Use the following information to answer the following question(s): You wake up one morning feeling slightly under the weather. A close family member enthusiastically suggests that you take some Echinacea, an herb commonly used as a cold remedy. You then decide to design an experiment to test Echinacea and see if this claim is true. You think, "If taken at the beginning of a cold, Echinacea will reduce cold symptoms."Your statement, "If taken at the beginning of a cold, Echinacea will reduce cold symptoms," is called a(n) ________.
A. observation
B. theory
C. conclusion
D. hypothesis
Answer: D
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A membrane protein that spans the phospholipid bilayer one or more times is _____
A) a transmembrane protein B) an associated protein C) a peripheral protein D) an integrin E) a glycoprotein
Photorespiration in chloroplasts differs from cellular respiration in mitochondria in that ___
A. ATP is required for photorespiration but is a product of mitochondrial respiration B. NADH supplies high energy electrons in mitochondrial respiration, whereas RuBP supplies the electrons necessary for photorespiration. C. photorespiration supplies plant cells with ATP. Mitochondrial respiration supplies animal cells with ATP. D. carbon dioxide is produced in mitochondrial respiration, and oxygen is produced in photorespiration
Multigene families arise from _____
a. a single gene duplication event b. repeated cycles of gene duplication followed by mutation
c. single point mutations d. exon shuffling e. deletions of genes
A feature of bony fish not found in sharks is _____.
Fill in the blank(s) with the appropriate word(s).