ATP is expended in which of the following processes?
A. facilitated diffusion
B. diffusion
C. group translocation
D. active transport
E. both active transport and group translocation
Answer: E
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Due to high rates of water loss, all woody plants must produce more of which type of tissue?
A. secondary xylem B. secondary phloem C. cork D. bark
A promoter controls ________
a. transcription of specific genes b. mRNA translation c. protein synthesis d. DNA replication
Pseudogenes are evidence of
A) gene duplications. B) integrated viruses, or proviruses. C) natural selection for functional genes. D) de novo genes. E) proteins that are produced but have no function.
Because of the atomic structure of carbon, it tends to form
a. covalent bonds. b. ionic bonds. c. hydrogen bonds. d. sulfide bonds. e. bonds only with hydrogen.