Which glycolytic enzyme uses ATP to phosphorylate glucose?

A) alcohol dehydrogenase
B) phosphoglucoisomerase
C) aldolase
D) hexokinase
E) pyruvate kinase


Answer: D

Biology & Microbiology

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Glucose diffuses slowly through artificial phospholipid bilayers. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm

Using this information, which transport mechanism is most probably functioning in the intestinal cells? A) simple diffusion B) phagocytosis C) active transport pumps D) exocytosis E) facilitated diffusion

Biology & Microbiology

The photosynthetic amoeba is an example of a second chloroplast endosymbiotic event

A. true B. false

Biology & Microbiology

Match the following items with the correct phrases.

_______1. A ringworm infection of the scalp, eyebrows, and eyelashes _______2. An infection of the palms of the hands and, less commonly, the neck and feet caused by Hortaea werneckii _______3. An infection of scalp hair and, less commonly, eyebrows and eyelashes caused by Piedraia hortae _______4. An infection of moustache, beard, pubic, and axilla hair, usually caused by Trichosporon beigelii _______5. A ringworm infection of the soles and between the toes A) Black piedra B) White piedra C) Tinea nigra D) Tinea capitis E) Tinea pedis

Biology & Microbiology

Rings of the protein _______ in the pericentriolar material nucleate microtubule assembly

a. centrin b. pericentrin c. alpha-tubulin d. gamma-tubulin e. beta-tubulin

Biology & Microbiology