There are four major classes of organic molecules in the cell. Which of the following is not one of them?
a. Carbohydrates
b. Lipids
c. Water
d. Proteins
Ans: c. Water
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In a severe allergic reaction, a person's tongue can swell up, effectively blocking the air passageways. An emergency procedure can be performed to restore airflow
Basically, a hole is cut into the passageways below the blockage to allow air to flow into the lungs. What passageway would be best for the surgical hole?
When a glucose molecule loses a hydrogen atom (not a hydrogen ion) as the result of an oxidation-reduction reaction, the molecule becomes
A) dehydrogenated. B) hydrogenated. C) oxidized. D) reduced. E) an oxidizing agent.
A multicellular, photosynthetic organism with complex, specialized cells and tissues would most likely be assigned to
(a). kingdom Animalia. (b). kingdom Fungi. (c). kingdom Archaea. (d). kingdom Protista. (e). kingdom Plantae.
Which of the following is NOT a characteristic
of type 1 diabetes?
a. insulin levels are normal b. symptoms usually begin in childhood and adolescence c. it cannot be controlled by diet and exercise d. insulin must be injected e. all of these are characteristics of type 1 diabetes