AP Biology Practice Exam Questions and Answers(GRADED A)

testosterone - ANSWER-readily passes through the cell membrane and binds to a receptor in the cytoplasm. the hormone and receptor then enter the nucleus and act as a transcription factot voltage-gated calcium channels in the membrane open - ANSWER-what is a direct result of depolarizing presynaptic membrane of an axon oxygen gas - ANSWER-in photosynthesis, atom goes from water to pump - ANSWER-whenever this term is used, active transport occurs diffusion - ANSWER-glucose crosses membranes by adrenal glands - ANSWER-release cortisol genes - ANSWER-all cells in your body contain the same the speed that it is degraded - ANSWER-the amount of protein synthesized from mRNA depends on since they are triploid, they cannot generate gametes because homologous pairs cannot line up - ANSWER-why are bananas triploid, seedless, and sterile acrosome reaction - ANSWER-enables the sperm to penetrate the coat of the surrounding ovum