Bio 230 Exam 3: Cellular Respiration and Photosynthesis, Exams of Biology

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Which of the following is ordered correctly from largest to smallest A. Plant cell, chloroplast, chlorophyll, glucose, carbin dioxide B. Plant cell, chlorophyll, chloroplast, glucose carbon dioxide C. Plant cell, glucose, chloroplast, chlorophyll, carbon dioxide D. Chloroplast, plant cell, glucose, carbon dioxide, chlorophyll A. Plant cell, chloroplast, chlorophyll, glucose, carbin dioxide What is the original source of most of the energy that is in your body right now? A. Oxygen B. Nutrients C. Carbohydrates D. Sunlight E. Carbon dioxide D. Sunlight A patient who has been poisoned arrives in the emergency room. The patient's ATP levels are low and NADH levels are high. Which of the following cellular respiration processes is likely to be most affected? A. Glycolysis B. Transition Reaction C. Citric Acid/ Krebs Cycle D. Electron Transport Chain E. All of the Above D. Electron Transport Chain Biologist at the NASA's Astrobiology Institute are studying new life forms found in the Antarctic and have collected an unknown specimen that appears to have ribosomes and to carry out cellular respiration. This specimen could be... A. A virus B. A prokaryote C. A eukaryote

D. Either B or C E. Either A, B, or C D. Either B or C At the end of the Citric Acid/Krebs Cycle, most of the energy that was originally glucose is A. Used up in the splitting of glucose B. Transferred to ADP, forming ATP C. Transferred directly to ATP D. Stored in Acetyl CoA E. Stored in the NADH AND FADH2 produced E. Stored in the NADH AND FADH2 produced Which of the following is the most scientifically accurate statement about DNA replication compared to gene expression (transcription/ translation)? A. DNA replication occurs in virtually all cells while transcription/ translation occurs in some cells B. DNA replication and transcription/ translation produce the same molecules C. The same enzyme is responsible for DNA replication and transcription/translation D. DNA replication occurs in some cells while transcription/translation occurs in nearly all cells D. DNA replication occurs in some cells while transcription/translation occurs in nearly all cells What is the original source of most of the dry mass that is in your body right now A. Carbs B. Sunlight C. Oxygen D. Carbon dioxide E. Nutrients D. Carbon dioxide During glycolysis when glucose is transformed to pyruvate most of the energy of glucose is A. Stored in the NADH PRODUCED B. Used up in the splitting of glucose C. Transferred to ADP, forming ATP D. Transferred directly to ATP E. Stored in the pyruvate E. Stored in the pyruvate The oxygen gas in aerobic cellular respiration is directly involved in which process? A. Pumping hydrogen ions out of the mitochondrial matrix B. Splitting glucose C. Converting pyruvate to Acetyl CoA D. Generating of NADH E. Accepting electrons at the end of the ETC

E. Accepting electrons at the end of the ETC In the 1600's Jean Baptiste Van Helmont conducted a 5 yr willow tree experiment in which he measured the weight of the tree and the weight of the soil at the beginning and at the end of the experiment. What can you conclude from the evidence he collected in this experiment? A. The mass of the tree came from the CO B. Soil contributes important things to plant growth C. Soil does not contribute much mass to the mass of the tree D. The mass of the tree came mostly from the water E. The mass of the tree does not change when a plant grows C. Soil does not contribute much mass to the mass of the tree In which of the following molecule(s) is sunlight energy FINALLY stored during photosynthesis? A. Oxygen B. Carbon dioxide C. Glucose D. NADH & FADH E. NADPH & ATP C. Glucose Which of the following are ordered correctly from Largest to Smallest A. Chromosome 5, human genome, APC gene, codon, exon B. Human genome, APC gene, chromosome 5, exon, codon C. Human Genome, chromosome 5, APC gene, exon, codon D. Human Genome, chromosome 5, APC gene, codon, exon C. Human Genome, chromosome 5, APC gene, exon, codon Once a carbon atom from carbon dioxide in the air becomes apart of a plant, which of the following paths could that carbon atom take? A. Become part of oxygen gas released B. Exit the plant in a molecule of CO C. Become part of a dna molecule D. Both a & b E. Both b & c E. Both b & c What happens to the oxygen gas that you inhale? A. Becomes part of water molecules B. It is exhaled Unchanged C. Becomes part of carbon dioxide molecules D. Both a and b E. Both b and c

