Unit Model Paper · Biology Grade 10 · Unit 1 Digestive System

Unit Model Paper · Biology Grade 10 · Unit 1 Digestive System · Athens Academy Islamabad

Built from the Athens Academy study notes for this unit. Every question is tagged to a Unit 1 SLO (B-10-R-01 to B-10-R-07). A star ★ marks a question that is exam-focused — likely, important, or seen in past papers.

Section AMultiple Choice Questions

Attempt all 12 questions. Each question carries 1 mark. Total 12 marks. This section is compulsory and is collected in the first 20 minutes.

MCQ preparation — practise online

No MCQs are printed on this paper. Practise them in the Athens Academy portal, where answers are marked instantly and your weak areas are tracked:

Unit 1 MCQ Bank — full question set for this unit
Online Quiz — timed attempt, mixed difficulty
Flashcards — enzymes, definitions and gut disorders

Section BShort Questions

Attempt any 11 out of 12 questions. Each question carries 3 marks. Total 33 marks. A star ★ marks a question that is exam-focused.

		Question
1	★	Define ingestion, absorption and assimilation. State clearly how absorption differs from assimilation.B-10-R-01
2	★	Name the two sets of organs that make up the human digestive system, and list the parts of each set.B-10-R-02
3	★	Name the two openings of the stomach. State what each connects and the sphincter that guards it.B-10-R-02
4	★	Write the function of each of the four types of teeth.B-10-R-02
5	★	Name the three pairs of salivary glands and state the position of each.B-10-R-02
6	★	Describe the role of the epiglottis during swallowing. State what would happen if it failed to act.B-10-R-03
7	★	Define peristalsis. Name the muscle that contracts behind the bolus and the muscle that contracts ahead of it.B-10-R-03
8	★	Why is pepsin secreted in the inactive form pepsinogen? Give the two ways the stomach protects its own wall.B-10-R-04
9	★	State the three functions of hydrochloric acid in the stomach.B-10-R-04
10	★	Bile contains no enzyme, yet fat digestion is much slower without it. Explain why.B-10-R-04
11	★	Why is pepsin unable to perform its enzymatic activity in the small intestine?B-10-R-04
12	★	Name the structure in the villus that absorbs glycerol and fatty acids, and the structure that absorbs simple sugars and amino acids. State the two processes by which absorption occurs.B-10-R-06

Section CLong Questions

Attempt any 2 out of 3 questions. Each question carries 10 marks. Total 20 marks. Each sub-part carries at least 4 marks.

Question 1

(a) Describe the structures of the main regions of the alimentary canal, from the mouth to the anus. Include the length of the oesophagus, the small intestine and the large intestine.B-10-R-02

(b) Describe the process of peristalsis, stating which muscle contracts behind the bolus and which contracts ahead of it.B-10-R-03

Question 2

(a) Draw a labelled diagram of the longitudinal section of a villus. Label at least five structures.B-10-R-06

(b) Using your diagram, explain how the villus is suited for absorption. State the role of the capillary network and the lacteal, and name the vein that carries absorbed food to the liver.B-10-R-06

Question 3

(a) Describe how digestion takes place in the small intestine. Name the three secretions released into the duodenum and the enzymes each contributes.B-10-R-04

(b) Write the symptoms, causes, treatment and prevention of constipation.B-10-R-07

Section DBoard Marking Pattern

This section is not attempted. It explains how the board distributes marks across Sections A, B and C so you can plan your time.

Section	Question type	Attempt	Marks
A	Multiple choice	All 12 — compulsory	12 × 1 = 12
B	Short response	Any 11 of 12	11 × 3 = 33
C	Long response	Any 2 of 3	2 × 10 = 20
Total (Theory)			65

Practical marks (10) are assessed separately and do not form part of this theory paper.

Exam tip — choosing your questions

Do not answer in printed order. Spend the first two minutes reading Sections B and C, and tick the questions you can answer fully. In Section C you attempt only 2 of 3 — choosing the right two is worth more than writing fast. A question you know completely will always score higher than one you half-remember, so pick on confidence, not on how short the question looks.

Section A is collected in the first 20 minutes. Do it first, quickly, and do not leave any MCQ blank.

Athens Academy Islamabad · Unit Model Paper · Biology · Grade 10 · Unit 1 · Digestive System · FBISE · Exam 2027

📃 Chapter 1 · Digestive System — Chapter Model Paper

Digestive System Model Paper