Which of the following is not an organelle of eukaryotic animal cell?
Nucleolus
Ribosomes
Peroxisomes
Chloroplast
Mitochondria
Which of the following is not true about the function of proteins in the plasma membrane?
Enzymatic activity
Separate chromosomes
Cell-to-cell recognition
Cell-to-cell attachment
Signal transduction
Which of the following is not a stage of cell signaling?
Transduction
Reception
Transformation
Response
Which of the following is not a cell membrane receptors?
Hormone-receptor complex
G protein-coupled receptors
Ion-channel receptors
Receptor tyrosine kinases
Which of the following is a second messenger in cell signaling?
GTP
Ligand
ATP
cAMP
Protein kinase