Which type of membrane proteins allow cells to identify one another?
A. Receptor proteins
B. Channel protein
C. Marker molecules
D. Carrier proteins
E. Enzymes
Answer: C
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Neurons conduct action potentials (nerve impulses), but neuroglia do not.
Answer the following statement true (T) or false (F)
Ovulation is stimulated by which hormone?
A. FSH B. LH C. Estrogen D. Progesterone
Place the steps of translation in the correct order, starting with what happens first.
• the tRNA is released from the ribosome and is now available to pick up another amino acid • the ribosome binds mRNA • a new amino acid is linked to the growing peptide chain • a tRNA anticodon binds to a complementary mRNA codon
The micturition reflex center is in the
A) hypothalamus. B) pons. C) sacral segments of the spinal cord. D) medulla oblongata.