Glycosylated proteins and lipids within the plasma membrane are important for
A. cell recognition.
B. cell protection.
C. cell energy storage.
D. cell recognition and protection.
E. cell protection and energy storage.
D. cell recognition and protection.
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The myofibrils consist of both thin filaments made of actin and thick filaments composed of
A. tropomyosin. B. myosin. C. acetylcholine. D. troponin. E. chitin.
Free radicals contain unpaired electrons in their outermost energy shell, so they react readily with other atoms or molecules to reach a more stable state. Which of the following could potentially be a free radical?
A) Magnesium (atomic number 12 ) B) Neon (atomic number 10 ) C) Helium (atomic number 2 ) D) Fluorine (atomic number 9 )
Which of the following vitamins is an essential nutrient in humans that cannot be synthesized by intestinal bacteria?
A) Biotin B) Vitamin B5 (pantothenic acid) C) Vitamin C (ascorbic acid) D) Folic acid E) Vitamin K
________ is most likely associated with transduction
A) Conjugation B) Transformation C) Lysogeny D) factor E) Plasmid ColE