1201 Exam Review

1201 Exam Review - B iology Final Questions 1. Weakest...

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Biology Final Questions 1. Weakest bond— hydrogen 2. Action pot. Uses channels before pumps 3. Hyper--- K 4. Depol--- Na 5. Hormones- all of the following true except: my answer was communication from organism to organism 6. Target cells- have specific receptors ; only cells with receptors for a particular secreted molecule are target cells 7. Sensory adaptation – the tendency for sensory neurons to become less sensitive when stimulated repeatly. 8. In a voltage gated K+ channel, there are ___ gates 1 9. In voltage gated Na+ how many gates are there? 2 10. Krebs cycle substrate level ATP; Glycolysis- substrate level; Electron transport chain- oxidative phosphorylation 11. Glycolysis takes place in the ____ cytoplasm; Kreb cycle takes place in the mito chondrial matrix in eukaryotes and cytosol of prokaryotes. Electron transport chain – in eukaryotes inner membrane of mitochondria, and in prokaryotes it takes place in plasma membrane. 12. Photosynthesis- something in the beginning of the picture where light strikes- photosystem II 13. Where is the pituitary gland located? Chest, top of throat, above kidney? In the back of the brain 14. Chemical signaling in plants work in…- choices antagonistic pairs, other pairs 15. Leg pic from online quiz- motor neuron, sensory neuron, … pg. 1066 16. What is the longest part of a neuron? Axon ? Dendrites?
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17. What makes up the CNS? Brain and spinal cord , spinal nerves, motor and sensory neurons, all of the above? 18. Phenotypic ratio of Dd, Ff X dd, Ff. what percentage of offspring will have dd, Ff? 1/4 19. If two pea seeds are heterozygous to dominant yellow pea seeds, what is the expected ratio for the offspring to have yellow: green? 3:1 20. Protein signal molecules affect target cells because they have the receptors that are specific to that molecule 21. Picture of some x ray looking thing and they asked about lengths of letters pg. 1107 22. What’s affect when muscle contracts? (what letter) 23. Picture of like rod and cones , horizontal cell, amacrine cell pg. 1104 24. Ca++; determines if the muscles contracted or not. When bound to the troponin, they expose myosin-binding sites and allow myosin heads to bind to actin and pull towards center of sacromere. If there is no Ca++; then the muscle is relaxed—no contraction. 25. Excited neurons-
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1201 Exam Review - B iology Final Questions 1. Weakest...

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