Essays Tagged: "root growth"

Explain roots, stems and leaves in plants.

RootsPrimary Growth of Roots: Growth in LengthA major part of the root is the root cap; the root cap ... part of the root is the root cap; the root cap is the covering on the end that protects the growing root. Cells in the root cap are aware of the direction of gravity and direct the root growth accordi ... n the root cap are aware of the direction of gravity and direct the root growth accordingly. As the root grows the outer cells of the root cap gradually get scraped off, as to be expected when growing ...

(5 pages) 114 2 4.6 Jan/2003

Subjects: Science Essays > Biology > Plant Biology

Plant Growth Hormone Lab Report.

Introduction:Plant hormones and growth regulators are chemicals that affect flowering, aging, root growth, killing of leaves, promotion of stem elongation, color enhancement of fruit, prevention ... ks seed dormancy, and speeds germination. Indoleacetic acid (IAA) stimulates internodal elongation, rooting, and leaf abscission. B-nine reduces internodal elongation. The control substance is the ind ...

(2 pages) 52 0 3.0 Aug/2003

Subjects: Science Essays > Environmental Science

To investigate the effect of phosphate on cell division in root tips.

Planning ExerciseAimTo investigate the effect of phosphate on cell division in root tips.Background knowledgePhosphate ions (macronutrients) are needed large amounts by plants. Th ... knowledgePhosphate ions (macronutrients) are needed large amounts by plants. They are required for root growth. For the root tips cells to divide, mitosis has to occur. Phosphate is needed for produc ... of the sugar phosphate backbone of DNA. Phosphate is therefore necessary in DNA replication.During root growth, membranes also grow and they are made of phospholipids bi-layer which contains phosphat ...

(4 pages) 52 0 4.2 May/2005

Subjects: Science Essays > Biology > Plant Biology

Crop Cover

oys organic matter at surface 3. may damage soil structure 4. changes soil porosity-root growth is restricted 5. earthworm populations are lower 6. suppresses root grow ... nt of available N to the soil. Problems: produce most of the N in the spring; some peas are shallow rooted and subject to drought, vetch can become a weed.b. Legume/grass mixes---additions of ...

(3 pages) 459 0 0.0 Feb/2008

Subjects: Science Essays > Environmental Science