In what organelle does photosynthesis take place in algae and plants?
A. chloroplast
B. mitochondrion
C. ribosome
D. chlorophyll
E. lysosome
A. chloroplast
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During metabolism, cancer-causing ____ are generated
a. BRCA1 genes b. methyl amines c. reactive oxygen species (ROS) d. BCR-ABL proteins e. mutated tRNA fragments
What class of sensory receptors directly affects the activity of the cardiac center in the medulla oblongata?
A. sensory cells in the juxtaglomerular apparati of the kidneys B. blood glucose sensors in the pancreas C. blood pH chemoreceptors in the aortic and carotid bodies D. baroreceptors in the arch of the aorta and in the carotid arteries E. osmoreceptors in the hypothalamus
Ethanol, propanol, and methanol are three simple alcohols. They can be grouped together because they _____.
A. all share the same functional group: a hydroxyl B. are soluble in water C. are hydrophobic D. all contain a carbonyl group E. increase the acidity of solutions
How does gene expression differ in muscle and nerve cells?
What will be an ideal response?