Where are ion channels localized?

A) in the cytoplasm
B) on the intracellular surface of plasma membranes
C) spanning plasma membranes
D) on the extracellular surface of plasma membranes


Ans: C) spanning plasma membranes

Biology & Microbiology

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Which of the following was proposed by Mendel after working with garden pea plants?

a. The physical observation of a recessive trait means that the organism lacks any dominant versions of that characteristic. b. An organism’s dominant traits disappear in the offspring of a hybridization. c. The physical observation of a dominant trait means that the organism has two recessive versions of that characteristic. d. An organism’s dominant and recessive traits blend to form a codominant allele.

Biology & Microbiology

What is the nutrient cycle in nitrification?

a. Nitrogen, nitrate, nitrite b. Ammonia, nitrite, nitrate c. Ammonia, nitrate, nitrite d. Ammonia, nitrogen, nitrite

Biology & Microbiology

The smooth ER is the primary site for the synthesis of phospholipids and cholesterol needed to make ____

a. DNA b. ATP c. ribosomes d. hormones e. cell membranes

Biology & Microbiology

Small fishes that eat zooplankton are ________

A) primary consumers B) producers C) tertiary consumers D) secondary consumers

Biology & Microbiology