Science Single Award - 4SS0 PearsonEdexcel

Cell Structure

Gbogbo ọrọ náà

Every living organism is built from cells, yet most cells are far too small to see with the naked eye. Under a microscope, however, each cell reveals a busy interior packed with specialised structures, each with its own job to do.

In this lesson you will learn to identify and describe the key structures found inside animal and plant cells, explain the function of each organelle, and compare the two cell types. These are core specification points tested across both Paper 1 and Paper 2.

Ebumnobi

  1. Describe cell structures, including the nucleus, cytoplasm, cell membrane, cell wall, mitochondria, chloroplasts and vacuole
  2. Describe the functions of the nucleus, cytoplasm, cell membrane, cell wall, mitochondria, chloroplasts and vacuole
  3. Know the similarities and differences in the structure of plant and animal cells

Maapụ uche

E seela isiokwu a ka ị hụ otu echiche si ejikọta.

Mepee maapụ uche na ngwa

Kaadị ncheta

Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.

Mee omume kaadị ndị a na ngwa

Akwụkwọ Ọmụmụ

Robert Hooke first saw cells in 1665 when he sliced a thin piece of cork and peered at it through an early microscope. What he saw were tiny box-like compartments - he called them 'cells' because they reminded him of monks' rooms in a monastery. Today we know that every living organism is made of one or more cells, and that each cell contains a set of structures that keep it alive. Understanding those structures is the starting point for almost every topic in biology.

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Nnyocha Ọmụmụ

Ekele diri gi maka imecha ihe karịrị na Cell Structure. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

  1. Which organelle controls the activities of the cell? A) Mitochondria B) Cell membrane C) Nucleus D) Ribosome Answer: C
  2. Which structure is found in plant cells but NOT in animal cells? A) Nucleus B) Cell membrane C) Mitochondria D) Cell wall Answer: D
  3. What is the function of mitochondria? A) Photosynthesis B) Protein synthesis C) Aerobic respiration D) Controlling what enters the cell Answer: C
  4. The cell wall of a plant cell is made of: A) Protein B) Cellulose C) Starch D) Chlorophyll Answer: B
  5. Which of the following is a function of the large permanent vacuole in a plant cell? A) Releasing energy B) Carrying out photosynthesis C) Making proteins D) Maintaining the shape of the cell Answer: D

Rue ajuju ndi a n'ime ngwa ahu

Rue ajuju ndi a n'ime ngwa ahu

Meecha Ajụjụ Ule Ọmarịcha

Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Cell Structure? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.

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