Red blood cells have been very useful in the study of membranes and the protein components that provide structural support. Which of the following proteins is the principal fibrous protein in the cortex of the red blood cell?
(a) tubulin
(b) attachment proteins
(c) actin
(d) spectrin
(d)
Biology & Microbiology
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Where would one find the leaf axillary bud in most eudicots?
A. in the internode of the stem. B. near the terminal bud. C. between the leaf petiole and the stem. D. between the leaf petiole and the leaf blade. E. between leaflets on a compound leaf.
Biology & Microbiology
Which of the following is NOT found in the
dermis?
a. sensory receptors b. sweat glands c. hair follicles d. adipose tissue e. all of these are found in the dermis
Biology & Microbiology
Telomere shortening is a problem in which types of cells?
A) only prokaryotic cells B) only eukaryotic cells C) cells in prokaryotes and eukaryotes
Biology & Microbiology
The pelvic cavity contains which of the following?
A) Urinary bladder B) Stomach C) Lungs D) Brain
Biology & Microbiology