Watch complete video answer for “Explain the structure of root hair with the help of neat and ” of Biology Class 12th. Get FREE solutions to all questions from chapter QUESTION BANK.
Root hairTip growthRoot hairs are projections from the epidermal cells of the root that are thought to increase its effective surface area for nutrient and water uptake, enlarge the volume of exploited soil, and aid in anchoring the plant to the soil. Their formation occurs as a series of ...
In addition to appearing to be more metabolically active, root-hair-producing cells had a greater number of plasmodesmatal connections with the underlying outer cortical cells than did adjacent cells that did not produce root hairs. This would suggest that cells that produce root hairs play a ...
Describe the function of root hairs in plants. (a) Describe the structure of the rough ER. (b) Describe its function. Look at the structure of your hand and explain how its structure supports its function. Describe the structure and function of the glycocalyx. ...
Structure of Hair Follicle The portion of a hair above the skin is called the shaft, and all that beneath the surface is the root. The root penetrates deeply into the dermis or hypodermis and ends with a dilation called the hair bulb. The only living cells of a hair are in and near ...
The exhibition isstructuredaround the themes of work and leisure. 展览是围绕工作与休闲的主题来布置的。 牛津词典 Make use of the toys instructuredgroup activities. 在精心安排的分组活动中可以使用这些玩具。 牛津词典 The typical familystructureof Freud's patients involved two parents and two children....
• Sebaceous (oil) gland • Hair follicle • Hair root Figure 4.3 Skin structure. Hair shaft Dermal papillae Epidermis Papillary layer Pore Appendages of skin • Eccrine sweat gland • Arrector pili muscle Dermis Reticular layer • Sebaceous (oil) gland • Hair follicle • Hair root...
5.(Zoology) the fringe of long hair, tapering towards the tip, on the underside of the tail of certain breeds of dog, such as setters 6.(Zoology) the conspicuously marked tail of a deer 7.a less common name forbookmark 8.(Automotive Engineering)AustralandNZthe part of a taximeter that...
A protein may possess predominantly one kind of secondary structure (α-keratin of hair and fibroin of silk contain mostly α-helix and β-pleated sheet, respectively), or a protein may have more than one kind (hemoglobin has both α-helical and non-hydrogen-bonded regions). Globular ...
1.A primary study on the fine structure of the adventitious root tip of Ipomoea batatas(L. ) Lam.;甘薯(Ipomoea batatas(L.)lam)不定根根尖细微结构的初步研究 2.Objective To observe the changes of the shapes and fine structures of human erythrocytes under different osmotic pressures.目的观察不同...