Bio Lab Wksht & HW Questions 65

Bio Lab Wksht & HW Questions 65 - b. The root...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
60 Obtain a young radish seedling from the side bench. Place the seedling on a slide and carefully trim away the old seed remnants and shoot tissue using a razor blade. Keep ALL of the tissue beneath the seed as this is the root tissue. Observe the root using the dissecting microscope. Make a diagram of the root and label the root hairs . What is their function? Examine a prepared slide showing a longitudinal section through a corn ( Zea) root tip. Look for the following structures, and add them to your root sketch. (Reference: Figure 35.12) Regions of the root: a. The root cap is located at the very tip of the root, covering the root apical meristem. The cells are loosely arranged and not in files or rows. What function does the root cap play?
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: b. The root apical meristem is located behind the root cap. The cells appear to be closely packed and the region is slightly darker in color. c. The epidermis is the outermost layer of cells surrounding the root. d. The vascular tissue (xylem and phloem) forms a central cylinder in the innermost region of the root. Can you identify xylem and phloem cells? e. The ground tissue is the middle tissue layer sandwiched between the vascular tissue and the epidermis. What types of cells would you expect to find here? f. Lateral roots , when present, form away from the root cap. Are any lateral roots present along the length of the primary root? From what region would they originate?...
View Full Document

This note was uploaded on 12/27/2011 for the course BSC 1020 taught by Professor Danmoon during the Fall '11 term at UNF.

Ask a homework question - tutors are online