This polysaccharide is an important ECM component for the exoskeleton of many insects and shellfish.
A. proteoglycan
B. glycosaminoglycans
C. collagen
D. chitin
E. laminin
D. chitin
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A dipoid organism that you are studying has 17 chromosomes. How many total chromosomes are found in a somatic cell from this organism? A sperm cell? An egg cell?
A. 17; 16; 16 B. 17; 17; 17 C. 34; 17; 34 D. 34; 17; 17
Which of the following best describes the photosynthetic membranes of Chlorobia?
A. Accessory bacteriochlorophylls are located in the chlorosomes but the reaction center bacteriochlorophyll is located in the plasma membrane. B. Accessory bacteriochlorophylls are located in the plasma membrane but the reaction center bacteriochlorophyll is located in the chlorosomes. C. Accessory and reaction center bacteriochlorophylls are located in the plasma membrane. D. Accessory and reaction center bacteriochlorophylls are located in the chlorosomes.
What term is used to describe bacteria that can only live in the absence of oxygen?
a. aerobes b. anaerobes c. oxyphiles d. oxyphobes e. methanogens
Which of the following is NOT an enzyme?
A) Lactose B) Amylase C) Catalase D) Protease E) Isomerase