Human Digestive System – General Science MCQS ETEA Test

general science mcqs for class 7,

Source of Study: 

General Science Class 7th Chapter # 1 

Specially design for KPK Teaching Post ETEA 

How to prepare yourself for the ETEA Test?

If you want to not only qualify for the test but to get a top position in your district or UC. You should cover all the areas of the targeted study. Therefore we are compiled with great diligence after in-depth research under the supervision of competent experts. First, prepare yourself well, then take the quiz daily on these MCQs. This is the only way to get success after following the above steps.

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Also READ: Science Mcqs Unit 2 Science Mcqs Unit 3 Science Mcqs Unit 4

  1. The digestive system is involved in the breakdown of food into…………………
  • Large molecules
  • water molecules
  • steam molecules
  • small molecules
  1. Food is broken down into simpler, soluble forms for absorption in the bloodstream called…………….
  • Digestion                       
  • respiration         
  • burning               
  • absorption
  1. During digestion, large and complex molecules are broken down into smaller and simple molecules both……………
  • Physically and mechanically
  • chemically and simply       
  • mechanically and chemically             
  • physically and complex
  1. ………. Involves the breaking down of large pieces of food into smaller pieces.
  • Chemical digestion            
  • Mechanical digestion        
  • absorption          
  • burning
  1. Mechanical digestion starts in the oral cavity through chewing by …………….
  • Stomach             
  • tongue   
  • teeth
  • lips
  1. ……………. Takes place through the action of different enzymes, produced by digestive glands.
  • Chemical digestion             
  • Mechanical digestion        
  • absorption          
  • burning
  1. Digestive glands consist of …………
  • Heart and vessels  
  •  liver and pancreas             
  • sphincter muscles              
  • hollow muscular tubes
  1. The part of the digestive system which is a continuous tube starts from the mouth and ends at the anus ………………..
  • Buccal
  • oesphagus          
  • stomach             
  • alimentary canal
  1. ………… glands which secrete saliva are present in the mouth.
  • Liver   
  • pancreas            
  • Salivary gland    
  • stomach wall
  1. The soft past of food is called ………..
  • Soft food            
  • bolus  
  • sphincter             
  • juices
  1. The process of swallowing is supported by the …………..
  • Tongue
  • lips     
  • liver    
  • tongue and lips
  1. A long narrow and hollow muscular tube which carries the bolus from mouth cavity to the stomach ………..
  • Sphincter            
  • oesophagus        
  • buccal                 
  • alimentary canal
  1. The oesophagus is long ………… and parallel to the trachea.
  • 20-30  
  • 25-30  
  • 15-25  
  • 30-35
  1. Both ends of the oesophagus are tightly closed by ……….
  • Cardiac muscles 
  • smooth muscles
  • Sphincter muscles              
  • chyme
  1. The walls of the stomach secrete the juice which includes enzymes and other chemicals are called ……….
  • Gastric juice       
  • saliva  
  • chyme
  • villi
  1. Gastric juice help in the chemical breakdown of …………..in the food and kills unwanted bacteria (germs).
  • Sugar  
  • proteins               
  • fats     
  • all food
  1. When food leaves the stomach, it is transformed into a semi-liquid mass called ………..
  • Buccal
  • sphincter            
  • chyme
  • villi
  1. Small intestine is long ……. Narrow and coiled tube.
  • 2-4 meter           
  • 3-6 meter           
  • 4-7 meter           
  • 6-8 meter
  1. The liver and pancreas juices enter into the small intestine ……….
  • First part            
  •  middle part        
  • last part             
  • whole intestine
  1. Complete the digestion of food in the ………
  • Stomach  
  • small intestine   
  • large intestine   
  • blood
  1. …….. help in the absorption of the digested food into blood through capillaries.
  •  Buccal
  • sphincter            
  • chyme
  • villi
  1. The last part of the digestive system is ……………
  • Stomach  
  • small intestine   
  • large intestine   
  • blood
  1. Water and minerals are reabsorbed in ……………
  • Stomach               
  • large intestine    
  • small intestine                 
  • blood
  1. The undigested food is stored in ……….. before it is excreted through the anus.
  •  Stomach              
  • large intestine    
  • small intestine 
  • rectum
  1. Largest and heaviest digestive gland is ………..
  • Mouth
  • liver    
  • pancreas            
  • stomach
  1. Liver secretes a digestive juice called ………..
  • Bile     
  • saliva  
  • gastric
  • chyme
  1.  ………Special types of proteins produced by the body, speeding up specific chemical reaction in the body.
  • Liver   
  • pancreas            
  • stomach             
  • enzymes
  1. Near to the first part of the small intestine which secretes pancreatic juices …………..
  • Liver   
  • pancreas             
  • stomach             
  • enzymes
  1. Pancreatic juices function ……….
  • Breakdown of sugars and killing germs            
  • Breakdown of proteins and killing germs
  • Breakdown of Fats into small molecules         
