14C is a radioisotope of carbon that decays into ____
a. potassium
b. oxygen
c. carbon dioxide
d. nitrogen
e. sulfur
ANSWER: d
You might also like to view...
Which type of cell-surface receptor undergoes changes in phosphorylation in response to binding of its ligand?
A. G protein-coupled receptor B. receptor kinase C. ligand-gated ion channel D. both the G protein-coupled receptor and the receptor kinase
Answer the following statements true (T) or false (F)
1. The plant hypersensitive response is one in which the plant is unable to defend itself against a pathogen. 2. Generally plants are unable to produce chemicals that travel throughout the plant to protect against pathogens; most defense is only in localized areas. 3. When scientists breed for genes for resistance to pathogens or herbivores they are usually limited to making mutations for this to happen. 4. Cytokinins are transported through the xylem to meristems where they aid in cell elongation.
Which microscope allows the use of color to enhance contrast?
a. light b. scanning electron c. transmission electron
What is the abbreviated name of the enzyme ribulose biphosphate carboxylase oxygenase that catalyzes the reaction between carbon dioxide and ribulose bisphosphate?
What will be an ideal response?