alleryStart learning →Which teeth are best suited to grinding food into a paste?
- Molar teeth
- Incisor teeth
- Canine teeth
- Milk incisors
Show answer and solution
Correct answer: A. Molar teeth
Broad molars and premolars crush and grind food during chewing.
Olympiad (Class 7) Nutrition in plants and animals — practice questions — page 2
Explore 60 free Nutrition in plants and animals questions in Olympiad (Class 7) Science. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 31–60 of 60.
Which teeth are best suited to grinding food into a paste?Read the answer and worked solution →Under the hard enamel, a tooth is made of a bone-like material calledRead the answer and worked solution →Why is food chewed into small bits before it is swallowed?Read the answer and worked solution →Where is bile stored until food arrives in the duodenum?Read the answer and worked solution →Which food component does bile break into tiny droplets?Read the answer and worked solution →Which organ makes bile?Read the answer and worked solution →In which part of the gut does most food digestion take place?Read the answer and worked solution →How do villi help the small intestine absorb food?Read the answer and worked solution →In which order does food pass through the small intestine?Read the answer and worked solution →What is the semi-solid waste left after absorption called?Read the answer and worked solution →Which part of the gut holds digested residue for 30 to 40 hours?Read the answer and worked solution →Which helps ferment leftover food in the human large intestine?Read the answer and worked solution →The appendix is attached to which part of the gut?Read the answer and worked solution →Chyme leaving the stomach is very acidic. In the duodenum it is made moreRead the answer and worked solution →Failure of the valve between food pipe and stomach can causeRead the answer and worked solution →How many pairs of main salivary glands does a person have?Read the answer and worked solution →How many compartments does a cow's stomach have?Read the answer and worked solution →Which chamber of a cow's stomach works like our single stomach?Read the answer and worked solution →What lets a cow get nutrients from the cellulose in grass?Read the answer and worked solution →Partly digested food that a cow brings back to chew again is calledRead the answer and worked solution →Which plant-eating animal is not a ruminant, having one simple stomach?Read the answer and worked solution →Rabbits eat their own soft cecotropes. Why?Read the answer and worked solution →Which of these plants catches prey with a snap trap?Read the answer and worked solution →Which trait is not needed for a plant to count as carnivorous?Read the answer and worked solution →Chitinases in a carnivorous plant's digestive fluid partly destroy an insect'sRead the answer and worked solution →Chlorophyll is held inside which cell parts, abundant in leaf cells?Read the answer and worked solution →Which pair are both chemoheterotrophs?Read the answer and worked solution →A lion eats a deer that eats grass. Which of these is the autotroph?Read the answer and worked solution →During digestion, fats are finally broken into glycerol andRead the answer and worked solution →Digestion of which nutrient gives amino acids?Read the answer and worked solution →
Worked practice questions
Under the hard enamel, a tooth is made of a bone-like material called
- keratin
- dentin
- cartilage
- collagen
Show answer and solution
Correct answer: B. dentin
Dentin is the bone-like material that forms the main body of a tooth.
Why is food chewed into small bits before it is swallowed?
- To make it warmer first
- To drain water from it
- To expose more area to enzymes
- To stop saliva from acting
Show answer and solution
Correct answer: C. To expose more area to enzymes
Smaller pieces have a much larger surface area, so digestive enzymes act faster.
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