Riadah Waktu Petang.

Dearest students
Tq so much. Ingatkan antar arnab je ke rumah. Siap cabut rumput sekali, tu yg tak menahan tuh... tema ksih byk2. Tq syahirah, Nad, Arinah, Shida, Afif, Naim, Waki, Amir, Afiq, Fahmi and Faiz. Sbb spent waktu ptg kat umah teacher... n main ngan rabbit. Tapi nape Faiz balik awal. Tak sempat mkn sama2 tadi. Terima kasih sekali lagi. Amir tcer tak dpt nak upload gambo2 tadi, connector tak jumpa laaa

Rabbit Hilangggg

Im so sad. Sampai je sek...terus g tmpt rabbit tapi nape kandang putih nie kosong? Syaza ngan adik mata sampaikan berita yg mengemparkan.Rabbit Ilang .. tapi kata c Syafiq 3G pagi tadi ada masa sebelum dia masuk tandas. Keluar tandas jer.. rabbit kecik hitam dlm kandang putih tu dah ilang. Mcm mana nie... pelajar2 3RK dah round satu sek. semata2 nak locate 2 ekor rabbit tu. Kepada pelajar2 yang terambil rabbit tu... mungkin tiada niat nak mencuri tapi nak buat main2. Kebetulan dah diumumkan rabbit ilang.. mintak laaa tlg letakkan balik rabbit tu. Buat masa nie yang 5 ekor lagi tu dibawah jagaan pelajar 3rk. Yang berkenaan.. please pulangkan balik.

Rabbit or Labbit

Esok genap 5 hari arnab duduk kat bawah tangga tu. Tcer gembira sbb students yg ditugaskan tuk membersih dan menyayangi arnab2 tu menjalankan tanggungjawab dengan baik. Pelajar2 tingkatan 3rk telah ditugaskan tuk memberi makan waktu pagi dan sebelum balik. Tapi ada pelajar yang tidak dikenali memberi makan pada arnab2 tu. Terima kasih kerana menunjukkan kasih sayang yang tak berbelah bagi pada arnab2 tu. Tapi tcer minta pada pelajar yang lain tidak memberi makan. Kita nak arnab2 tu sihat dan bukannya gemuk kerana terlalu banyak makan. Jadual memberi makan telah pun ditugaskan kepada pelajar 3rk. Begitu juga pelajar2 lain... tolong biarkan arnab tu didlam sangkarnya. TQ in advance

3RK AND 3 ALPHA

My dear students,
I just want to remind you about tomorrow extra class. Don't forget and please attend the class. Tq.

Program SaMa (Satu Malaysia Satu Mutualism)

Sweet Memory

Bila laa dpt mcm nie lg. Dah lama tak jumpa Jannah.

Trial PMR

1 month before PMR trial. Hopefully form 3 students prepared and achieve good results.

HOMEWORK

Dear students,
Here is the task. Please pass this to 4 Alpha and 4 Beta students.
2005 - Paper 2 ( Question No 4)
2006 - Paper 2 (Question No 1) & Paper 3 (Question 1)

INTERNAL ENVIRONMENT

INTERNAL ENVIRONMENT - i) Interstitial Fluid (except cellular components of blood and plasma protein)   ii) Blood plasma
Internal Environment must kept constant (homeostasis)
There is two factor to keep the internal environment constant a) physical factor ( i - blood pressure, ii- osmotic pressure, iii - temperature) b) chemical factor ( i - pH value, ii - salt & sugar)
MAINTAINING AN OPTIMAL INTERNAL ENVIRONMENT
1. TEMPERATURE
2. pH VALUE
3. OSMOTIC PRESSURE
4. GLUCOSE LEVEL



Temperature 
1. The Blood Circulatory System ( low temperature-vasoconstriction,  high temperature - vasodilation)

2. The Integumentary System (sweating)

3. The Muscular System (shivering)

4. The Endocrine System


pH Value

1. Nervous System

    a) partial pressure of carbon dioxide increase
    b) pH level drop
    c) blood acidity increase
    d) chemoreceptor cells are stimulated to send impulses to the respiratory center and cardiovascular centre in brain via afferent nerves

2. Circulatory System

Cardiovascular centre, impulses are sent via afferent nerves to a) stimulate the heart to increase cardiac frequency  b) increase rate of circulation of oxygenated blood to tissues

3. Respiratory System

Impulses are sent via afferent nerves to stimulate the lung in order to increase the ventilation rate (breathing rate- remove carbon dioxide and increase oxygen uptake)


Osmotic pressure
Regulated by ( i) Nervous System, ii) Circulatory System, iii) Endocrine System, iv) Excretory System)
i) Nervous System 
a) blood osmotic pressure increase
b) detected by the osmoreceptors in the hypothalamus 
c) Nerve impulse are generated and sent to the posterior pituitary gland to stimulate the release of ADH hormone


ii) Circulatory System
a) ADH is transported by the bloodstream
b) to its target organ (kidney)


iii) Endocrine System
a) ADH increase the permeability of the distal convoluted tubules and collecting ducts
b) more permeable to water
c) facilitates the reabsorption of water from the filtrate into surrounding blood vessels


iv) Excretory System
a) more concentrated urine are excreted
b) decrease in ADH 
c) decrease in water removal
d) large volume of dilute urine is excreted


Glucose Level
Regulated by ( i) Endocrine System, ii) Circulatory System, iii) Digestive System)


i) Endocrine System
a) detected by pancreas (function - as endocrine gland to secrete the hormone insulin)
b) blood sugar level rises - insulin is secreted into the blood and sent to the liver 
c) Insulin cause the liver cells to speed up the oxidation of glucose to carbon dioxide and water through cell respiration
d) Liver also speed up the conversion of glucose to glycogen and fat for storage


ii) Circulatory System
- glucose is sent to the liver by the hepatic portal vein


iii) Digestive System
a) heavy meal - rich in carbohydrates
b) digestive system hydrolyses it into glucose
c) absorbed into the ileum (small intestine)


Please make your own note in form of mind mapping. I will ask you tomorrow. Tq