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