Delgado Bio 141 test 3

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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


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