Biology: Digestive System and Eye Function
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Questions and Answers

Which part of the digestive system connects to the liver and pancreas?

  • Esophagus
  • Stomach
  • Small intestine (correct)
  • Large intestine

What type of image is formed on the retina when viewing an object?

  • Virtual and inverted
  • Real and inverted (correct)
  • Real and upright
  • Virtual and upright

Which metal is likely to react violently with cold water?

  • Metal S
  • Metal P
  • Metal R (correct)
  • Metal Q

Which metal needs to be stored using kerosene to prevent reactions?

<p>Metal S (B)</p> Signup and view all the answers

What is the reaction of Metal P with water?

<p>Reacts with steam only (C)</p> Signup and view all the answers

Flashcards

Digestion

The process where the body breaks down food into smaller molecules that can be absorbed by the body.

What are the final products of carbohydrate and protein digestion?

The final products of carbohydrate digestion are simple sugars like glucose. Proteins break down into amino acids.

What does the pancreas secrete and how does it help in fat digestion?

The secretion released by the pancreas is bile. Bile emulsifies fats, breaking them down into smaller droplets for easier digestion.

What's the main process in the large intestine?, Why does diarrhea occur?

The major process in the large intestine is water absorption. In diarrhea, this process is impaired, leading to loose stools.

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Which part of the eye refracts light the most?

The cornea is the transparent outer layer of the eye that refracts light the most, focusing it onto the lens.

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Study Notes

Digestive System

  • The human digestive system consists of hollow organs connected from mouth to anus
  • Organs include mouth, esophagus, stomach, small intestine, large intestine, and anus
  • The system includes associated organs like liver, pancreas, and gall bladder

Eye Structure and Function

  • X is the retina
  • The cornea produces maximum refraction of light rays
  • A real and inverted image is formed on the retina
  • The function of the pupil is to regulate the amount of light that enters the eye

Metal Reactivity

  • Metals P, Q, R, S were tested for reactivity
  • Metal R can be cut with a knife
  • Metal P forms Mâ‚‚O₃ oxide, reacting with both acids and bases
  • P does not react with cold or hot water but reacts with steam
  • Q reacts with hot water and floats
  • R reacts violently with cold water
  • S does not react with water
  • Metal S needs to be stored in kerosene
  • Metal Q is potassium
  • Metal R forms amphoteric oxides
  • The increasing order of reactivity is S < P < Q < R

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Description

Explore the fascinating aspects of the human digestive system, including its organs and associated structures. Additionally, understand the structure and function of the eye, covering key elements such as the retina and pupil. Test your knowledge with this comprehensive quiz!

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