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प्रश्न
Write down the explanation.
Explain why human dentition is considered as thecodont, diphydont and heterodont.
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उत्तर
- Human dentition is described as thecodont, diphyodont and heterodont.
- It is called thecodont type because each tooth is fixed in a separate socket present in the jaw bones by gomphosis type of joint.
- It is called diphyodont type because we get only two sets of teeth, milk teeth and permanent teeth.
- It is called heterodont type because humans have four different type of teeth like incisors, canines, premolars and molars.
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संबंधित प्रश्न
Write names of different parts of human digestive system and explain functions of any three parts.
Where are proteins first digested in the alimentary canal?
If the saliva is lacking in salivary amylase, then which of the following processes taking place in the buccal cavity will be affected?
Draw a diagram of the human alimentary canal and label - gall bladder, pancreas, liver, and small intestine on it.
Write the function of the following in the human alimentary canal:
Villi
Fill in the blanks.
The ______ and ______ are used for crushing and grinding the food.
Name the following
The organ where protein digestion-begins
State whether the following statement is True or False.
The ducts from the salivary glands open into the duodenum.
Write true or false for the below statement. Rewrite the false statements correctly.
The pancreas secretes bile juice
Write true or false for the below statement. Rewrite the false statements correctly.
The wave-like motion of stomach muscles to push the food is called peristalsis.
Find the odd one out. Give reasons for your choice.
Differentiate between
Digestion and Absorption
Write short answers
Write the names of three enzymes which are found in pancreatic juice.
State whether the following statements are True or false: Enteropeptidase activates pepsinogen into pepsin.
State whether the following statements are True or false: Na+ is absorbed in intestine by sodium pump.
The question has four options. Choose the correct answer:
Uvula can close the opening of
The question has four options. Choose the correct answer:
Monophyodont teeth occur in
The process of digestion starts from the ______.
______ is the common passage of air and food.
Which sphincter guards the opening of the hepato-pancreatic duct?
Identify the INCORRECT statement.
Liver produces for ______ the digestion of fat.
Match the following:
| 1. | Pancreatic juice | a. | Breaking starch |
| 2. | Salivary enzymes | b. | Digestive enzymes |
| 3. | Salivary gland | c. | Alimentary canal |
| 4. | Digestive tract | d. | Parotid |
Mention the 3 important digestive glands in the process of digestion?
In which part of the alimentary canal food is finally digested?
Read carefully the terms given below. Which of the following set is the correct combination of organs that do not carry out any digestive functions?
Name the parts of the alimentary canal where water gets absorbed from undigested food.
Mark the following statement as True or False. If false, write the correct statement.
All heterotrophs have a similar basic process of nutrition.
Fill in the blanks using the words listed below.
| water, front, intestinal, salts, pseudopodia, back, vacuole |
- The digestion of all food components is completed by the ______ juice.
- Large intestine absorbs ______ and some ______ from the undigested food.
- Tongue is attached at the ______ to the floor of the mouth cavity and is free at the ______.
- Amoeba pushes out ______ around the food and traps it in a food ______.
