Sugar is translocated in phloem from a source, or an area of ____, to a sink, or an area of ____
a. low sugar concentration; high sugar concentration
b. high sugar concentration; low sugar concentration
c. positive water potential; negative water potential
d. negative water potential; positive water potential
e. low pressure; equally low pressure
b
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Experiments involving the peptide known as CLAVATA3 were carried out to determine which of the following?
A. the binding properties of CLAVATA3 B. the size of the peptide C. the influence of CLAVATA3 on peripheral zone cell development D. the role of auxin in cell elongation E. None of these choices is correct
Select that statement that reflects evidence that directly supports the endosymbiotic theory.
A. Lysosomes contain their own DNA in the form of plasmids. B. The electron transport system is located in the cell membrane in bacteria, while in eukaryotes it is located in the mitochondrial cristae. C. Enzymes for photosynthesis are found embedded in membranes of the Golgi apparatus. D. Glycolysis occurs in the cytoplasm of bacterial cells.
Endometriosis can lead to infertility by ____
a. preventing oocytes from forming b. preventing maturation of oocytes c. causing the formation of cysts d. causing scarring in the oviducts e. decreasing sperm viability
Proteins and fats may be used as energy sources to drive aerobic respiration.
Answer the following statement true (T) or false (F)