Practice Test - Miniunit Epsilon

Practice Test - Miniunit Epsilon

(2) Complete the following sentence by choosing the right combination of words listed below. The more disorganized a system, the more _____ it is and the natural tendency of matter is towards the most _____ state, which is the most _____ state.

a. unstable/stable/disorganized
b. unstable/unstable/organized
c. stable/unstable/disorganized
d. stable/stable/disorganized
(32) An increase in light intensity starting with dark will cause an increase in the photosynthetic rate up to a certain point called the light saturation point.

a. true
b. false
(31) Most of the oxygen making up 20 percent of our air comes from plants carrying out photosynthesis.

a. true
b. false
(22) The complete respiration of glucose yields _____ molecules of ATP when oxygen is utilized. (Include both oxidative and substrate phosphorylation.)

a. 2-4
b. 8-10
c. 36-38
d. over 100
Questions 5-8: Indicate which of the following reactions that the statement refers to: photolysis (light reactions) or carbon dioxide fixation (dark reactions).
(34) Splits water to form oxygen gas.

a. photolysis (light reactions)
b. carbon dioxide fixation (dark reactions)
(38) Carbon dioxide is incorporated into RuBP and then converted into PGA.

a. photolysis (light reactions)
b. carbon dioxide fixation (dark reactions)
(31) Conversion of light energy into chemical energy.

a. photolysis (light reactions)
b. carbon dioxide fixation (dark reactions)
(14) Glucose is synthesized as end product.

a. photolysis (light reactions)
b. carbon dioxide fixation (dark reactions)
(23) Which phosphate group of an ATP molecule contains the highest energy bond?

a. first
b. second
c. third
d. fourth
(6) During respiration substrate phosphorylation may occur. Substrate phosphorylation is:

a. formation of ATP with energy coming from a substrate
b. removal of hydrogen from organic molecules
c. formation of ATP through the cytochrome system
d. none
(30) Those sets of chemical reactions which occur during photosynthesis where light energy is used to promote the splitting of water into hydrogen and oxygen.

a. carbon dioxide fixation
b. hydrolysis
c. oxylysis
d. photolysis
(35) Which of the following reactions is not part of photosynthesis?

a. light reactions (photolysis)
b. dark reactions (CO2 fixation)
c. PS 1 & 2
d. water split to form oxygen
e. Krebs Cycle
(10) The process of respiration takes energy from the chemical bonds in organic fuels and stores this energy in the chemical bonds of the _____ molecule.

a. RuDP
b. DNA
c. ATP
d. glucose
(27) All of the energy used in building energy rich molecules ultimately comes from light (sunlight).

a. true
b. false
(31) Light is directly used during the dark reactions of photosynthesis -- carbon dioxide fixation.

a. true
b. false
(28) Which of the following would represent a complete general equation for photosynthesis, using the chemical formulas for the new materials and products?

a. C6H12O6 + 6O2 -----> 6CO2 + 6H2O
b. 6CO2 + 6O2 -----> 6H2O + C6H12O6
c. 6H2O + 6CO2 -----> 6H2O + C6H12O6
d. 6H2O + 6 CO2 -----> C6H12O6 + 6O2
(10) A chemical process where living organisms break down energy rich organic molecules into energy poor organic molecules releasing energy in a form that can be used by living cells:

a. oxidation
b. condensation
c. hydrolysis
d. respiration
e. photosynthesis
(29) The simplest formula for a carbohydrate would be:

a. CHON
b. CHO
c. CHOP
d. CH2O
e. C3H6O5
(34) During the light reactions of photosynthesis which molecule splits to form oxygen?

