Levels of Organisation
1. This question has 4 part(s).
1.1. The table below contains information about several different organ systems.
Use your knowledge of levels of organisation to complete the table.
Organ system | Function | Example of organ | Example of cell |
|---|---|---|---|
Circulatory | Red blood cell | ||
Reproductive | Enabling the production of offspring | Uterus | |
Nervous | Neurone | ||
Digestive | The breakdown of food and absorption of nutrients | Epithelial cell |
1.2. (i) Identify the multicellular level of organisation that is missing from the table in part (a).
(1)
(ii) Name one example of the level of organisation identified in part (i) found in animals.
(1)
1.3. Another example of an organ system is the immune system.
The diagram below shows one of the cells of the immune system, known as a phagocyte. The role of a phagocyte is to engulf and digest pathogens.
(i) Name structures X and Y labelled on the phagocyte.
(2)
(ii) Organelle Z is a lysosome, a granule that contains digestive enzymes.
Suggest why phagocytes contain many lysosomes.
(1)
1.4. The phagocyte shown in (c) works together with other cells and organs in the immune system to carry out its particular function.
Describe the function of the immune system.
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
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