The tissue located between the cortex and the vascular cylinder in a root is called the
a. endodermis.
b. epidermis.
c. meristem.
d. parenchyma
A
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What are organized clusters of membrane proteins that selectively allow substances to cross into and out of the nucleus?
a. nuclear pore b. passive transport protein c. receptor d. nuclear envelope e. ribosome
In order to use the energy stored in sugars, what must the cells must first transfer it to? How does the energy transfer occur?
What will be an ideal response?
ATP is formed when ____ the thylakoid lumen
a. hydrogen ions enter b. hydrogen ions leave c. electrons enter d. electrons leave e. water is split in
Which of the following is an example of a photoautotroph?
A) cyanobacteria in freshwater and marine ecosystems B) mushrooms growing on the side of a dead tree C) bacteria in our mouth D) fungi growing in the refrigerator E) grizzly bears in Alaska