Roots and rhizomes



Download 22,65 Kb.
bet1/3
Sana30.12.2021
Hajmi22,65 Kb.
#192222
  1   2   3
Bog'liq
2 5402573558444460599


LESSON 76


The theme: ROOTS AND RHIZOMES

The aim: Development of reading, understanding, oral and translating skills.



ROOTS AND RHIZOMES

Roots and rhizomes are subterranean organs of plants that hold the plants in place and supply them with water and nourishing salts from the soil. It is well known that roots and rhizomes are easily recognized by their appearance, colour, odour and taste as well as by the structure of transverse section. Some medicinal plants (Valerian, Althea, Ginseng etc.) are very valuable by their roots and rhizomes that are used in preparing medicinal forms.

Roots and rhizomes are gathered, washed or freed from earth, crushed or cut into pieces and dried corresponding to each drug dispensary form.

The root is one of the first parts of a plant that starts to grow. A primary root develops from a plant's seed and quickly produces branches called secondary roots. At the tip of each root is a root cap that protects the delicate tip as it pushes through the soil. Threadlike root hairs grow farther back on the root. These hairs greatly increase the plant's ability to absorb water and minerals from the soil.


1. What are the roots and rhizomes? 2. What are the medicinal plants do you know?

Download 22,65 Kb.

Do'stlaringiz bilan baham:
  1   2   3




Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©hozir.org 2024
ma'muriyatiga murojaat qiling

kiriting | ro'yxatdan o'tish
    Bosh sahifa
юртда тантана
Боғда битган
Бугун юртда
Эшитганлар жилманглар
Эшитмадим деманглар
битган бодомлар
Yangiariq tumani
qitish marakazi
Raqamli texnologiyalar
ilishida muhokamadan
tasdiqqa tavsiya
tavsiya etilgan
iqtisodiyot kafedrasi
steiermarkischen landesregierung
asarlaringizni yuboring
o'zingizning asarlaringizni
Iltimos faqat
faqat o'zingizning
steierm rkischen
landesregierung fachabteilung
rkischen landesregierung
hamshira loyihasi
loyihasi mavsum
faolyatining oqibatlari
asosiy adabiyotlar
fakulteti ahborot
ahborot havfsizligi
havfsizligi kafedrasi
fanidan bo’yicha
fakulteti iqtisodiyot
boshqaruv fakulteti
chiqarishda boshqaruv
ishlab chiqarishda
iqtisodiyot fakultet
multiservis tarmoqlari
fanidan asosiy
Uzbek fanidan
mavzulari potok
asosidagi multiservis
'aliyyil a'ziym
billahil 'aliyyil
illaa billahil
quvvata illaa
falah' deganida
Kompyuter savodxonligi
bo’yicha mustaqil
'alal falah'
Hayya 'alal
'alas soloh
Hayya 'alas
mavsum boyicha


yuklab olish