Answer the following questions true (T) or false (F)

1. To move a molecule into a cell against the concentration gradient requires energy.

2. Exocytosis is an example of active transport of a substance into the cell.

3. Phagocytosis is an example of passive transport.


1. TRUE
2. FALSE
3. FALSE

Biology & Microbiology

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Through the process of ____ , some bacteria or archaeons derive energy by combining NH4 + and NO2 - (recall the equation NH4 + + NO2 - N2 + 2H2O)

Fill in the blank with the appropriate word.

Biology & Microbiology

____ are good examples of consumers

a. Omnivores b. Detritivores c. Herbivores d. Carnivores. e. All of the above.

Biology & Microbiology

Which of the following is a key feature of chordates?

a. having a notochord in the embryonic stage b. possessing many rows of tube feet c. having thin arms that lack organs d. engaging in intracellular digestion

Biology & Microbiology

The most common mode for the transmission of Schistosoma haematobium is ________.

A. contaminated meat B. opportunism C. contaminated water D. fecal-oral route E. fomites

Biology & Microbiology