Online Test — Nutrition in Animals
25 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 25
The taking in of food into the body is called:
Digestion
Ingestion
Absorption
Egestion
Explanation: Ingestion is the first step, the taking in of food, usually through the mouth.
Question 2 of 25
The breaking down of complex food into simple, soluble substances is called:
Ingestion
Digestion
Assimilation
Egestion
Explanation: Digestion breaks complex food into simple, soluble substances.
Question 3 of 25
The passing of digested food into the blood is called:
Absorption
Egestion
Ingestion
Assimilation
Explanation: Absorption is the passage of digested soluble food into the blood.
Question 4 of 25
The removal of undigested food as waste is called:
Absorption
Assimilation
Egestion
Digestion
Explanation: Egestion is the removal of the undigested part of food as waste.
Question 5 of 25
The chemicals in digestive juices that help break down food are called:
Enzymes
Nutrients
Minerals
Hormones
Explanation: Enzymes in digestive juices help break down complex food during digestion.
Question 6 of 25
The long tube through which food passes from mouth to anus is the:
Oesophagus
Alimentary canal
Stomach
Trachea
Explanation: The alimentary canal is the long tube from mouth to anus.
Question 7 of 25
Saliva in the mouth begins the digestion of:
Proteins
Fats
Starch
Minerals
Explanation: Saliva contains an enzyme that begins digesting starch into sugar.
Question 8 of 25
The wave-like movement that pushes food along the food pipe is called:
Digestion
Peristalsis
Absorption
Churning
Explanation: Peristalsis is the rhythmic muscular contraction that moves food along.
Question 9 of 25
The acid present in gastric juice in the stomach is:
Citric acid
Hydrochloric acid
Acetic acid
Sulphuric acid
Explanation: The stomach's gastric juice contains hydrochloric acid.
Question 10 of 25
The digestion of proteins begins in the:
Mouth
Oesophagus
Stomach
Large intestine
Explanation: Protein digestion begins in the stomach with enzymes in gastric juice.
Question 11 of 25
Most of the digestion and absorption of food takes place in the:
Stomach
Small intestine
Large intestine
Oesophagus
Explanation: The small intestine completes digestion and absorbs most of the food.
Question 12 of 25
Bile, which helps digest fats, is produced by the:
Pancreas
Liver
Stomach
Kidney
Explanation: The liver produces bile, stored in the gall bladder, to help digest fats.
Question 13 of 25
The tiny finger-like projections that absorb food in the small intestine are:
Stomata
Villi
Nodules
Glands
Explanation: Villi are finger-like projections that increase surface area for absorption.
Question 14 of 25
Carbohydrates are finally broken down during digestion into:
Amino acids
Glucose
Fatty acids
Proteins
Explanation: Carbohydrates are broken down into glucose (simple sugars).
Question 15 of 25
Pancreatic juice, which digests carbohydrates, proteins, and fats, is made by the:
Liver
Pancreas
Gall bladder
Salivary glands
Explanation: The pancreas produces pancreatic juice containing enzymes for all three food types.
Question 16 of 25
The main function of the large intestine is to absorb:
Glucose
Water and some salts
Proteins
Fats
Explanation: The large intestine mainly absorbs water and some salts, forming faeces.
Question 17 of 25
The removal of undigested waste (faeces) from the body is called:
Absorption
Digestion
Egestion
Ingestion
Explanation: Egestion is the removal of undigested waste through the anus.
Question 18 of 25
The teeth used for cutting and biting food are the:
Molars
Canines
Incisors
Premolars
Explanation: Incisors are the front teeth used for cutting and biting.
Question 19 of 25
Tooth decay is caused by acids produced by mouth bacteria acting on:
Water
Sugary food particles
Fibre
Saliva
Explanation: Bacteria act on sugary food particles to make acids that damage enamel.
Question 20 of 25
Which habit best helps prevent tooth decay?
Eating more sweets
Brushing twice a day
Never visiting a dentist
Avoiding water
Explanation: Brushing twice a day removes food particles and helps prevent tooth decay.
Question 21 of 25
The large stomach chamber where ruminants store and partly digest grass is the:
Rumen
Rectum
Gall bladder
Pancreas
Explanation: The rumen is the chamber where grass is stored and cellulose is broken down.
Question 22 of 25
The chewing of the cud by animals like cows is called:
Ingestion
Rumination
Egestion
Absorption
Explanation: Rumination is the re-chewing of partly digested cud by ruminants.
Question 23 of 25
Bacteria in the rumen help digest which substance in grass?
Protein
Cellulose
Fat
Starch
Explanation: Rumen bacteria break down cellulose, which the ruminant cannot digest alone.
Question 24 of 25
Amoeba captures its food using finger-like extensions called:
Villi
Pseudopodia
Cilia
Tentacles
Explanation: Amoeba uses pseudopodia to surround and engulf food particles.
Question 25 of 25
Inside an Amoeba, food is digested within a structure called the:
Food vacuole
Rumen
Stomach
Nucleus
Explanation: The engulfed food is digested inside a food vacuole in the Amoeba.