Study

• 1. The organic molecule produced directly by photosynthesis is sugar: a) lipids; b) sugar; c) amino acids; d) DNA
• 2. The photosynthetic process removes carbon dioxide from the environment. a) water; b) sugar; c) oxygen; d) chlorophyll; e) carbon dioxide
• 3. The process of splitting water to release hydrogens and electrons occurs during the light dependent process. a) light dependent; b) light independent; c) carbon fixation; d) carbon photophosphorylation; e) glycolysis
• 4. The process of fixing carbon dioxide into carbohydrates occurs in the light independent process. a) light dependent; b) light independent; c) ATP synthesis; d) carbon photophosphorylation; e) glycolysis
• 5. Carbon dioxide enters the leaf through stamata . a) chloroplasts; b) stomata: c) cuticle; d) mesophyll cells; e) leaf veins
• 6. The cellular transport process by which carbon dioxide enters a leaf (and by which water vapor and oxygen exit) is diffusion . a) osmosis; b) active transport; c. co- transport; d) diffusion; e) bulk flow
• 7. Which of the following creatures would not be an autotroph? Fish a) cactus; b) cyanobacteria; c) fish; d) palm tree; e) phytoplankton
• 8. The process by which most of the world's autotrophs make their food is known as photosynthesis. a) glycolysis; b) photosynthesis; c) chemosynthesis; d) herbivory; e) C-4 cycle
• 9. The process of chemiosmosis is how ADP + P are converted into ATP during the Light dependent process. a) glycolysis; b) Calvin Cycle; c) chemiosmosis; d) substrate-level phosphorylation; e) Kreb's Cycle
• 10. Once ATP is converted into ADP + P, it must be recharged by chemiosmosis. a) disassembled into components (sugar, base, phosphates) and then ressembled; b) recharged by chemiosmosis; c) converted into NADPH; d) processed by the glycolysis process; e) converted from matter into energy.
• 11. Generally speaking, the longer the wavelenght of light, the smaller the available energy of that light. a) smaller; b) greater; c) same
• 12. The section of the electromagnetic spectrum used for photosynthesis is visible light. a) infrared; b) ultraviolet; c) x-ray; d) visible light; e) none of the above
• 13. The colors of light in the visible range (from longest wavelength to shortest) is ROYGBIV. a) ROYGBIV; b) VIBGYOR; c) GRBIYV; d) ROYROGERS; e) EBGDF
• 14. The photosynthetic pigment that is essential for the process to occur is chlorophyll . a) chlorophyll a; b) chlorophyll b; c) beta carotene; d) xanthocyanin; e) fucoxanthin
• 15. When a pigment reflects red light, red light is reflected. a) all colors of light are absorbed; b) all col;ors of light are reflected; c) green light is reflected, all others are absorbed; d) red light is reflected, all others are absorbed; e) red light is absorbed after it is reflected into the internal pigment molecules.
• 16. Chlorophyll a absorbs light energy in the red-orange and blue violet color range. a) yellow-green; b) red-organge; c) blue violet; d) a and b; e) b and c.
• 17. A photosystem is a collection of photosynthetic pigments arranged in a thylakjoid membrane. a) a collection of hydrogen-pumping proteins; b) a collection of photosynthetic pigments arranged in a thylakjoid membrane; c) a series of electron-accepting proteins arranged in the thylakoid membrane; d. found only in prokaryotic organisms; e) multiple copies of chlorophyll a located in the stroma of the chloroplast.
• 18. The individual flattened stacks of membrane material inside the chloroplast are known as thylakoids. a) grana; b) stroma; c) thylakoids; d) cristae; e) matrix
• 19. The fluid-filled area of the chloroplast is the stroma. a) grana; b) stroma; c) thylakoids; d) cristae; e) matrix
• 20. The chloroplast contains all of these except endoplasmic reticulum. a) grana; b) stroma; c) DNA; d) membranes; e) endoplasmic reticulum
• 21. The chloroplasts of plants are most close in size to __. a) unfertilized human eggs; b) human cheek cells; c) human nerve cells; d) bacteria in the human mouth; e) viruses
• 22. Which of these photosynthetic organisms does not have a chloroplast? a) plants; b) red algae; c) cyanobacteria; d) diatoms; e) dinoflagellates
• 23. The photoelectric effect refers to ____. a) emission of electrons from a metal when energy of a critical wavelength strikes the metal; b) absorbtion of electrons from the surrounding environment when energy of a critical wavelength is nearby; c) emission of electrons from a metal when struck by any wavelength of light; d) emission of electrons stored in the daytime when stomata are open at night; e) release of NADPH and ATP energy during the Calvin Cycvle when light iof a specific wavelength strikes the cell.
• 24. Light of the green wavelengths is commonly absorbed by which accessory pigment? a) chlorophyll a; b) chlorophyll b; c) phycocyanin; d) beta carotene
• 25. The function of the electron transport proteins in the thyakoid membranes is ___. a) production of ADP by chemiosmosis; b) production of NADPH by substrate-level phosphorylation; c) pumping of hydrogens into the thylakoid space for later generation of ATP by chemiosmosis; d) pumping of hydrogens into the inner cristae space for later generation of ATP by chemiosmosis; e) preparation of water for eventual incorporation into glucose
• 26. ATP is known as the energy currency of the cell because ____. a) ATP is the most readily usable form of energy for cells; b) ATP passes energy along in an electron transport chain; c) ATP energy is passed to NADPH; d) ATP traps more energy than is produced in its formation; e) only eukaryotic cells use this energy currency.
• 27. Both cyclic and noncyclic photophosphorylation produce ATP. We can infer that the purpose of ATP in photosynthesis is to ____. a) supply hydrogen to the carbohydrate; b) supply carbon to the carbohydrate; c)supply energy that can be used to form a carbohydrate; d) transfer oxygens from the third phosphate group to the carbohydrate molecule; e) convert RuBP into PGA
• 28. The role of NADPH in oxygen-producing photosynthesis is to ____. a) supply hydrogen to the carbohydrate; b) supply carbon to the carbohydrate; c) supply energy that can be used to form a carbohydrate; d) transfer oxygens from the third phosphate group to the carbohydrate molecule; e) convert RuBP into PGA.
• 29. The dark reactions require all of these chemicals to proceed except ___. a) ATP; b) NADPH; c) carbon dioxide; d) RUBP; e) oxygen
• 30. The first stable chemical formed by the Calvin Cycle is _____. a) RUBP; b) RU/18; c) PGA; d) PGAL; e) Rubisco
• 31. The hydrogen in the carbohydrate produced by the Calvin Cycle comes from ___ a.) ATP; b) NADPH; c) the environment if the pH is very acidic; d) a and b; e) a and c
• 32. The carbon incorporated into the carbohydrate comes from ___. a) ATP; b) NADPH; c) carbon dioxide; d) glucose; e) organic molecules
• 33. C-4 photosynthesis is so named because _____. a) it produces a three carbon compound as the first stable product of photosynthesis; b) it produces a four carbon compound as the first stable product of photosynthesis; c) it produces four ATP and four NADPH molecules for carbon fixation.; d) there are only four steps in this form of carbon fixation into carbohydrate.