Which of the following processes requires both a carrier protein and energy?
A. facilitated diffusion
B. simple diffusion
C. active transport
D. osmosis
Answer: C
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An environmental testing laboratory is unable to identify a single-celled organism isolated from a well water sample. Inspection of the microorganism with a compound microscope reveals that it uses pseudopodia for movement and is not enclosed within a mineral shell. Based on this information, this organism can be classified to which supergroup?
A. Opisthokonta B. Alveolata C. Amoebozoa D. Rhizaria E. Excavata
Match the following proteins to their function in DNA replication.
A. single-stranded binding proteins B. DNA helicase C. DNA primase D. DNA ligase E. DNA polymerase
An interaction between species in which one benefits and the other is essentially unaffected is ________
Fill in the blank(s) with correct word
The chromatin is
A) a liquid filling the nucleus. B) the entry and exit point for material into and out of the nucleus. C) a collection of DNA and protein. D) the site where ribosomal subunits begin their development. E) an organelle which is continuous with the nuclear envelope.