Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Cell : The Unit of Life

Question:

Match column I with column II.

Column I      Column II
(A) Golgi apparatus    (i) Synthesis of protein
(B) Lysosomes  (ii) Trap waste and excretory products
(C) Vacuoles        (iii)Formation of glycoproteins and glycolipids
(D) Ribosomes          (iv) Digesting biomolecules


                    
            


Choose the right match from the options given below :

Options:

(A)-(i), (B)-(ii), (C)-(iv), (D)-(iii).

(A)-(iii), (B)-(iv), (C)-(ii), (D)-(i).

(A)-(iv), (B)-(iii), (C)-(i), (D)-(ii).

(A)-(iii), (B)-(ii), (C)-(iv), (D)-(i).

Correct Answer:

(A)-(iii), (B)-(iv), (C)-(ii), (D)-(i).

Explanation:

The correct answer is Option (2) –(A)-(iii), (B)-(iv), (C)-(ii), (D)-(i).

Column I      Column II
(A) Golgi apparatus    (iii)Formation of glycoproteins and glycolipids
(B) Lysosomes  (iv) Digesting biomolecules
(C) Vacuoles        (ii) Trap waste and excretory products
(D) Ribosomes          (i) Synthesis of protein

The golgi apparatus principally performs the function of packaging materials, to be delivered either to the intra-cellular targets or secreted outside the cell. Materials to be packaged in the form of vesicles from the ER fuse with the cis face of the golgi apparatus and move towards the maturing face. This explains, why the golgi apparatus remains in close association with the endoplasmic reticulum. A number of proteins synthesised by ribosomes on the endoplasmic reticulum are modified in the cisternae of the golgi apparatus before they are released from its trans face. Golgi apparatus is the important site of formation of glycoproteins and glycolipids.

Lysosomes are membrane bound vesicular structures formed by the process of packaging in the golgi apparatus. The isolated lysosomal vesicles have been found to be very rich in almost all types of hydrolytic enzymes (hydrolases – lipases, proteases, carbohydrases) optimally active at the acidic pH. These enzymes are capable of digesting carbohydrates, proteins, lipids and nucleic acids.

Vacuoles is the membrane-bound space found in the cytoplasm. It contains water, sap, excretory product and other materials not useful for the cell. The vacuole is bound by a single membrane called tonoplast. In plant cells the vacuoles can occupy up to 90 per cent of the volume of the cell. In plants, the tonoplast facilitates the transport of a number of ions and other materials against concentration gradients into the vacuole, hence their concentration is significantly higher in the vacuole than in the cytoplasm.

Ribosomes are the granular structures first observed under the electron microscope as dense particles by George Palade (1953). They are composed of ribonucleic acid (RNA) and proteins and are not surrounded by any membrane.