practice midterm 2

practice midterm 2 - BIS 1A-Section B Midterm 2 Fall...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

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

Unformatted text preview: BIS 1A--Section B Midterm 2, Fall Quarter, 2000 Page 1 SECOND MIDTERM EXAMINATION 1. The reactions shown in the diagram at the right occur in the cells of ash tree roots. From the inputs and outputs you can tell which metabolic pathway this is. If you know which pathway it is, you know where in the cell it occurs. Where? a. extracellular space b. cytosol (endoplasm) c. stroma of chloroplasts d. matrix of mitochondria e. thylakoids 2 pyruvic acid 6 H 2 O 6CO 2 2 (GDP+Pi) 2(GTP+H2O) 8 (NADH + H + ) 8 NAD + 2 FAD 2 FADH 2 2. When the roots of the ash tree are flooded, their supply of O 2 is greatly reduced. Under this condition they produce a toxic compound. What is that compound? a. CO 2 b. ethanol c. glucose d. NAD + e. pyruvic acid 3. The compound DNP was used as a weight reducer in the early part of the twentieth century. DNP causes H + to leak from one side of a membrane to the other down its concentration gradient. In mitochondria DNP would tend to inhibit... a. the synthesis of ATP. b. the uptake of O 2 . c. the oxidation of glucose. d. the production of NADH. e. all of the processes listed above. 4. If you draw a diagram that couples photosynthesis and respiration together, you will show that free energy goes into the system as light, and it all comes out as ...(choose the most complete answer)... BIS 1A--Section B Midterm 2, Fall Quarter, 2000 Page 2 a. ATP b. ATP + heat c. glucose + O 2 d. light e. NADH BIS 1A--Section B Midterm 2, Fall Quarter, 2000 Page 3 5. Consider an accessory pigment in an oak leaf that absorbs a green photon. The excitation energy is transferred to the chlorophyll in the reaction center of Photosystem I (PSI). If there is no NADP+ to accept an excited electron from PSI, the energy will be lost by fluorescence, the emission of a light photon. What color will the photon be? a. red b. blue c. green d. ultraviolet e. any of the foregoing 6. In a standard operating photosynthetic system, such as was described in lecture, how many light photons does it take to make one molecule of O 2 ? a. 1 b. 2 c. 4 d. 8 e. It depends on the color of the light....
View Full Document

This test prep was uploaded on 04/18/2008 for the course BIS 1A taught by Professor Gearhart during the Winter '07 term at UC Davis.

Page1 / 10

practice midterm 2 - BIS 1A-Section B Midterm 2 Fall...

This preview shows document pages 1 - 4. Sign up to view the full document.

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