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Test your basic knowledge |
PCAT Biology Autotrophic Nutrition
Start Test
Study First
Subjects
:
pcat
,
biology
Instructions:
Answer 28 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 6CO2+ 12 H2O + light energy -> C6H12O6 + 6O2 +6H2O
Photosystem
Cyclic Electron Flow
Guard Cells
Net Reaction for Photosynthesis
2. Escape of high-energy electrons from chlorophyll molecules
Photosystem II
Photoionization
Veins in leaves
Waxy Cuticle
3. Bacteria form carbohydrates by Use of chemical energy rather than by using the radiant energy of the sun
Photosynthesis
Chemosynthesis
Palisade
Dark REactions
4. Reduce transpiration and conserve wtaer
Photosystem I
Photosystem
Waxy Cuticle
Veins in leaves
5. Special chlorophyll molecule is P680 because it absorbs best at 680 nm
Photosystem II
Calvin Cycle
Photosynthesis
Ferrodixin
6. Stomata open into air spaces that contact an internal moist surface of loosely packed songy layer cells.
Spongy Layer
Chloroplast
Veins in leaves
Photosystem I
7. Highly organized plastid containing the chlorophyll pigment that is bounded by two membranes and contains a netowrk of membranes called thylakoid membranes
Grana
Chloroplast
Spongy Layer
Calvin Cycle Steps
8. Metabolic process where solar energy is trapped - converted to chemical energy - and then subsequently stored in the bonds of plant organic nutrient molecules and takes place in chloroplasts
Photosynthesis
Guard
Net Reaction for Photosynthesis
Root
9. Thylakoid stacks
Stroma
Grana
Dark REactions
Net Reaction for Photosynthesis
10. Specialized organs that are the principal sites of photosynthesis
Light reactions
Leaves
Stroma
Net Reaction for Photosynthesis
11. Regulate the size of stomata opening - which open during the day to admit CO2 for photosynthesis and close them at night to limit loss of water
Grana
Noncyclic Electron Flow
Guard
Guard Cells
12. Openings in the lower epidermis of a leaf that permit diffusion of CO2 - H2o - and oxygen
Veins in leaves
Stomata
Palisade
Ferrodixin
13. The light capturing unit of the thylakoid membrane which is composed of a number of chlorophyll molecules
Leaves
Waxy Cuticle
Root
Photosystem
14. Layer of elongated - chloroplast-containing cells spread over a large surface area. they are directly under the upper epidermis and are well expoed to light
Root
Ferrodixin
Palisade
Calvin Cycle
15. Key pathway of light reactions and involves reactions of oth photosystems
Noncyclic Electron Flow
Stroma
Veins in leaves
Dark REactions
16. Incorporate CO2 into organi molecules in a process called carbon fixation
Cyclic Electron Flow
Dark REactions
Grana
Spongy Layer
17. 1) carbon dioxide is fed into the cycle; in the Krebs cycle it was produce and released 2) reducing power is used during the cycle (NADPH); in the Krebs cycle NADH was removed 3) energy is used in the cycle (conversion of ATP to ADP); in the Krebs cy
Calvin Cycle Steps
Noncyclic Electron Flow
Chemosynthesis
Stomata
18. Use ATP and NADPH produced by the light reactions to reduce CO2 to carbohydrates - primarily glucose (only occur during the day when the light reactions are replenishing the supply of ATP and NADPH -aka carbon-fixation or reduction synthesis reaction
Noncyclic Electron Flow
Photosystem II
Dark Reactions
Stroma
19. Surround each of the stomata on the lower surface of the leaves
Guard
Light reactions
Photosynthesis
Spongy Layer
20. Speicalized epidermal cells with thin-walled rot haris are found in the root and provide an increased surface for absorption of wtaer and minerals by diffusion and active transport
Grana
Root
Stomata
Stroma
21. Excited e- of P700 move along a chain of electron carriers -reactions are harnessed to produce ATp from ADP and Pi in a process called cyclic photophosphorylation
Chemosynthesis
Spongy Layer
Cyclic Electron Flow
Photoionization
22. Convert solar energy into chemical energy in the form of ATP (by photophosphorylation) and NADPH and must take place in light
Autotroph
Light reactions
Calvin Cycle
Chloroplast
23. Any organism that manufactures its own organic molecules (glucose - amino acids - and fats) from inorganic materials (CO2 - H2O - and mineral salts).
Autotroph
Light reactions
Chloroplast
Net Reaction for Photosynthesis
24. Contain xylem and phloem bring water to the leaf from the roots (xylem) and carry manufactured food out of the leaf (phloem)
Grana
Veins in leaves
Net Reaction for Photosynthesis
Autotroph
25. CO2 is the source of carbon for carbohydrate production -product is three-carbon sugar phosphoglyceraledhyde (PGAL) -Similar to Krebs cycle in reverse
Calvin Cycle
Grana
Photoionization
Chloroplast
26. Fluid matrix of the chloroplast
Stomata
Autotroph
Photoionization
Stroma
27. Chlorphyll a molecule is called P700 because it absorbed best at 700nm
Grana
Light reactions
Waxy Cuticle
Photosystem I
28. One of the early e- carriers in the cyclic photophosporlylation
Ferrodixin
Photosynthesis
Leaves
Net Reaction for Photosynthesis