Biology (9-1) - 0970 CIE

Digestive System

Muhtasari

Every meal you eat is far too big and far too solid to enter your blood. A bowl of rice, a piece of chicken, an apple: each is a mass of huge insoluble molecules. The digestive system is the body's processing line that takes food in at the mouth, breaks it down step by step along a long muscular tube, and delivers small soluble molecules into the blood so every cell can use them.

In this lesson you will tour the alimentary canal and its helper organs, and learn exactly what each region does. You will learn to use the five key words examiners reward: ingestion, digestion, absorption, assimilation and egestion, and to place every organ inside that story so you can answer 'what happens here?' for any part of the gut.

Malengo

  1. Identify in diagrams and images the main organs of the digestive system, limited to: (a) alimentary canal: mouth, oesophagus, stomach, small intestine (duodenum and ileum) and large intestine (colon, rectum, anus) (b) a ssociated organs: salivary glands, pancreas, liver and gall bladder
  2. Describe the functions of the organs of the digestive system listed in 7.2.1, in relation to: (a) ingestion - the taking of substances, e.g. food and drink, into the body (b) digestion - the breakdown of food (c) absorption - the movement of nutrients from the intestines into the blood (d) assimilation - uptake and use of nutrients by cells (e) egestion - the removal of undigested food from the body as faeces

Maelezo ya Somo

Food is the source of all your energy and all your building materials, but raw food is useless to a cell until it has been broken down and absorbed. Understanding the digestive system explains why we chew, why a blocked gall bladder upsets fat digestion, and why food poisoning targets the gut. In the exam, this topic is tested as a labelling and 'state the function' question, so knowing the organs in order and the five processes earns reliable marks.

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Tathmini ya Somo

Hongera kwa kukamilisha somo la Digestive System. 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 organ is an associated organ, NOT part of the alimentary canal? A. stomach B. ileum C. pancreas D. colon Answer: C
  2. The two parts of the small intestine are the: A. colon and rectum B. duodenum and ileum C. stomach and colon D. oesophagus and duodenum Answer: B
  3. The movement of nutrients from the intestines into the blood is called: A. ingestion B. assimilation C. absorption D. egestion Answer: C
  4. Which process is the uptake and use of nutrients by cells? A. digestion B. assimilation C. egestion D. ingestion Answer: B
  5. Bile is stored before use in the: A. liver B. pancreas C. gall bladder D. duodenum Answer: C

Inapatikana kwenye programu ya Green Bridge

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

Maelezo kamili ya masomo yenye michoro
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Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

Inapatikana kwenye programu ya Green Bridge

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

Maelezo kamili ya masomo yenye michoro
Msaidizi wa kujifunza wa AI
Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

Fanya Mazoezi ya Maswali ya Majaribio

Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Digestive System? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.

Pakua Programu Kwenye Google Playstore

Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.

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