a. water
b. ADP
c. CO2
d. RuBP
(28) Photosynthesis converts:

a. light energy into chemical energy
b. chemical energy into light energy
c. light energy into mechanical energy
(13) Energy released during respiration is tranferred and stored in:

a. glucose molecules
b. small organelles called mitochondria
c. water molecules
d. ATP molecules
e. chlorophyll
(18) During anaerobic respiration pyruvic acid is converted into:

a. carbon dioxide and water
b. RDP and ATP
c. glucose only
d. lactic acid or alcohol and CO2
(21) During the operation of the Krebs cycle pyruvic acid is completely broken down into:

a. glucose
b. citric acid
c. oxygen
d. lactic acid or alcohol
e. CO2 and water
(7) During substrate phosphorylation ATP is directly made from the reaction.

a. true
b. false
(37) Pigments found in plants which absorb light to become ionized during photosynthesis.

a. chlorophyll
b. anthocyamin
c. melan
d. caesin
(25) The enzymes which cause the Kreb cycle reactions are located in the mitochondria.

a. true
b. false
(22) Which of the following is not a part of aerobic respiration?

a. CETS (cytochrome electron transport system)
b. Krebs cycle
c. Glycolysis
d. Calvin Cycle (dark reactions)
(3) The First Law of Thermodynamics states that the energy of the universe is _____.

a. unequal
b. unconvertable
c. kinetic
d. constant
28 In the equation for photosynthesis, O2 is:

a. taken in
b. released
(29) Carbohydrates contain which three elements:

a. CHO
b. HON
c. SCH
d. HOS
e. CHNO
(11) The carbon which is synthesized into glucose during photosynthesis, comes from:

a. CO
b. CO2
c. CHON
d. CO2N
e. H2O
Questions 32-33: To which reactions do the following statements refer?
(39) Utilizes RuBP (RDP) to fix CO2 into glucose.

a. Photolysis or light reactions
b. Carbon dioxide fixation or dark reactions
c. Glycolysis
d. Cytochrome electron transport system
e. Kreb cycle
(21) Breaks pyruvic acid into CO2.

a. Photolysis or light reactions
b. Carbon dioxide fixation or dark reactions
c. Glycolysis
d. Cytochrome electron transport system
e. Kreb cycle
(35) _____ is (are) produced during the light reactions.

a. DNA
b. PGA
c. glucose
d. NADPH2 and ATP
(39) TPNH2 (NADPH+H) transfers energy from the _____ and is used during the _____.

a. light reactions, dark reactions
b. dark reactions, light reactions
c. photolysis, light reactions
(19) During the anaerobic respiration ATP is formed in the absence of oxygen.

a. true
b. false
(36) Chlorophylls "a" and "b" are present in higher plants.

a. true
b. false
(18) During anaerobic respiration oxygen breaks down glucose.

a. true
b. false
(42) The light reactions of photosynthesis occur in the mitochondria and the dark reactions occur in the chloroplasts.

a. true
b. false
(37) Chlorophyll molecules are green pigments which absorb blue and red light energy and converts it into chemical energy.

a. true
b. false
(39) ATP and TPNH (NADPH) are used during:

a. carbon dioxide fixation (dark reactions)
b. photolysis (light reactions)
(38) Incorporation of carbon dioxide into a glucose molecule.

a. glycolysis
b. carbon dioxide fixation (dark reactions)
c. photolysis (light reactions)
(21) Respiration is a series of chemical reactions which release energy from glucose and converts it into a form of biological chemical energy.

a. true
b. false
(6) ADP + P ------> ______

a. ATP
b. AMP
c. NAD
d. ADN
(7) Oxidative phosphorlylation requires the use of CETS and the use of oxygen.

a. true
b. false
(9) The energy in NADH2 can be converted into ATP.

a. true
b. false
(12) Which of the following is not synthesized during glycolosis?

a. RuBP
b. NADH+H
c. pyruvate
d. ATP
(17) The total number of ATP produced during "glycolysis" is 130.

a. true
b. false
(22) "One turn" of the Krebs cycle produces _____ ATP. (Include both oxidative and substrate phosphorylation.)

a. 0
b. 12-15
c. 50-100
d. over 100
(41) Where in the chloroplast is the chlorophyll located?

a. stroma
b. outer membranes
c. grana thylakoid
d. cristae
e. ribosomes

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