  • Breakdown of proteins and sugars
  1. Liver secretes bile which……………
  • Breakdown of sugars and killing germs            
  • Breakdown of proteins and killing germs
  • Breaking of Fats into small molecules             
  • Breakdown of proteins and sugars
  1. Stomach wall secretes Gastric juice which ……….
  • Breakdown of sugars and killing germs            
  • Breakdown of proteins and killing germs
  • Breaking of Fats into small molecules             
  • Breakdown of proteins and sugars
  1. Salivary Glands secrete saliva which ………….
  • Breakdown of sugars and killing germs                       
  • Breakdown of proteins and killing germs
  • Breaking of Fats into small molecules             
  • Breakdown of proteins and sugars
  1. The source of energy …………
  • Sleep  
  • food    
  • exercise              
  • reading
  1. The digested food is absorbed from the small intestine into the ………..
  • Liver   
  • pancreas            
  • stomach             
  • blood
  1. ………… is the frequent discharge of loose, watery fluid from the body.
  • Sweat 
  • constipation       
  • diarrhea             
  • none of these
  1. Drinking contaminated water or food infected by microbes or parasites is caused …………
  • Sweat 
  • constipation       
  • tuberculosis       
  • diarrhea
  1. Diarrhea is a serious illness especially for ………..
  • Adults 
  • birds   
  • babies                
  • animals
  1. A person has hard faeces that are difficult to expel …………
  • constipation       
  • tuberculosis       
  • diarrhea             
  • Pneumonia
  1. ……….. is a physical process
  • Burning   
  • tuberculosis       
  • diarrhea             
  • breathing
  1. Correct sequence of breathing, when the air passes through …………………
  •  Nose, larynx, trachea bronchi, alveoli and lungs             
  • Nose, larynx, bronchi, trachea, alveoli and lungs
  • Nose, larynx, trachea, alveoli, bronchi and lungs             
  • Nose, trachea, larynx, alveoli, bronchi and lungs
  1. The nose consists of two cavities called …………
  • Glottis
  • villi     
  • nostrils
  • muscus
  1. The nostrils remain moist due to the presence of ………….
  • Glottis
  • villi     
  • alveoli
  • muscus
  1. Larynx is also called ………
  • Sound box          
  • Glottis
  • villi     
  • alveoli
  1. Larynx located in ………
  • Mouth
  • nick    
  • nose   
  • belly
  1. Name of the sound producing organ in the larynx is ………..
  • Cochlea   
  • auditory nerve    
  • vocal cord          
  • muscus
  1. Air from the nose passes through the pharynx into the larynx before it enters the ……….
  • trachea    
  • alveoli  
  • bronchi   
  • lungs
  1. Trachea is also called ………. which made of cartilaginous rings
  • Cochlea   
  • auditory nerve    
  • vocal cord           
  • wind pipe
  1. The opening of the trachea is called the ………..
  • Sound box          
  • Glottis
  • villi     
  • alveoli
  1. ………. Closes the glottis during swallowing thus stopping the food from entering into the trachea.
  • Cochlea   
  • auditory nerve    
  • vocal cord           
  • epiglottis
  1. The trachea divides into two branches in the chest cavity, called ………..
  • Nostrils   
  • glottis 
  • bronchi
  • alveoli
  1. Small tube in the lung, Bronchioles which open into air sacs called …………..
  •  Nostrils  
  • glottis 
  • bronchi
  • alveoli
  1. Exchange of gases between the blood and the air takes place in ………..
  • Lungs  
  • bronchi
  • alveoli
  • glottis
  1. Each alveolus is surrounded by many
  • Capillaries          
  • Arteries   
  • veins   
  • cardiac muscles 
  1. Lungs are connected to the pharynx by the ………..
  •  Blood   
  • trachea               
  • alveoli
  • liver
  1. Each lung consists of around ……… million alveoli.
  •  500    
  • 600     
  • 700     
  • 800
  1. ………. Is a very thick, dome-shaped muscular membrane which separates the chest cavity from the abdominal cavity?
  • Ribcage  
  •  liver    
  • lungs  
  • diaphragm
  1. …….. help in the process of breathing.
  • Diaphragm         
  • Ribcage   
  • liver    
  • heart  
  1. When the lungs expand, the air pressure in the ……….. decreases.
  • Diaphragm         
  • Ribcage   
  • thorax
  • heart
  1. During exhalation the pressure on the alveoli …………
  • increases             
  • decreases            
  • normal               
  • no change occur 
  1. Cellular respiration is a ……… process which occurs at body temperature.
  • Fast    
  • similar
  • slow   
  • push
  1. ……… takes food and oxygen to each cell of the body.
  • Lungs  
  • stomach 
  •  heart  
  • blood
  1. in …….. an estimated 10.4 million people fell ill with TB and 1.8 million died of it.
  • 2015   
  • 2016   
  • 2017   
  • 2018
  1. TB is an infection caused by ………..
  • Virus   
  • fungi   
  • bacteria               
  • mosquito
  1. Pneumonia is a lung infection caused by …………….
  • Bacteria  
  • viruses
  • fungi   
  • all of these
  1. The digested food is absorbed into the blood in the
  • Mouth
  • small intestine   
  • stomach             
  • large intestine
  1. The mechanical breakdown of food occurs in the
  • Mouth and stomach           
  • mouth and small intestine
  • mouth
  • stomach            

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