محاضرة علم الأحياء الخلوي: مستوى تنظيم الخلية

64 سم مكعب

تتطلب نسبة السطح إلى الحجم أن تكون الخلايا صغيرة لأن زيادة حجم الخلية يؤدي إلى انخفاض نسبة السطح إلى الحجم.

384 سم مربع

<p>6:1</p> Signup and view all the answers

<p>تحتوي الخلايا النواة الحقيقية على: البنى الخلوية (الميتوكوندريا، الجهاز الجولجي، الشبكة الإندوبلازمية، النواة).</p> Signup and view all the answers

<p>Human Biology is the scientific study of human beings and populations from a biological point of view, including aspects such as evolution, genetics, ecology, anatomy and physiology, development, and nutrition.</p> Signup and view all the answers

<p>All living organisms share several basic characteristics: (1) they are organized, (2) acquire materials and energy, (3) are homeostatic, (4) respond to stimuli, (5) reproduce and grow and develop.</p> Signup and view all the answers

<p>The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.</p> Signup and view all the answers

<p>A molecule is the union of two or more atoms of the same or different elements. It is composed of electrons, protons, and neutrons.</p> Signup and view all the answers

<p>The characteristics of life mentioned in the text include the use of energy, organization, acquisition of materials and energy, homeostasis, response to stimuli, and reproduction with growth and development.</p> Signup and view all the answers