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