An ATP molecule consists of an adenine, a ribose, and three phosphates.
Answer the following statement true (T) or false (F)
True
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The production of platelets is called _______________
Fill in the blank with correct word.
Cells that respond to peptide hormones usually do so through a sequence of biochemical reactions involving receptor and kinase activation. In order for cells to respond, it is necessary for first and second messengers to communicate. This is possible because ________.
A) peptide hormones always enter the cell membrane and elicit a response without assistance from other messengers B) hormones alter cellular operations through stimulation of a gene directly C) G protein acts as the link between first and second messengers D) the hormone receptor complex moves into the cytoplasm as a unit
The respiratory infection that affects the most people each year is the _________________________.?
Fill in the blank(s) with correct word
The most common type of lever system in the body is the
A) class I lever. B) class II lever. C) class III lever.