← Plant Unit Test Test
5 Written Questions
5 Matching Questions
- Genetically modified plants
- Zone of cell division
- Guard cells
- capillary action
- 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 An organism that has acquired one or more genes by artificial means. If the gene is from another species, the organism is also known as a transgenic organism; little genetic variability; monocultures; wiped out by one disease.
- c - the tendency of liquid to rise inside a narrow tube; xylemnarrow, capillary-type tubes, strong attraction between water and the cell walls; several centimeters.
- d Light-colored, water-conducting secondary xylem in a tree
- e includes the apical meristem and cells that derive from it; new root cells are produced in this region, including the cells of the root cap.
5 Multiple Choice Questions
- water is pulled up the xylem as water evaporates from leaves due to adhesion and cohesion.
- - 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.
- The densely branched network of hyphae in a fungus
- A study of how animals medicate themselves with plants
- - threadlike filaments that make up the body of a fungus
5 True/False Questions
Benefits of soy → contains all the essential amino acids, rich in antioxidants and fiber, low in fat, lowers LDLs and triglycerides while maintaining HDLs.
Bryophyte groups → nonvascular; mosses; apical meristems; embryophytes; lack true roots/ stems; no lignified cell walls lack support; grow close to the ground; need water for fertilization
heartwood → - In the center of trees, the darkened, older layers of secondary xylem made up of cells that no longer transport water and are clogged with resins.
Zone of elongation → root cells elongate, sometimes to more than ten times their original length; it is cell elongation that pushes the root tip farther into the soil; the cells lengthen, rather than expand equally in all directions, because of the circular arrangement of cellulose fibers in parallel bands in their cell walls. The cells elongate by taking up water and the cellulose fibers separate
First emerging structure of a dicot seed → the root