Gaseous Exchange in Plants

The part labelled X in the diagram is called _____. 

• chlorophyll
• stomata 
• leaf 

The function of the stomata on a leaf is to _______ . 

• turn carbon dioxide into food
• distribute water to all parts of the leaf
• allow exchange of gases to take place
• transport air from one part of the plant to another

Which of the following affects the size of the stomata?

• Temperature
• Intensity of light 
• Presence of wind
• All of the above

Apakah P ?

What is P ?

• Sel pengawal

  Guard cell

• Vakuol

  Vacuole

• Nukleus

  Nucleus

• Stoma

  stoma

Saiz stoma adalah lebih besar pada hari yang panas

The size of stoma is bigger on the hot day

• Benar

  True

• Palsu

  False

Apakah fungsi struktur ini?

What is the function of this structure?

• Pertukaran gas dan pengangkutan mineral

  Gas exchange and transportation of mineral

• Pengangkutan air dan mineral

  Transportation of water and mineral

• Pertukaran mineral dan pengangkutan air

  Mineral exchange and transportation of water

• Pertukaran gas dan mengawal kehilangan air

  Gas exchange and control loss of water

Pilih faktor yang mempengaruhi pembukaan dan penutupan stoma yang betul.

Choose factor that will influences opening and closing of stoma pore.

• Kepekatan gas

  Concentration of gas

• Kesegahan sel pengawal

  Turgidity of cell

• Kuantiti air dalam atmosfera

  Quantity of water in atmosphere

• Kepekatan kandungan glukosa

  Concentration of glucose content

Apakah gas X ?

What is gax X ?

• Oksigen

  Oxygen

• Karbon dioksida

  Carbon dioxide

• Hidrogen

  Hydrogen

• Klorofil

  Chlorophyll

Apakah gas y ?

What is gax y?

• Oksigen

  Oxygen

• Karbon dioksida

  Carbon dioxide

• Hidrogen

  Hydrogen

• Klorofil

  Chlorophyll

Yang manakah betul menerangkan keadaan stoma ini?

Which of the following is correct about the condition of stoma?

• Tidak berlaku fotosintesis

  Does not occur photosynthesis

• Liang stoma tertutup

  Stomatal pore is closed

• Sel pengawal menjadi lurus

  Guard cell become straight

• Berlaku pada waktu siang

  Occur during the day