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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. 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
Guard Cells
Autotroph
Photosystem II
Ferrodixin
2. Special chlorophyll molecule is P680 because it absorbs best at 680 nm
Photosystem
Photosystem II
Photosystem I
Calvin Cycle
3. Reduce transpiration and conserve wtaer
Calvin Cycle Steps
Ferrodixin
Waxy Cuticle
Dark REactions
4. Specialized organs that are the principal sites of photosynthesis
Guard
Leaves
Dark Reactions
Dark REactions
5. Contain xylem and phloem bring water to the leaf from the roots (xylem) and carry manufactured food out of the leaf (phloem)
Dark Reactions
Ferrodixin
Veins in leaves
Root
6. 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
Light reactions
Guard
Guard Cells
Calvin Cycle Steps
7. Any organism that manufactures its own organic molecules (glucose - amino acids - and fats) from inorganic materials (CO2 - H2O - and mineral salts).
Stomata
Photoionization
Autotroph
Root
8. 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
Autotroph
Ferrodixin
Palisade
Guard
9. Escape of high-energy electrons from chlorophyll molecules
Grana
Photoionization
Leaves
Waxy Cuticle
10. Thylakoid stacks
Grana
Spongy Layer
Photoionization
Cyclic Electron Flow
11. Fluid matrix of the chloroplast
Stroma
Photosystem I
Dark REactions
Noncyclic Electron Flow
12. 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
Chemosynthesis
Stomata
Noncyclic Electron Flow
Root
13. Stomata open into air spaces that contact an internal moist surface of loosely packed songy layer cells.
Photosynthesis
Palisade
Spongy Layer
Net Reaction for Photosynthesis
14. 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
Veins in leaves
Chloroplast
Dark Reactions
Waxy Cuticle
15. CO2 is the source of carbon for carbohydrate production -product is three-carbon sugar phosphoglyceraledhyde (PGAL) -Similar to Krebs cycle in reverse
Calvin Cycle
Photosystem II
Calvin Cycle Steps
Chloroplast
16. Chlorphyll a molecule is called P700 because it absorbed best at 700nm
Photosystem I
Chemosynthesis
Dark Reactions
Photosystem
17. 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
Autotroph
Palisade
Photosystem I
18. Highly organized plastid containing the chlorophyll pigment that is bounded by two membranes and contains a netowrk of membranes called thylakoid membranes
Autotroph
Chloroplast
Grana
Photosynthesis
19. 6CO2+ 12 H2O + light energy -> C6H12O6 + 6O2 +6H2O
Photosystem I
Photoionization
Root
Net Reaction for Photosynthesis
20. Bacteria form carbohydrates by Use of chemical energy rather than by using the radiant energy of the sun
Calvin Cycle
Spongy Layer
Chemosynthesis
Veins in leaves
21. Surround each of the stomata on the lower surface of the leaves
Guard
Light reactions
Ferrodixin
Spongy Layer
22. One of the early e- carriers in the cyclic photophosporlylation
Ferrodixin
Autotroph
Dark Reactions
Waxy Cuticle
23. Key pathway of light reactions and involves reactions of oth photosystems
Stomata
Noncyclic Electron Flow
Waxy Cuticle
Light reactions
24. The light capturing unit of the thylakoid membrane which is composed of a number of chlorophyll molecules
Photosystem
Veins in leaves
Net Reaction for Photosynthesis
Calvin Cycle
25. 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
Cyclic Electron Flow
Dark Reactions
Veins in leaves
Grana
26. Incorporate CO2 into organi molecules in a process called carbon fixation
Calvin Cycle Steps
Dark REactions
Stomata
Light reactions
27. Convert solar energy into chemical energy in the form of ATP (by photophosphorylation) and NADPH and must take place in light
Veins in leaves
Light reactions
Dark Reactions
Net Reaction for Photosynthesis
28. Openings in the lower epidermis of a leaf that permit diffusion of CO2 - H2o - and oxygen
Autotroph
Photosystem I
Calvin Cycle Steps
Stomata