Given the dental formula of human beings | Class 11 Biology Chapter Digestion and Absorption, Digestion and Absorption NCERT Solutions

Welcome to the NCERT Solutions for Class 11 Biology - Chapter Digestion and Absorption. This page offers a step-by-step solution to the specific question from Exercise 1, Question 6: . With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 6: Given the dental formula of human beings

Answer:

The dental formula expresses the arrangement of teeth in each half of the upper jaw and the lower jaw. The entire formula is multiplied by two to express the total number of teeth.

The dental formula for milk teeth in humans is:

Each half of the upper jaw and the lower jaw has 2 incisors, 1 canine, and 2 molars. Premolars are absent in milk teeth.

The dental formula for permanent teeth in humans is:

Each half of the upper jaw and the lower jaw has 2 incisors, 1 canine, 2 premolars, and 3 molars. An adult human has 32 permanent teeth.

Other Questions of Chapter Digestion and Absorption

Q: Explain the term thecodont and diphyodont.

Q: Match column I with column II
Column I Column II
(a) Bilirubin and biliverdin (i)Parotid
(b) Hydrolysis of starch (ii) Bile
(c) Digestion of fat (iii)Lipases
(d)Salivary gland (iv) Amylases

Bile juice contains no digestive enzymes, yet it is important for digestion. Why?

How does butter in your food gets digested and absorbed in the body?

What are the functions of liver?

Explain the process of digestion in the buccal cavity with a note on the arrangement of teeth.

Discuss the main steps in the digestion of proteins as the food passes through different parts of the alimentary canal.

Does gall bladder make bile?

What are the various enzymatic types of glandular secretions in our gut helping digestion of food? What is the nature of end products obtained after complete digestion of food?

How are polysaccharides and disaccharides digested?

Popular questions of class 11 Biology

Q: Describe briefly the four major groups of Protozoa.

Q: Why are living organisms classified?

Q: State two economically important uses of: (a) Heterotrophic bacteria (b) Archaebacteria

Q: What is the difference between direct and indirect development?

Define a taxon. Give some examples of taxa at different hierarchical levels.

Q: Describe the important properties of enzymes.

What are the steps involved in formation of a root nodule?

Q: Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.

Q: How is a key helpful in the identification and classification of an organism?

Q: What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.

Recently Viewed Questions of Class 11 Biology

Name the pathological condition when uncontrolled cell division occurs.

Aquatic animals generally are ammonotelic in nature where as terrestual forms are not. Comment.

Name the cells/tissues in human body which
a. exhibit ameboid movement
b. exhibit ciliary movement

Q: How is the study of plant anatomy useful to us?

How do you distinguish between a skeletal muscle and a cardiac muscle?

Why earthworm is called the friend of farmer?

Q: Draw the labelled diagram of the following:
(i) Gram seed
(ii) V.S. of maize seed

Which of the following is correct:
(a) Cells of all living organisms have a nucleus.
(b) Both animal and plant cells have a well defined cell wall.
(c) In prokaryotes, there are no membrane bound organelles.
(d) Cells are formed de novo from abiotic materials.

Mitosis results in producing two cells which are similar to each other. What would be the consequence if each of the following irregularities
occur during mitosis?
a. Nuclear membrane fails to disintegrate
b. Duplication of DNA does not occur
c. Centromeres do not divide
d. Cytokinesis does not occur.

Q: Discuss with your teacher about
(i) haploid insects and lower plants where cell-division occurs, and
(ii) some haploid cells in higher plants where cell-division does not occur.

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

Read the question carefully and focus on the core concept being asked.
Reference examples and data from the chapter when answering questions about Digestion and Absorption.
Review previous year question papers to get an idea of how such questions may be framed in exams.
Practice answering questions within the time limit to improve your speed and accuracy.
Discuss your answers with your teachers or peers to get feedback and improve your understanding.

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Comments

Bhumika
Dec 06, 2019

Amazing to know deeply about answers and fast work for me thanks a lots

Nishi
May 20, 2019

thanks

Manoj Srivastava
Oct 22, 2018

I canât understand how it Comes 20 teeth and 32 teeth respectively..How it hasnât been Calculated Plz someone explain me

Yuvraj
Jun 29, 2018

It helps me a lot....... thnx... ð