Title: Quiz 7 Seeds, seedlings and crop roots
Course: MASTER-AGRI-1131-WB-Fairley > Section: Module 7 – Seeds, Seeding & Crop Roots

The exam contains 20 multiple choices and true/false questions. Students will have one attempt and a 25 minute time limit to complete the quiz.

Q: Roots that originate from other root tissue are:
- Adventitious Roots
- Seminal Roots
- Brace Roots
- Tap Root
A: Adventitious Roots
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: What are the 4 conditions affecting germination, choose the 4 that are correct:
- Seed age, Storage temperature, Oxygen, Water
- Oxygen, Light Humidity, Seed Age
- Light, Storage temperature, Seed Age, Oxygen
- Light, Oxygen, Temperature, Water
A: Light, Oxygen, Temperature, Water
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: These are seed roots that originate from the embryo.
- Adventitious Roots
- Seminal Roots
- Brace Roots
- Tap Root
A: Seminal Roots
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: Another name for these roots is prop roots.
- Adventitious Roots
- Seminal Roots
- Brace Roots
- Tap Root
A: Brace Roots
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: Roots have 3 main functions when it comes to nutrients, which are the correct 3?
- Absorption, Transportation, Storage
- Storage, Absorption, Respiration
- Translocation, Storage, Transportation
- Transportation, Storage, Respiration
A: Absorption, Transportation, Storage
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: What is the relationship called that Rhizobia bacteria and legume roots have?
- Optimum
- Distribution
- Aeration
- Symbiotic
A: Symbiotic
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: The bottom ¼ of the root zone has what % of absorption?
- 40%
- 10%
- 20%
- 50%
A: 10%
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: The top ¼ of the root zone has what % of absorption?
- 40%
- 10%
- 20%
- 50%
A: 40%
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: What is the first embryonic root to emerge from the seed during germination?
- Coleorhiza
- Plumule
- Radicle
- Cotyledon
A: Radicle
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: The capacity of a seed to germinate is:
- Viability
- Meristematic
- Apical
- None of the answers are correct
A: Viability
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: How many stages are there for germination?
- 4
- 3
- 6
- 5
A: 3
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: The process of exposing the dormant seed to alternating hot and cold, or wet and
dry conditions is
- Stratification
- Scarification
- Physical Dormancy
- None of the answers are correct
A: Stratification
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: All seeds are the same color, size and shape.
- True
- False
A: False

Q: Root growth can be prohibited by barriers such as, rock, gravel, subsoil, or heavy clay soil.
- True
- False
A: True

Q: pH plays no role in root growth and development.
- True
- False
A: False

Q: Under anaerobic conditions, roots and soil organisms can produce toxins that inhibit
growth.
- True
- False
A: True

Q: Seed size does determine the size of the plant that will be produced.
- True
- False
A: False

Q: Seed color is highly variable between crops and even between varieties of the same crop.
- True
- False
A: True

Q: The epicotyl is embryonic stem above the cotyledons and below the plumule, while the hypocotyl is the embryonic stem below the cotyledons and above the radicle?
- True
- False
A: True

Q: Hypogeal emergence leaves the cotyleddons in the soil, while the Epigeal emergence pushes the cotyledon’s above the soil surface.
- True
- False
A: True