Pumps are transporters that are able to harness energy provided by other components in the cells to drive the movement of solutes across membranes, against their concentration gradient. This type of transport is called _____________
(a) active transport.
(b) free diffusion.
(c) facilitated diffusion.
(d) passive transport.
(a)
You might also like to view...
The above figure represents which of the following:a
a male with trisomy 21 b. a female with trisomy 21 c. a result caused by the use of colchicine d. a gorilla globin gene spread e. all of these
A molecule consisting of three fatty acid tails attached to glycerol is a(n)
a. carbohydrate. b. nucleic acid. c. triglyceride. d. amino acid. e. oil.
Which of the following statements about monocots is true?
a. They lack sclerenchyma tissue. b. They have a well-developed vascular cambium. c. They do not produce bark. d. Their lateral meristems give rise to wood. e. Secondary growth occurs rather slowly
Which of the following is NOT found in the nucleus?
A. mitochondria B. nucleolus C. chromatin D. DNA