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