Saturday, November 7, 2009

Sample QS Mangrove swamp

Diagram 2 shows the shoreline profile of a mangrove swamp and its plants.
Rajah 2 menunjukkan profil pesisir pantai paya bakau dan tumbuhan yang tumbuh.

(a) State the type of seedlings produced by the mangrove trees
Explain how this type of this seedling increases the chances of survival of the mangrove trees. [2m]
Nyatakan jenis biji benih yang dihasilkan oleh tumbuhan paya bakau. Terangkan bagaimana jenis biji benih menambahkan peluang kemandirian pokok paya bakau.

(b)State a species of mangrove tree found in zone A [1m]
Nyatakan spesies pokok bakau yang didapati di zone A

(c)Name the root system possessed by the mangrove tree in zone A [1m]
Namakan sistem akar yang dipunyai oleh pokok bakau di zone A

(d)Name the structure found in the root system of mangrove trees that inhabit zone A.[1m]
Namakan struktur yang terdapat pada sistem akar pokok paya bakau yang mendiami zon A.

(e)State three reasons why the mangroves swamp is not colonized by many plant.[3m]
Nyatakan tiga alasan mengapa paya bakau tidak di tumbuhi oleh banyak jenis tumbuhan

(f) Explain how the mangrove trees adapt to the salty habitat. [2m]
Terangkan bagaimana pokok paya bakau menyesuaikan diri dengan habitat yang masin.

(g)State the importance of the mangrove swamp in the food web of aquatic living things. [1m]
Nyatakan kepentingan paya bakau dalam rantaian makanan hidupan haiwan akuatik

(h)Name the type of forest formed when succession in mangrove swamp areas reaches its climax?
Namakan jenis hutan yang akan terbentuk apabila penyesaran di dalam kawasan paya bakau mencapai klimaks?

Suggested Answer:

(a)Viviparous seedling
-can float horizontally on the water
-subsequently get washed up on the sand or mudflats

(b)- Avicennia sp
-Sonneratia sp

(c)- Pneumatophores

(d) Have openings known as lenticels for breathing

(e) Muddy soft soil
- Very low level of Oxygen
- Very high concentration of salt
- Exposed to very high intensities of sunlight
- Strong winds

(f) the root cells of mangrove trees have a higher osmotic pressure than the surrounding salt water.
the leave are succulent and able to store water.

(g) Mangrove swamps are the confluence of mud and silt and become a source of food for living thing of sea

(e)Tropical rainforest

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