisms that produce their own chemical energy are called autotrophs T/F
True
Reduction is the gain of electrons and/or hydrogen atoms T/F
True
The first law of thermodynamics states that
Energy cannot be created or destroyed
A sperm cell is a (gamete or zygote) and is (haploid or diploid)
Gamete Haploid
__________ is the longest phase of the cell cycle and includes two growth phases with an S-phase between them. During the __________, DNA replication occurs. Chromosomes become visible under a light microscope during ________. Sister chromatids line up along the center line of the cell during __________. Spindle fibers separate the sister chromatids during ________. The two sets of genetic material can be seen on either side of the cell during _________, after which the cells splits into two daughter cells in a process called cytokenesis.
Interphase S Phase Prophase Metaphase Anaphase Telephase
In Biology, heat is measured in which unit?
Kilocalorie
Which energy association is correct?
Kinetic energy is the energy of motion.
Oxidation is the _________ and reduction is the ________
Loss of electrons, gain of electrons
Is DNA copied before Meiosis 2? Yes/No
No
_____ occurs when there is a removal of electrons and/or hydrogen atoms from a substrate
Oxidation
During what phase of the cell cycle does DNA replication occur?
S Phase
Enzymes
Speed up metabolic reactions
NADH to NAD+ is an oxidation reaction T/F
True