(CCE 2012) Answer: Genetic material is enclosed inside the nucleus in eukaryotes while it lies coiled in the cytoplasm as nucleoid in prokaryotes. These organelles are responsible for a variety of cellular functions, such as obtaining nutrients, producing energy, and making proteins. Back of Chapter Questions . 1. Cell organelles and their functions is a topic of biology studied during higher education and a graduate degree in science. But few organelles are unique to the plant cell as well as the animal cell. (a) Cell Inclusions - Cell inclusions are non-living materials present in the cytoplasm. The cells are composed of many or one cells that perform their individual functions. In prokaryotic cells, the true nucleus is absent, moreover, membrane-bound organelles are present only in eukaryotic cells. (b) Cytosol - It is the soluble part of cytoplasm and is located between cell organelles. (c) Protoplasm - Nucleus and cytoplasm together are called protoplasm. There are various cell organelles, out if which, some are common in most types of cells like cell membranes, nucleus, and cytoplasm. Dr PS Verma Dr. VK Aggarwal Solution Class 9 Biology 2nd Chapter – “The Fundamental Unit of Life: Cell” in here. 1.Plant cells are bigger in size as compared to animal cells. Figure 02: Cell Inclusions Examples of Cell Inclusions include, Glycogen granules in liver muscle cells, Lipid droplets in fat cells (lipids in adipocytes and hepatocytes), Pigment granules of skin and hair cells (melanin in melanocytes), Water containing vacuoles, Crystals of various types of cells in human testis (Sertoli cells and Leydig cells), Name the cell organelle that detoxifies poisons and drugs in the liver of vertebrates. Short answer Type Questions (Carrying 2 marks each): Page No. The principal function of the nucleoplasm is to program as a suspension substance for the organelles inside the nucleus. 2.) Cell organelle is a specialized entity present inside a particular type of cell that performs a specific function. Glycogen. Support astrocytes (largest and most numerous neuroglial cells found in the brain and spinal cord) and neurolemmocytes (specialised glial cell that wraps around vertebrate axons providing extremely good electrical insulation) (Shcwann cells). Other major differences between prokaryotic and eukaryotic cells are that prokaryotic cells are exclusively unicellular, while the same does not apply to eukaryotic cells. Osmotic pressure occurs because of differences in the concentration of solutes on … Some of the cell organelles are present in both the plant and animal cell which help them to do the basic cellular activities. (d) Nucleoplasm - It is the liquid ground substance present in the nucleus. 3.) Cell inclusions are considered various nutrients or pigments that can be found within the cell, but do not have activity like other organelles. These cells are almost similar in all the organisms ranging from microbes to plants and animals.. A cell is a basic unit of life that carries out most of the physiological processes on its own. 118 (1) The difference between prokaryotic and eukaryotic cell are given below:- (i) Prokaryotic cell is generally small (1 to 10 mm) whereas eukaryotic cell is generally large (5 – … Question 30. In most prokaryotic cells, morphology is maintained by the cell wall in combination with cytoskeletal elements. Mention the difference between prokaryotes and eukaryotes in terms of nuclear region present in them. The cell wall is a structure found in most prokaryotes and some eukaryotes; it envelopes the cell membrane, protecting the cell from changes in osmotic pressure (Figure 2). All these substances and components present inside the cell membrane together are considered as nucleoplasm and hence it comprises of the nucleus, cell fluids, and the organelles. Solution: The differences between plant cells and animal cells are as follows: Plant Cells Animal Cells. Cells function differently in unicellular and multicellular organisms, but in every organism, each cell has specialized cell structures, or organelles, of which there are many. Make a comparison and write down ways in which plant cells are different from animal cells. Examples of cell inclusions are glycogen, lipids, and pigments such as melanin, lipofuscin, and hemosiderin. Intermediate filaments of glial cells, made of glial fibrillary acidic protein. The cell is the structural and fundamental unit of life. CBSE NCERT Solutions for Class 9 Science Chapter 5 .