D. Both a and b The bonds that hold together two DNA molecules THAT MAKE UP A DOUBLE HELIX ARE... A. Weak covalent bonds B. Weak hydrogen bonds C. Weak ionic bonds D. Strong covalent bonds E. Strong ionic bonds B. Weak hydrogen bonds What is the original source of hydrogen atoms in a molecule of glucose produced during photosynthesis? A. Water B. Carbon dioxide C. NADH D. Oxygen gas E. Pyruvate A. Water Where do the oxygen atoms in the oxygen gas that plants release during photosynthesis come from? A. Nutrients B. Glucose C. Sunlight D. Carbon dioxide E. Water E. Water Which of the following cells contains the genes that determine hair color? A. Cells in the scalp only B. Cells in the liver only C. Gametes (eggs or sperm) only D. Cells in the scalp and the gametes but NOT cells in the liver E. Cells in the scalp, gametes, and cells in the liver E. Cells in the scalp, gametes, and cells in the liver During which processes of aerobic cellular respiration is carbon dioxide produced? A. Only the citric acid/Krebs cycle B. Only the transition reaction C. Only glycolysis D. Both the citric acid/Krebs cycle and the Transition reaction E. Both the transition reaction and glycolysis

D. Both the citric acid/Krebs cycle and the Transition reaction Which of the following processes of aerobic cellular respiration produces the most ATP? A. Glycolysis B. Transition Reaction C. Citric Acid/Krebs Cycle D. Calvin cycle E. Electron transport chain E. Electron transport chain A mature tree can have a dry mass of 1 ton or more, yet it starts from a seed that weighs less than 1 gram. Which of the following contributes the most mass to this huge increase in bio mass? And why? A. absorption of sunlight energy into green leaves B. absorption of mineral substances from the soil via roots C. Incorporation of water from soil into molecules by green leaves D. Incorporation of carbon dioxide from the atmosphere into molecules by green leaves D. Incorporation of carbon dioxide from the atmosphere into molecules by green leaves

• both carbon and oxygen in glucose come from CO2 through the process of photosynthesis "Water from the soil does not contribute any mass to the dry biomass of the tree" Agree or Disagree Disagree
• The mass of a tree comes from CO2 and H2O converting to glucose through the process of photosynthesis.
• The Carbon, Oxygen and Hydrogen atoms all make up the glucose molecule.
• The Carbon and Oxygen atoms account for most of the mass of the glucose while the hydrogen accounts for a little mass.
• The hydrogen in glucose come from the water that was in the tree. "Photosynthesis is the plant form of cellular respiration which produces O2 gas instead of CO2" agree or disagree Disagree
• photosynthesis is when Carbon dioxide and water are synthesized to produce a molecule of glucose (food)
• cellular respiration is when food (glucose) is transformed to produce ATP ENERGY
• plants do both photosynthesis and cellular respiration
• plants give off CO2 during cellular respiration and give off oxygen gas during photosynthesis A mature tree can have a dry biomass of 1 ton or more (after removing all water), yet it starts from a seed that weighs less than 1 gram. Which of the following contributes the most mass to this huge increase in biomass?

The incorporation of carbon dioxide from the atmosphere into molecules by green leaves

• carbon dioxide contributes the most mass
• CO2 and H2O from a plant are synthesized into glucose through the process of photosynthesis.
• the hydrogen atoms in photosynthesis do not have as much mass was carbon dioxide Where does the O2 gas that plants release during photosynthesis come from? Water In which of the following molecule is sunlight energy INITIALLY stored during photosynthesis? A. Glucose B. NADPH C. ATP D. Both a & c E. Both b & c E. Both b and c In which of the following molecules is sunlight energy finally stored at the end of photosynthesis? A. Glucose B. NADPH C. ATP D. Both a & c E. Both b & c A. Glucose Where was the oxygen atom in exhaled carbon dioxide just before it was apart of CO2? A. In O2 gas B. In glucose C. In ATP D. In both a & b E. In both b & c