Class 11 Biology - Chapter Structural Organisation in Animals NCERT Solutions | Answer the following: (i) What is the fu
Welcome to the NCERT Solutions for Class 11th Biology - Chapter Structural Organisation in Animals. This page offers a step-by-step solution to the specific question from Excercise 1 , Question 2: answer the following i what is the function of....
Question 2
Answer the following: (i) What is the function of nephridia? (ii) How many types of nephridia are found in earthworm based on their location?
Answer
(i) Nephridia are segmentally arranged excretory organs present in earthworms.
(ii) On the basis of their location, three types of nephridia are found in earthworms. They are:
(a) Septal nephridia: These are present on both sides of the inter-segmental septa behind the 15th segment and they open into the intestine.
(b) Integumentary nephridia: These lie attached to the body wall from the third segment to the last segment, which opens on the body surface.
(c) Pharyngeal nephridia: These are present as three paired tufts in fourth, fifth, and sixth segments.
More Questions From Class 11 Biology - Chapter Structural Organisation in Animals
- Q:- Describe various types of epithelial tissues with the help of labelled diagrams.
- Q:- What are the cellular components of blood?
- Q:- What are the following and where do you find them in animal body
(a) Chondriocytes
(b) Axons
(c) Ciliated epithelium - Q:- Draw a neat diagram of digestive system of frog.
- Q:- Answer in one word or one line. (i) Give the common name of Periplaneta americana. (ii) How many spermathecae are found in earthworm? (iii) What is the position of ovaries in the cockroach? (iv) How many segments are present in the abdomen of cockroach? (v) Where do you find malphigian tubules?
- Q:- Distinguish between the following
(a) Prostomium and peristomium
(b) Septal nephridium and pharyngeal nephridium - Q:- Mention briefly about the circulatory system of earthworm
- Q:- Distinguish between
(a) Simple epithelium and compound epithelium.
(b) Cardiac muscle and striated muscle
(c) Dense regular and dense irregular connective tissues
(d) Adipose and blood tissue
(e) Simple gland and compound gland - Q:- Match the terms in column I with those in column II:
Column I Column II
(a) Compound epithelium (i) Alimentry canal
(b) Compound eye (ii) Cockroach
(c) Septal nephridia (iii) Skin
(d) Open circulatory system (iv) Mosaic vision
(e) Typhlosole (v) Earthworm
(f) Osteocytes (vi) Phallomere
(g) Genitalia (vii) Bone - Q:- Draw a labelled diagram of alimentary canal of a cockroach.
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1 Comment(s) on this Question
Ayushi
2020-08-05 22:40:09
Its really help me to overcome on my doubts and I easily done my homework. Finally I say this is really amazing ððð.
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