1.During active transport molecules move ___________ the concentration gradient.
a.Against
b.Down
2.Can a reversible reaction be exergonic in both directions?
a.Yes
b.No
c.It depends on the conditions
3.An electron carrier that gains electrons during aerobic respiration has been:
a.Oxidized
b.Reduced
4.An organic molecule that is required for an enzyme to function properly is called a
:
a.Enzyme-substrate complexc. Substrate molecule
b.Noncompetitive inhibitord. Coenzyme
5.A system that can only exchange energy with the surroundings is a:
a.Isolated system
b.Closed system
c.Open system
6.Where does aerobic respiration take place in eukaryotic organisms (with the exception of glycolysis)?
a.Chloroplastsc. Plasma membrane
b.Mitochondriad. Ribosomes
7.What is the final electron acceptor during lactic acid fermentation?
a.Oxygenc. Pyruvate
b.A sulfate iond. Acetaldehyde
8.What pigment molecule is found in the reaction center complex (RCC)?
a.Chlorophyll a onlyc. Carotenoids only
b.Chlorophyll b onlyd. All three can be found in the RCC
9.Where does the Calvin cycle take place?
a.Thylakoid membranesc. Stroma
b.Mitochondrial matrixd. Intermembrane space
10.What happens when P700 absorbs energy from pigment molecules in the light harvesting complex?
a.An electron is transferred to a primary electron acceptor in the reaction center complex
b.An electron is transferred directly to an electron transport chain
c.An electron is excited and then falls back down to the ground state
11.What happens to electrons released when a water molecule is split?
a.They are released into the thylakoid space
b.They are used to produce O2
c.They are transferred to P680+
12.What molecule is regenerated during the Calvin cycle?
a.3-phosphoglyceratec. RuBP
b.G3Pd. CO2
13.Which of the following is never a product of the light reactions?
a.G3P (a sugar)c. ATP
b.O2d. NADPH
14.What are the two most important products of photosynthesis?
a.O2, sugarc. CO2, water
b.CO2, sugard. O2, CO2
15.Cytokinesis in plant cells occurs through ___________.
a.Cleavage
b.Cell plate formation
c.Binary fission
16.The sister chromatids are separated and move to opposite ends of the cell during which stage of mitosis?
a.Prophased. Anaphase
b.Prometaphasee. Telophase
c.Metaphase
17.The mitotic spindle begins to form and the centrosomes move to opposite ends of the cell during this stage of mitosis.
a.Prophased. Anaphase
b.Prometaphasee. Telophase
c.Metaphase
18.What is the key role of cell division in unicellular organisms?
a.Reproduction onlyc. Maintenance and repair only
b.Growth and development onlyd. All three are correct
19.The 10x objective lens is called the:
a.Scanning objectivec. Low power objective
b.High power objectived. Oil immersion lens
20.Which of the following structures are not present in animal cells?
a.Chloroplasts onlyd. a and b
b.Cell wall onlye. a and c
c.Nucleus
a.Against
b.Down
2.Can a reversible reaction be exergonic in both directions?
a.Yes
b.No
c.It depends on the conditions
3.An electron carrier that gains electrons during aerobic respiration has been:
a.Oxidized
b.Reduced
4.An organic molecule that is required for an enzyme to function properly is called a
:a.Enzyme-substrate complexc. Substrate molecule
b.Noncompetitive inhibitord. Coenzyme
5.A system that can only exchange energy with the surroundings is a
:a.Isolated system
b.Closed system
c.Open system
6.Where does aerobic respiration take place in eukaryotic organisms (with the exception of glycolysis)?
a.Chloroplastsc. Plasma membrane
b.Mitochondriad. Ribosomes
7.What is the final electron acceptor during lactic acid fermentation?
a.Oxygenc. Pyruvate
b.A sulfate iond. Acetaldehyde
8.What pigment molecule is found in the reaction center complex (RCC)?
a.Chlorophyll a onlyc. Carotenoids only
b.Chlorophyll b onlyd. All three can be found in the RCC
9.Where does the Calvin cycle take place?
a.Thylakoid membranesc. Stroma
b.Mitochondrial matrixd. Intermembrane space
10.What happens when P700 absorbs energy from pigment molecules in the light harvesting complex?
a.An electron is transferred to a primary electron acceptor in the reaction center complex
b.An electron is transferred directly to an electron transport chain
c.An electron is excited and then falls back down to the ground state
11.What happens to electrons released when a water molecule is split?
a.They are released into the thylakoid space
b.They are used to produce O2
c.They are transferred to P680+
12.What molecule is regenerated during the Calvin cycle?
a.3-phosphoglyceratec. RuBP
b.G3Pd. CO2
13.Which of the following is never a product of the light reactions?
a.G3P (a sugar)c. ATP
b.O2d. NADPH
14.What are the two most important products of photosynthesis?
a.O2, sugarc. CO2, water
b.CO2, sugard. O2, CO2
15.Cytokinesis in plant cells occurs through ___________.
a.Cleavage
b.Cell plate formation
c.Binary fission
16.The sister chromatids are separated and move to opposite ends of the cell during which stage of mitosis?
a.Prophased. Anaphase
b.Prometaphasee. Telophase
c.Metaphase
17.The mitotic spindle begins to form and the centrosomes move to opposite ends of the cell during this stage of mitosis.
a.Prophased. Anaphase
b.Prometaphasee. Telophase
c.Metaphase
18.What is the key role of cell division in unicellular organisms?
a.Reproduction onlyc. Maintenance and repair only
b.Growth and development onlyd. All three are correct
19.The 10x objective lens is called the:
a.Scanning objectivec. Low power objective
b.High power objectived. Oil immersion lens
20.Which of the following structures are not present in animal cells?
a.Chloroplasts onlyd. a and b
b.Cell wall onlye. a and c
c.Nucleus