The problem below relates to the synthesis of several intermediates in the citric acid cycle, which is essential in the production of ATP through aerobic respiration
A set of experimental results relating the growth (+) of Neurospora on several media is given in the table. Based on the information provided, present the biochemical pathway for the substances oxaloacetate, fumarate, malate, and succinate and the locations of the metabolic blocks produced by the various strains.
Strain Medium
MM MM MM MM MM
+ oxaloacetate + fumarate + malate + succinate
l62 - + - + -
l36 - + - - -
l41 - + + + -
MM = minimal medium
succinate ? + ? fumarate? + ? malate ? + ? oxaloacetate
? ? ?
141 162 136
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A complete viral particle is called a ____
a. capsule b. virion
c. capsid d. viroid e. prophage
Which of the following statements is false regarding RSV?
A. RSV infects infants aged 6 months and younger; it is unlikely that a 4-year-old would develop a respiratory disease as a result of this virus. B. While RSV is most prevalent in infants 6 months of age and younger, the highest mortality rate is in those children with underlying risk factors such as prematurity. C. Infants aged 6 months and younger are the most susceptible to infection by RSV; however, adults and older children can also become infected with this virus. D. Although RSV is most prevalent in infants aged 6 months and younger, usually by age 2 most children have been exposed to this virus.
Which of the following refers to the flow of hydrogen ions across the mitochondrial membrane?
a. Chemiosmosis b. Diffusion c. Citric acid cycle d. Oxidative phosphorylation
The veins of leaves are used for ____
a. support b. identification c. transport of water and nutrients d. detachment in the autumn e. regeneration