NCERT Solutions Class 11 Biology Chapter 7

NCERT Solutions for Class 11 Biology Chapter 7

Give a head start to your test preparation by accessing the NCERT Solutions, Class 11 Biology, Chapter 7, Structural Organisation in Animals from Extramarks. To provide a thorough study aid for all students, our subject specialists have solved the exercises in this chapter from the NCERT textbook. The NCERT Solutions for Class 11 Biology, Chapter 7, are available for free and considered an ideal study resource for last-minute revision. Students can actually use these solutions to prepare for different competitive examinations.

NCERT Solutions for Class 11 Biology Chapter 7 – Structural Organisation in Animals

The first term’s NCERT Solutions for Class 11 Biology Chapter 7 Structural Organisation in Animals strive to provide students with complete answers to all of the problems in the NCERT Textbook. These NCERT Solutions for Class 11 have been updated to reflect the most recent CBSE term-by-term Syllabus 2022-23. Students must use numerous resources to broaden their horizons in order to do exceptionally well, which will be incredibly beneficial not only for the term – I assessments but also for their upcoming competitive exams.

These class 11 Biology chapter 7 NCERT solutions have been written by a team of specialists in an easy-to-understand and basic manner, ensuring a pleasant learning experience.

Also, these NCERT Solutions have been simplified for students by subject-matter experts at Extramarks. The experts who prepared these solutions have a broad understanding of Biology and have discussed all the concepts in an easy-to-understand manner. Students become familiar with these solutions in a short span of time because the information has been collected from the standard study resource, the NCERT textbook. Students can then begin their term – I test preparations.

Study Important Questions for Class 11 Biology Chapter 7 Structural Organisation In Animals

Q1. What is the common name of Periplaneta Americana?

A1. American Cockroach is the common name of Periplaneta Americana. It can be 34-53 cm long in the adult phase.

Q2. How many pairs of spermatheca are present in earthworms?

A2. Earthworms have four pairs of spermatheca located between the sixth and ninth segments. These help in receiving and storing spermatozoa at the time of copulation.

Q3. Where are the ovaries positioned in a cockroach?

A3. The ovaries are positioned between the 12th and 13th abdominal segments in a cockroach. These are present in pairs.

Q4. How many segments are there in the abdomen of a cockroach?

A4. There are ten segments in the abdomen of a cockroach. The number remains the same in both sexes.

NCERT Solutions for Class 11 Biology Chapter 7 – Structural Organisation in Animals

The chapter discusses the structural organisation of animals in detail, including many facts and figures. The role of similar cells in a multicellular organism is covered in this chapter. Tissue is a collection of related cells that perform a specific function. Epithelial, Connective, Muscular, and Neural tissues are the four categories of animal tissues. The lining of several body parts is made up of epithelial tissue. Connective tissues, on the other hand, connect and support other tissues. All of these connective tissues are known to give animals’ bodies flexibility and suppleness.

Muscle tissue is made up of long cylindrical fibres that run parallel to one another. These fibres are made up of myofibrils, which are fibrils. A neuron is another name for neural tissue. The neuroglial cell is recognized for both protecting and supporting neurons. In multicellular organisms, all of these tissues are arranged to form numerous organ systems.

NCERT Solutions For Class 11 Biology Chapter 7 Structural Organisation In Animals: Weightage

Class 11 Chapter 7 has a weightage of 5% in NEET. It has a weightage of 12% in school examinations. In the tests, the three chapters included in the unit are given equal weightage.

Benefits of NCERT Solutions For Class 11 Biology Chapter 7 Structural Organisation In Animals

Let’s have a look at the advantages of the NCERT Solutions by Extramarks.

  • Students can use the NCERT Solutions for Class 11 Biology Chapter 7 to learn about all the topics addressed in the chapter.
  • Our subject-matter experts have also solved the problems in accordance with CBSE guidelines so that students can learn how to write proper answers for their exams.

FAQs (Frequently Asked Questions)

The cellular components of blood covered in Chapter 7 of NCERT Solutions for Class 11 Biology are –

  1. Red Blood Cells (RBC)
  2. White Blood Cells (WBC)
  3. Platelets

Students can use the solutions by Extramarks to have a better understanding of this idea. Experts create solutions for all textbook questions to assist students in quickly resolving their difficulties.

The past years’ question papers are available on Extramarks. Additionally, students can also access NCERT books, solution sets, mock tests, and sample papers on the website.

In earthworms, nephridia aids excretion and osmoregulation. In earthworms, there are three different forms of nephridia. The position of these can be used to classify them. The three types are:

  • Septal nephridia, which can be found on both sides of segment 15’s intersegmental septa.
  • Integumentary nephridia, which is generally attached to the body wall lining of segment 3.
  • Pharyngeal nephridia, which can be found in the fourth, fifth, and sixth segments.

Tissues are made up of a group of cell components that bunch together and perform the same function. Animal tissue is formed when animal cells come together or are grouped together. Features such as origin, function, and structure distinguish these tissues. Epithelial tissues, Muscular tissues, Connective tissues, and Nervous tissues are the four basic groups of tissues.

A simple epithelium consists of one layer of cells, whereas a compound epithelium consists of multiple layers of cells. In animals, the simple epithelium is involved in both secretion and absorption. The compound epithelium, on the other hand, is involved in the body’s protection process. The simple type can be found in the intestine as well as the lining of the stomach. Compound one, on the other hand, is found in the lining of the pharynx and buccal cavity.

Chondrocytes are the cells that are responsible for cartilage formation. Their shape is similar to that of a polygon. Chondrocytes are typically composed of collagen and proteoglycans. They can be found in any of the desired forms of AC in the articular cartilage of the intervertebral discs. These are only the cells found in the cartilage. The production and maintenance of the cartilage matrix is a function of chondrocytes.