AP BIOLOGY UNIT 2 TEST QUESTIONS
WITH CORRECT ANSWERS
Part of the receptr on the cytoplasmic side serves as an enzyme which catalyses the transfer of phosphate groups from ATP to a certain amino acid on a substrate protein.This is an example of what signal transduction pathway? - Answer-Tyrosine kinase receptor pathway This pathway requires formation of a dimer. - Answer-Tyrosine-kinase pathway The signal molecule that binds to a receptor is typically called a what? - Answer-Ligand What needs to happen to a receptor to initiate the transduction of a signal? - Answer- Conformational change (change in shape) What is the formula for solute potential? - Answer-Ys=-iCRT What is the ionization constant for sucrose? What about NaCl? - Answer-Sucrose = 1 NaCl = 2 What types of cells typically have a pressure potential? What is this due to? - Answer- Plant cells due to a cell wall what is the pressure potential of an open beaker? - Answer-0 How is temperature measured in the water potential equation? - Answer-Kelvin If the temperature was 39 degrees C, what is the temperature in Kelvin? - Answer-312K What is the cell junction of a plant called? - Answer-Plasmodesmata What is the cell junction of an animal cell called? - Answer-Gap junction
- organelles that contain their own DNA separate from the chromosome - Answer-
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Mitochondria and chloroplast What domains fall under prokaryotic cells? - Answer-Bacteria and archaea What are the basic features of all cells? - Answer-Membrane, cytoplasm, chromosomes, ribosomes This organelle synthesizes lipids, metabolizes carbohydrates, detoxifies poison, and stores calcium - Answer-Smooth ER