Xylem And Phloem
Muhtasari
A tall tree pulls hundreds of litres of water up from its roots and sends sugar made in its leaves down to its roots, all without a heart or a pump. It does this through two specialised transport tissues running like pipework through every root, stem and leaf: the xylem and the phloem.
In this lesson you will learn exactly what each tissue carries and where to find them in a plant. Extended students will see how the structure of a xylem vessel, hollow, lignified and joined end to end, makes it a perfect water pipe.
Malengo
- [Core] State the functions of xylem and phloem: (a) xylem - transport of water and mineral ions, and support (b) phloem - transport of sucrose and amino acids
- [Core] Identify in diagrams and images the position of xylem and phloem as seen in sections of roots, stems and leaves of non-woody dicotyledonous plants
Maelezo ya Somo
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Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Xylem And Phloem. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Which tissue transports water and mineral ions in a plant? A. phloem B. xylem C. epidermis D. cortex Answer: B
- Phloem transports: A. water only B. mineral ions C. sucrose and amino acids D. oxygen Answer: C
- In a stem, the xylem in a vascular bundle is usually found: A. on the outside of the bundle B. on the inside of the bundle C. in the epidermis D. in the root cap Answer: B
- [Supplement] Xylem vessel walls are strengthened by: A. starch B. cellulose only C. lignin D. protein Answer: C
- [Supplement] A xylem vessel is well suited to transporting water because it is: A. full of cytoplasm B. hollow and joined end to end C. made of many cross walls D. alive and dividing Answer: B
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Xylem And Phloem? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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