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