5 Written questions
5 Matching questions
- Guard cells
- Short-day (long-night) plants
- a A specialized epidermal cell in plants that regulates the size of a stoma, allowing gas exchange between the surrounding air and the photosynthetic cells in the leaf
- b The multicellular haploid form in the life cycle of organisms undergoing alternation of generations; mitotically produces haploid gametes that unite and grow into the sporophyte generation
- c - Need a long continuous (14 hrs) dark period to flower
- Will not flower if dark period is interrupted by even a brief flash of light
- Not affect if daytime period is broken by a brief exposure to darkness
- Flower in early spring, late summer, fall
- Ex. Tulips, daffodils, forsythia, chrysanthemums
- d A plant that completes its life cycle in a single year or growing season.
- e one type of bioremediation, the use of living organisms to detoxify polluted sites
5 Multiple choice questions
- An internal timekeeper that controls an organism's biological rhythms; marks time with or without environmental cues, but often requires signals from the environment to remain tuned to an appropriate period.
- Light-colored, water-conducting secondary xylem in a tree
- contains all the essential amino acids, rich in antioxidants and fiber, low in fat, lowers LDLs and triglycerides while maintaining HDLs.
- A plant that completes its life cycle in two years
- zone of cell division, zone of elongation, and the zone of maturation.
5 True/False questions
Essential macronutrients → nine of them; 6 of them: carbon, oxygen, hydrogen, nitrogen, sulfur, and phosphorous are the major ingredients of organic compounds forming the structure of the plant. These six make up almost 98% of a plant's dry weight. The other 3, potassium, calcium, and magnesium, make up 1.5%.
stigma → The sticky tip of a flower's carpel, which traps pollen grains
Structure producing pollen grains → anthers
Monocot characteristics → - A flowering plant whose embryos have a single seed leaf, or cotyledon; parallel veins; vascular bundles are scattered; petals in multiples of 3; fibrous root system.
Lichen → A close association between a fungus and an alga or between a fungus and a cyanobacterium, some of which are known to be beneficial to both partners.