A mixed solution of water and small molecules is exposed to a cell membrane and allowed to interact for an hour. Which molecule would be most likely to cross the phospholipid bilayer without the aid of transport proteins and diffuse across the membrane the fastest?
A. Water
B. NH4+
C. NH3
D. CH3COO-
E. Na+
C
Biology & Microbiology
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Rheumatic fever is caused by infections from which genus of bacteria?
a. Streptococcus b. Staphylococcus c. Escherichia d. Micrococcus e. Mycobacterium
Biology & Microbiology
What information can a simple stain give you?
What will be an ideal response?
Biology & Microbiology
The endogeneity problem that results from when a variable correlated with the treatment is not included as a control variable is known as the:
A. instrumental variable. B. weak instruments problem. C. omitted variable bias. D. least efficient estimator.
Biology & Microbiology
________ is a type of neural tube defect in which part of the spinal cord develops abnormally, as does the adjacent area of the spine
Fill in the blank(s) with correct word
Biology & Microbiology