الفصل 3: الخلايا وتركيبها ووظائف اجزائها cells structure & Functions

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Presentation transcript:

الفصل 3: الخلايا وتركيبها ووظائف اجزائها cells structure & Functions القسم 3.2 :أجزاء الخلية الحقيقية النواة (الغشاء الخلوي) Cell membrane structure & Function

الأهداف: Lesson Outcomes 1- التعرف على وظائف الغشاء الخلوي 1- Identify the Function of the Cell Membrane 2- وصف تركيب الغشاء الخلوي 2- Describe the structure of Cell Membrane

Keywords Keywords Arabic Selective Permeability النفاذية الانتقائية Peripheral Proteins البروتينات الطرفية Integral Proteins البروتينات الغائرة Fluid Mosaic Model النموذج الفسيفسائي المائع

Basic Cell components Cell membrane Nucleus Cytoplasm

ماهي وظائف الغشاء الخلوي Actv 1 نشاط 1 ماهي وظائف الغشاء الخلوي Think, Pair, Share

عللي يتكون الغشاء من طبقتين مزدوجتين من الدهون المفسفرة؟ Why double layer عللي يتكون الغشاء من طبقتين مزدوجتين من الدهون المفسفرة؟ بما أن الخلية تسبح في بيئة مائية وداخلها يوجد الستوبلازم والذي هو أيضا عبارة عن ماء تتشكل الدهون في صورة طبقتين بحيث تصبح الذيول الكارهة للماء بعيدة عنه

الطبقتين المزدوجتين من الدهون المفسفرة في الغشاء الخلوي

تركيب الغشاء الخلوي

النموذج الفسيفسائي المائع Fluid mosaic model النموذج الفسيفسائي المائع هو المبدأ الذي ينص على أن دهون الغشاء وبروتيناته تتحرك حركة جانبية مستمرة

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