The method of movement that requires the
expenditure of ATP molecules is
a. simple diffusion.
b. facilitated diffusion.
c. osmosis.
d. active transport.
e. bulk flow.
Answer: d
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Regions on a plant stem that can give rise to new shoots or roots are known as ____
a. bundles b. internodes c. flowers d. cotyledons e. nodes
G and C are present in both DNA and RNA
Indicate whether the statement is true or false
Genes located close together on the same chromosomes are referred to as ________ genes and generally ________
A) linked; sort independently during meiosis B) homologous; are inherited together C) linked; do not sort independently during meiosis D) codependent; do not sort independently during meiosis
Which of the major macromolecules—lipids, carbohydrates, proteins, and nucleic acids—contain nitrogen atoms (N)?
A. Lipids and nucleic acids B. Carbohydrates and proteins C. Carbohydrates and lipids D. Nucleic acids and proteins