The major cellular macromolecules include:
A) proteins, amino acids, lipids, and nucleic acids
B) proteins, steroids, polysaccharides, and nucleic acids
C) proteins, lipids, amino acids, and polysaccharides
D) proteins, nucleic acids, polysaccharides, and antibodies
E) proteins, nucleic acids, polysaccharides, and lipids
Ans: E) proteins, nucleic acids, polysaccharides, and lipids
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In which disorder is the elastic tissue of the lung destroyed making expiration extremely difficult?
a. emphysema b. asthma c. lung cancer d. bronchitis e. apnea
__________ is thought to be due to increased homozygosity
a. The founder effect b. Genetic drift c. Inbreeding depression d. Heterozygote advantage e. Gene flow
What type of thinking is required?
What will be an ideal response?
Choose the two primary factors that contribute to the resting membrane potential of a neuron.
_____ K+ leak channels make the cell membrane more permeable to K+. _____ The sodium-potassium pump exports 3 K+ from the cell for every 2 Na+ it imports _____ Na+ leak channels make the cell membrane more permeable to Na+. _____ K+ leak channels cause a higher concentration of K+ outside the cell. _____ The sodium-potassium pump exports 3 Na+ from the cell for every 2 K+ it imports