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FREE BIOLOGY AND STUDY GAMES ABOUT BIO112 - EXAM
2 Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -61 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: How are conifer eggs fertilized?
Answer:
A pollen grain delivers a sperm nucleus to the egg cell via a pollen tube.
Question 2: Three general characteristics of plants.
Answer:
Eukaryotic, Multicellular, Autotrophic
Question 3: What are Anthophyta?
Answer:
Flowering plants
Question 4: What are two things that make up Phloem?
Answer:
Sieve plates and companion cells
Question 5: Why are fungi useful?
Answer:
They decompose dead organic material, can be used to make antibiotics and other medicines, as well as being edible and used to make things like bread and beer.
Question 6: What is Parenchyma?
Answer:
Abundant cells in the plant body. Alive at maturity, have thin primary cell walls, and retain the ability to divide. These cells do photosynthesis, respiration, gas exchange, secretion, wound repair, and storage.Question 7: What kind of organisms are the closest relatives/ancestors of green plants?
Answer:
Green Algea
Question 8: What are the two types of Schlerenchyma?
Answer:
Fibers and Schlereids
Question 9: Three characteristics that separate plant types.
Answer:
Vascular tissue, seeds, and flowers/fruits
Question 10: Name the kingdom that plants are classified under.
Answer:
Plantae
Question 11: Name two micronutrients and what they are used for.
Answer:
Chlorine: Water balance
Zinc: Hormone production, activates enzymes, stabilized ribosomes
Question 12: What are Coniferophyta?
Answer:
Conifers
Question 13: Where is Dermal tissue found and what is it's function?
Answer:
Is found covering the plant. Secretes a cuticle to protect the plant and prevent water loss.
Question 14: Describe Phloem.
Answer:
It transports dissolved organic compounds, mostly sugars. Phloem sap also contains proteins, RNA, hormones, ions, and sometimes viruses.
Question 15: Explain the pressure flow mechanism.
Answer:
Companion cells load sugar into the Phloem by active transport. Water from the Xylem flows into the Phloem by osmosis and pushes the sugar from sources to sinks. When the sugar reaches the sinks it is unloaded from the sieve tubes into the sink cells.
Question 16: What are the two types of meristems and where would you find them?
Answer:
Apical: Found in roots, also axillary and terminal buds.
Lateral: Found in cork and vascular cambium in wood.
Question 17: What are Bryophyta?
Answer:
Mosses
Question 18: What are Schlereids?
Answer:
A type of Schlerenchyma that have many shapes, but are generally shorter than fibers. These cells create the gritty texture of a pear, they also form hard layers in nutshells, apple cores, and cherry pits.
Question 19: What are the major components of soil?
Answer:
Litter Humus B Horizon C Horizon Bedrock
Question 20: What are Angiosperms? 3
Answer:
Flowering plants-Anthophyta-Magnoliophyta
Question 21: What are the two types of mycorrhizae?
Answer:
Ectomycorrhizae and Endomycorrhizae
Question 22: Describe Xylem
Answer:
It transports water, dissolved minerals, and hormones from the roots to all other plant parts. Cells are elongated and have thick, lignin-rich secondary walls. Dead at maturity.
Question 23: Describe Endomycorrhizae.
Answer:
Found on the inside of the root (half in half out), are found in 90% of vascular plants, without them plant growth can be negatively affected.Question 24: Why are flowering plants colorful and scented, and why are fruits often tasty?
Answer:
It encourages animals and insects to help pollinate the plant and spread its seeds.
Question 25: What are tree rings made of?
Answer:
Vascular tissue
Question 26: What are the three different types of lichen.
Answer:
Crustose, Foliose, and fruticose.
Question 27: Why are fungi often referred to as saprotrophic?
Answer:
They usually degrade dead organic material and absorb the nutrients from it as sustenance.
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