How do you describe this type of transport across the cell membrane?
A. active transport
B. passive transport
C. facilitated diffusion
D. co-transport
Answer: A. active transport
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4. Structures that are shed in one piece include
(a) the cuticle of roundworms. (b) the exoskeleton of arthropods. (c) human hair. (d) all of the above.
The carboxyl group can exist in an ionized form and also in a nonionized form
__________________Indicate whether the statement is true or false.
The jumping of a nerve impulse from one node of Ranvier to the next is known as ________
Fill in the blank(s) with correct word
Answer the following questions true (T) or false (F)
1. Plants perform only photosynthesis, not cellular respiration. 2. Most plant leaves appear green because they absorb green light. 3. Photosynthesis forms ATP using oxidation-reduction reactions similar to those seen in the electron transport chain of respiration.