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Exam 2 Practice Questions

Terms in this set (31)

Respiration describes the exchange of gases between your blood and the air. This is different from cellular respiration, which______
Produces ATP.
Which of these equations describes aerobic cellular respiration?
glucose + oxygen---> carbon dioxide+ water + energy.
Where in the eukaryotic cell does glycolysis occur?
Cytoplasm
Which of the following is the correct sequence of stages in cellular respiration?
glycolysis, citric acid cycle, electron transport.
The electron transport chain of cellular respiration takes place in the _____ of eukaryotes.
Mitochondria
ATP synthase, a large protein molecule found in the inner membrane of mitochondria, plays a role in______
Generating ATP from the energy produced by H+ ions moving through it and down their concentration gradient.
Aerobic cellular respiration generates about_____ ATP from on glucose.
32-38
Anaerobic respiration produces a maximum of ______ ATP per glucose.
2
Which of the following metabolic pathways is common to both aerobic and anaerobic processes?
glycolysis.
What waste product do yeast produce under anaerobic conditions?
ethyl alcohol and carbon dioxide.
Lactic acid build up in muscle cells is a sigh that _________.
not enough oxygen is reaching the muscle cells.
A process is referred to as aerobic if it requires____
Oxygen
Humans are both________
Heterotrophs and consumers.
Photosynthetic organisms are_______
producers that make all their own organic matter from inorganic molecules.
The ultimate source of energy flowing into nearly all ecosystems is______
Sunlight.
Which of the following is found in both cellular respiration and in the light reactions of photosynthesis?
Electron transport chain.
_________ is the source of the oxygen gas released by photosynthesis.
H2O
The light reactions of photosynthesis take place________
in the thylakoid membrane of the chloroplast.
What two substances produced by aerobic cellular respiration and used by autotrophs during photosynthesis would be located in BOX A?
CO2 and H20
What two substances produced by autotrophs during photosynthesis and used by heterotrophs during aerobic cellular respiration would be located in BOX B?
C6H12O6 and O2.
WHich of the three stages of cellular respiration in eukaryotic cells occur in the cytoplasm?
Glycolysis.
Which of the following statements is TRUE?
Carbon dioxide and water are products of aerobic respiration; ethyl alcohol or lactic acid are products of fermentation.
Which of the following happens during glycolysis?
Conversion of glucose (6 carbon molecule) to 2 pyruvic acid molecules (3 carbon molecules).
When a molecule absorbs a photon, one of its electrons is raised to the_____ state.
excited
The shorter the wavelength of visible light, the _________.
greater the energy.
The color of light and the energy associated with these wavelengths that appear _________ is LEAST useful to photosynthesis.
Green
Which of the following is produced during the light reactions of photosynthesis?
O2
Through what structure do plants obtain most of their water?
roots.
Within the inner membrane of a chloroplast, interconnected sacs of membrane called________ are suspended in a thick fluid called_______
Thylakoid, stroma.
What compound directly provides energy for cellular work and is called the "cellular energy currency"?
ATP
The calvin cycle is sometimes called the "dark reactions." Could it take place if a plant were grown in the dark only?
No because sunlight is needed to split water to provide electrons taken up by NADPH and hydrogen ions needed for ATP Synthase.
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