The carrier molecules used in active transport are
a. calcium ions in the calcium pump.
b. proteins.
c. ATP molecules.
d. carbohydrates.
e. lipids.
Answer: b
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Which of the following is a correct description of a component of the ATP molecule?
A. High energy bond: glycosidic bond B. High energy bond: peptide bond C. Sugar: ribose D. Sugar: deoxyribose E. Nitrogenous base: alanine
Which of the following is NOT a principle used when constructing cladograms?
A. All species or higher taxa are placed on tips in a phylogenetic tree. B. All species or higher taxa are placed on nodes in a phylogenetic tree. C. Each cladogram branch point should have one or more shared derived characters that are common to all species above the branch point, unless the character is later modified. D. All shared derived characters appear together only once in a cladogram unless they arose independently during evolution more than once.
Pr is located in the __________, and after it absorbs red light, the resulting Pfr moves to the
__________. a. endoplasmic reticulum; plasma membrane b. cytoplasm; nucleus c. plasma membrane; cytoplasm d. cytoplasm; plasma membrane e. nucleus; cytoplasm
The oxygen present in Earth's atmosphere has been produced as a waste product of the process of ________
Fill in the blank(s) with correct word