Science Double Award - 4SD0 PearsonEdexcel

Level Of Organisation

Muhtasari

A single cell is remarkable, but a human body contains roughly 37 trillion of them. How do trillions of cells work together to form something as complex as a person? The answer lies in levels of organisation: cells group into tissues, tissues into organs, and organs into systems, each level adding a new layer of coordination.

In this lesson you will trace the hierarchy from organelles inside a single cell all the way up to complete organ systems in animals and plants. Understanding this framework helps you connect every later biology topic, from digestion to gas exchange, to the structures that carry them out.

Malengo

  1. Describe the levels of organisation in organisms: organelles, cells, tissues, organs and systems

Maelezo ya Somo

Your heart is not just a lump of muscle. It is a precisely engineered organ built from layers of specialised tissues, each tissue made from cells that share the same structure and function. Inside every one of those cells, tiny organelles carry out the chemical work that keeps you alive. This hierarchy, from the smallest organelle to the whole organism, is how multicellular life achieves complexity without chaos.

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Tathmini ya Somo

Hongera kwa kukamilisha somo la Level Of Organisation. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.

Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.

Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.

  1. Which is the correct order from smallest to largest? A) Cell, tissue, organ, organelle, organ system B) Organelle, cell, tissue, organ, organ system C) Organ, tissue, cell, organelle, organ system D) Organelle, cell, organ, tissue, organ system Answer: B
  2. A group of similar cells working together to perform one function is called: A) An organ B) An organ system C) A tissue D) An organelle Answer: C
  3. Which of the following is an organ? A) A mitochondrion B) The digestive system C) Muscle tissue D) The heart Answer: D
  4. In a plant, which tissue is mainly responsible for photosynthesis? A) Xylem B) Phloem C) Palisade mesophyll D) Epidermis Answer: C
  5. Which organelle is the site of aerobic respiration? A) Ribosome B) Nucleus C) Chloroplast D) Mitochondrion Answer: D

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Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.

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Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

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