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