Incorrect match among the following
(A) RER - Cells actively involved in protein synthesis
(B) SER - Lipid synthesis
(C) RER - Connected to outer nuclear membrane
(D) Peroxisome – Included in endo membrane system

Read the statement carefully and choose the correct option. A. Primary cell wall of plant cells is incapable of growth and diminishes gradually as the cell matures. B. RER is abundantly found in the cells which are actively involved in proteins synthesis and secretion. C. SER is a major site for lipid synthesis. D. A number of proteins synthesized by RER are modified inside the Golgi apparatus.

Assertion:- Ribosomes are involved in protein synthesis. Reason:- They are membrane bound cell organelles.

How many of the given statements are incorrect ? I. Connectivity of plasmodesmata is maintained by ER membrane called dictyosome . II.Totallly buried proteins in membrane are integral protein while partially buried proteins are peripheral proteins. III. The primary cell wall is capable of growth. IV. The peroxisome is not included in the endomembrane system.

Consider the following statement (a) Endomembrane system includes mitochondria , chloroplast and peroxisomes (b) Smooth endoplasmic reticulum is major site for synthesis of lipid (c) Rough endoplamic reticulum is actually involved in protein synthesis (d) Mitchondrial matrix possesses single cirular DNA , a few RNAs and 80 S ribosomes Of the above statements

Consider the following statements A. In prokaryotic cells a special membranous structure formed by the extension of the plasma membrane into the cell is known as polysome B. The smooth endoplasmic reticulum is the major site for synthesis of glycoproteins C. RuBisCo is the most abundant protein in the whole of biospshere D. Mitochondria, chloroplasts and peroxisomes are not considered as part of endomembrane system Of the above statements

Most antibiotics target bacterial parasites interfering with various factors of growth or metabolism such as 1. synthesis of cell wall 2. bacterial protein synthesis 3. synthesis of nuclear membrane 4. mitochondrial function Select the correct answer using the code given below.

Roles of some mineral elements in plants are given below. (a) Helps in anion cation balance in cells. (b) Involves in protein synthesis. (c) Helps in the formation of mitotic spindle (d) Involves in liberation of oxygen from water during photosynthesis. Which of the given role(s) is/are related to chlorine?

Go through the following statements (i) In human beings, the membrane of the erythrocyte has approximately 52 percent lipids and 40 percent proteins (ii) Lipids are arranged within the membrane with the hydrophobic tails towards the outer side and the polar head towards the inner side. (iii) As the polar molecules cannot pass through the non- polar lipid bilayer, they require a carrier protein of the membrane to facilitate their transport across the membrane (iv) The endomembrane system includes endoplasmic reticulum, Golgi complex, lysosomes and peroxisomes Find out the wrong peroxisomes :

Identify the correct statement w.r.t. the given cell A. Concerned with lipid and steroidal hormone synthesis B. Outer non- living rigid structure which gives shape to the cell and protects from mechanical damage and infaction . C. Both lie perpendicular to each other and each has an organisation like the cart wheel . D. Responsible for trapping light energy for the synthesis of sugar. E. Present in cells actively involved in protein synthesis and secretion. F. Spherical structures rich in hydrolytic enzymes.