Study Qs - physiology_sp'10

Study Qs - physiology_sp'10 - Study Qs Physiology Selected...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Study Qs – Physiology Selected Questions from Campbell & Reece, Biology (8e) Chap 40: Concept Check: 40.1 (3), 40.2 (1, 2) End of Chapter: 7 Chap 45: Concept Check: 45.1, 45.2, 45.3 End of Chapter: 1, 2, 3, 5, 7 Chap 48: Concept Check: 48.1, 48.2, 48.3 (1, 2), 48.4, End of Chapter: 1 - 10 Chap 50: Concept Check: 50.1, 50.2 End of Chapter: 1, 2, 3, 5, 6 1. Poor Dr. Westwood took a vacation in Australia to recuperate from his experiences with the pufferfish and the pitohui. While snorkeling near the Great Barrier Reef, he began to feel an uncomfortable numbness and paralysis. It’s possible that he was stung by a cone snail and injected with Conotoxin, which blocks voltage-gated calcium channels . Describe one way in which this toxin could cause Dr. Westwood’s paralysis. 2. The figure below shows an experimental setup with two neurons and a muscle cell. You have inserted a stimulating electrode with which you can depolarize neuron 1. You also have inserted 3 voltage recording electrodes with which you can measure membrane potential in the first neuron (electrode A), in the second neuron (electrode B) and in the muscle cell itself (electrode C). Under control conditions a stimulation causes the muscle cell to contract. For each of the conditions listed below, indicate what you would expect
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

Study Qs - physiology_sp'10 - Study Qs Physiology Selected...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online