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With reference to the cell, consider the following statements: 1. Each cell acquires its structure and ability to function because of the organization of its membrane and organelles in specific ways.  2. Cells are enclosed by a plasma membrane composed of lipids and proteins. 3. Most plant cells have large membranous organelles called plastids, which are of two types – chromoplasts and leucoplasts. Which of the above statement is/are correct?

With reference to the cell, consider the following statements: 1. Each cell acquires its structure and ability to function because of the organization of its membrane and organelles in specific ways.  2. Cells are enclosed by a plasma membrane composed of lipids and proteins. 3. Most plant cells have large membranous organelles called plastids, which are of two types – chromoplasts and leucoplasts. Which of the above statement is/are correct? Correct Answer 1 and 2 only

The correct answer is 1, and 2 only.

Key Points

Cell

  • Each cell acquires its structure and ability to function because of the organization of its membrane and organelles in specific ways. Hence, statement 1 is correct.
  • The cell thus has a basic structural organization. This helps the cells to perform functions like respiration, obtaining nutrition, and clearing waste material, or forming new proteins.
  • Thus, the cell is the fundamental structural unit of living organisms. It is also the basic functional unit of life.
  • Cells are enclosed by a plasma membrane composed of lipids and proteins. Hence, statement 2 is correct.
  • The presence of the cell wall enables the cells of plants, fungi and bacteria to exist in hypotonic media without bursting.
  • The ER functions both as a passageway for intracellular transport and as a manufacturing surface.
  • The Golgi apparatus consists of stacks of membrane-bound vesicles that function in the storage, modification and packaging of substances manufactured in the cell.
  • Most plant cells have large membranous organelles called plastids, which are of three major types – chloroplasts, chromoplasts and leucoplasts. Hence, statement 3 is incorrect.
    • Plastids that contain chlorophyll are called chloroplasts and they perform photosynthesis in green plants and algae.
    • Chromoplasts are the plastids which contain pigments other than chlorophyll and are usually present in the colourful parts of plants like flowers.
    • Leucoplasts are the plastids that lack pigments and mainly help in the storage of oils, starch and protein granules.
  • Most mature plant cells have a large central vacuole that helps to maintain the turgidity of the cell and stores important substances including wastes.
  • Prokaryotic cells have no membrane-bound organelles, their chromosomes are composed of only nucleic acid, and they have only very small ribosomes as organelles.
  • A white blood cell (WBC) in human blood is an example of a single cell that can change its shape.
  • The bacterial cell also has a cell wall.
  • In egg white material is albumin which solidifies on boiling. The yellow part is the yolk. It is part of a single cell.
  • Valonia ventricosa, a species of algae with a diameter that ranges typically from 1 to 4 centimetres is among the largest unicellular species.

Related Questions

Which of the following statements are correct regarding common differences between plant and animal cells?
1. Plant cells have cellulose cell wall, while animal cells lack it.
2. Plant cells lack plasma membrane, while animal cells have it.
3. Mature plant cell have a large vacuole, while animal cells have numerous small vacuoles.
Which of the following statements are correct regarding the general difference between plant and animal cells? 1. Plant cells have cellulose cell walls while animal cells do not. 2. Plant cells do not have a plasma membrane, unlike animal cells which do. 3. Mature plant cell has one large vacuole whilst animal cell has many small vacuoles. Select the correct answer using the code given below:
Consider the following statements regarding Plastids: 1. They are present in all living organisms. 2. Leucoplasts are primarily organelles in which materials such as starch, oils and protein granules are stored. 3. They are self-replicating. 4. They are broadly classified into two types. Which of the statements given above are correct?
Consider the following statements regarding the Structure of cells: 1. Both Animal & Plant cells comprise amyloplast within the cell membrane. 2. Plant cells have plasmodesmata channels whilst animal cells do not. 3. Vacuoles in both plant cells & animal cells are always filled with solid substances. Which of the statement given above is/are not correct? 
Which of the following statement(s) is/are CORRECT for antigen activated effector T cells?
P. CD4+ cells make contact with macrophages and stimulate their microbicidal activity.
Q. CD4+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
R. CD8+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
S. CD8+ cells make contact with virus infected cells and kill them.
Which of the following statements are correct regarding the general difference between plant and animal cells? 1. Plant cells have cellulose cell walls whilst animal cells do not. 2. Plant cells do not have a plasma membrane, unlike animal cells that do. Select the correct answer using the code given below:
Which of the following statements are correct regarding the general difference between cell and nuclear membranes? 1. A cell membrane occurs in both Eukaryotes and Prokaryotes while a Nuclear membrane occurs only in Eukaryotes.  2. Both cell membrane and nuclear membrane persists throughout the lifetime of a cell. 3. The main feature of the nuclear membrane is the presence of two lipid bilayer structures while a cell membrane has single lipid bilayer structures. Select the correct answer using the code given below.
With reference to Plasma Membrane, considering the following statements: 1. flexibility of the cell membrane also enables the cell to engulf in food and other material from its external environment. 2. The cell membrane consists of a lipid bilayer that is impermeable. Which of the statements given above is/are correct?
Consider the given cell organelles.
1. Mitochondria
2. Plastids
3. Ribosome
Which of the cell organelle(s) given above is/are common in both plant and animal cells?
The following are the conditions for selecting list of a suitable candidates to be called for interview after the written test for the recruitment is conducted/ organized for management-level persons of a multi-national company. For providing accounting services and sales the candidates must (a) be holding a graduation in basic science with 65% or above or B. E degree with 55% and above marks (b) have passed the written test with 70% or above marks (c) the age must be in the group 25 to 30 years as on 1/4/18 (d) have experience in an accounting firms for three years and diploma in accounting with 60% or above marks (e) be presently drawing CTC of 6 Lakhs per annum and above In case the applicant who satisfies all other terms above except 1) at (a) above, then be referred as Junior Accountant 2) at (d) & (e) above then be referred as Trainee-Accountant Satisfying all the above with experience of 5 years then be referred as senior-Accountant Satisfying all the above criteria (a-e) with CA/ ICWA / MBA (Finance) then be refereed as manager (Accounts) Read all the above information and answer the following question Shravani has passed H. SC with 72% of marks. She has done diploma in accountancy with 62% of marks. She was working with an organization in the field of accounting in the field of accounting from 4 years and was drawing CTC of 6.5 Lakhs presently. She is 28yrs as on July 2018. She may referred for the position of: