Cell - The Unit of Life · Biology · NEET
MCQ (Single Correct Answer)
| List - I | List - II | ||
|---|---|---|---|
| (A) | Fleming | (I) | Disc shaped sacs or cisternae near cell nucleus |
| (B) | Robert Brown | (II) | Chromatin |
| (C) | George Palade | (III) | Ribosomes |
| (D) | Camillo Golgi | (IV) | Nucleus |
Choose the correct answer from the options given below:
Mesosome in a cell is a :
Match List-I with List-II:
| List - I | List - II | ||
|---|---|---|---|
| (A) | Histones | (I) | Loosely packed chromatin |
| (B) | Nucleosome | (II) | Densely packed chromatin |
| (C) | Euchromatin | (III) | Positively charged basic proteins |
| (D) | Heterochromatin | (IV) | DNA wrapped around histone octamer |
Choose the correct answer from the options given below:
Which of the following statements is correct about the type of junction and their role in our body?
Match List-I with List-II.
| List - I | List - II | ||
|---|---|---|---|
| (A) | F$$_1$$ Particles | (I) | Chromosomes |
| (B) | Histones | (II) | Cillia |
| (C) | Axoneme | (III) | Golgi apparatus |
| (D) | Cisternae | (IV) | Mitochondria |
Choose the correct answer from the options given below:
Given below are two statements :
Statement I : Concentrically arranged cisternae of Golgi complex are arranged near the nucleus with distinct convex cis or maturing and concave trans or forming face.
Statement II : A number of proteins are modified in the cisternae of Golgi complex before they are released from cis face.
In the light of the above statements, choose the correct answer from the option given below.
Match List I with List II
| List - I | List - II | ||
|---|---|---|---|
| A. | Nucleolus | I. | Site of formation of glycolipid |
| B. | Centriole | II. | Organization like the cartwheel |
| C. | Leucoplasts | III. | Site of active ribosomal RNA synthesis |
| D. | Golgi apparatus | IV. | For storing nutrients |
Choose the correct answer from the options given below:
The DNA present in chloroplast is:
Match List I with List II :
| List - I | List - II | ||
|---|---|---|---|
| A. | Axoneme | I. | Centriole |
| B. | Cartwheel pattern | II. | Cilia and flagella |
| C. | Crista | III. | Chromosome |
| D. | Satellite | IV. | Mitochondria |
Choose the correct answer from the options given below :
Given below are two statements:
Statement I: Mitochondria and chloroplasts both double membranes bound organelles.
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared chloroplast.
In the light of the above statements, choose the mis appropriate answer from the options given below:
Given below are two statements :
Statement I :- In bacteria, the mesosomes are formed by the extensions of plasma membrane.
Statement II :- The mesosomes, in bacteria, help in DNA replication and cell wall formation.
In the light of the above statements, choose the most appropriate answer from the options given below:
Which of the following statements are correct with respect of Golgi apparatus ?
(A) It is the important site of formation of glycoprotein and glycolipids.
(B) It produces cellular energy in the form of ATP.
(C) It modifies the protein synthesized by ribosomes on ER.
(D) It facilitates the transport of ions.
(E) It provides mechanical support.
Choose the most appropriate answer from the options given below :
In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as
How many different proteins does the ribosome consist of?
Which of the following are NOT considered as the part of endomembrane system?
A. Mitochondria
B. Endoplasmic reticulum
C. Chloroplasts
D. Golgi complex
E. Peroxisomes
Choose the most appropriate answer from the options given below:
Which of the following functions is carried out by cytoskeleton in a cell?
The Phenomenon by which the undividing parenchyma cells start to divide mitotically during plant tissue culture is called as
Match List-I with List-II
| List - I | List - II | ||
|---|---|---|---|
| (a) | Porins | (i) | Pink coloured nodules |
| (b) | leg haemoglobin | (ii) | Lumen of thylakoid |
| (c) | H$$^+$$ accumulation | (iii) | Amphibolic pathway |
| (d) | Respiration | (iv) | Huge pores in outer membrane of mitochondria |
Choose the correct answer from the options given below.
Which type of substance would face difficulty to pass through the cell membrane?
If the pH in lysosomes is increased to alkaline, what will be the outcome?
Which of the following statements with respect to Endoplasmic Reticulum is incorrect?
| List-I | List-II | ||
|---|---|---|---|
| (a) | Cristae | (i) | Primary constriction in chromosome |
| (b) | Thylakoids | (ii) | Disc-shaped sacs in Golgi apparatus |
| (c) | Centromere | (iii) | Infoldings in mitochondria |
| (d) | Cisternae | (iv) | Flattened membranous sacs in stroma of plastids |
Choose the correct answer from the options given below.
(a) semi-autonomous organelles
(b) formed by division of pre existing organelles and they contain DNA but lack protein synthesising machinery
Which one of the following options is correct?
| Column I | Column II |
|---|---|
| (a) Thylakoids | (i) Disc-shaped sacs in Golgi apparatus |
| (b) Cristae | (ii) Condensed structure of DNA |
| (c) Cisternae | (iii) Flat membranous sacs in stroma |
| (d) Chromatin | (iv) Infoldings in mitochondria |
| (a) Centriole | (i) Infoldings in mitochondria |
|---|---|
| (b) Chlorophyll | (ii) Thylakoids |
| (c) Cristae | (iii) Nucleic acid |
| (d) Ribozymes | (iv) Basal body cilia or flagella |
Components :(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii) Nucleus
The correct components are :