Question 1 :
There are many types of amino acids on the basis of

Question 2 :
Match column-I with column-II and choose the correct option. <table><tr><td>Column-I(Chromosome)</td><td>Column-II (Position of Centromere)</td></tr> <tr><td>A. Metacentric</td><td>I. At the tip</td></tr> <tr><td>B. Submetacentric</td><td>II. Almost near the tip</td></tr> <tr><td>C. Acrocentric</td><td>III. At the middle</td></tr> <tr><td>D. Telocentric</td><td>IV. Slightly away from the middle</td></tr></table>

Question 3 :
<p>Read the following statements and identify the correct option given.</p><p>I. In prokaryotic cell, the nuclear membrane, chloroplast, mitochondria, </p><p> microtubules and different kinds of pili are absent.</p><p>II. In eukaryotic cell, the nuclear membrane, chloroplast, mitochondria and pili are present.</p><p>III. In prokaryotic cell, the ribosome is of 70 S type and in mitochondria of </p><p> eukaryotic animal cell, the ribosome is 80 S type </p>

Question 4 :
Microtubules, motor proteins, and actin filaments are all part of the

Question 6 :
Which one of the following events is incorrect for cell cycle?

Question 7 :
Match the biomoecules given in column I with their examples given in column II and choose the correct answer. <table><tr><td>Column I(Biomolecules)</td><td>Column II (Examples)</td></tr> <tr><td>A. Carbohydrates</td><td>I. Trypsin</td></tr> <tr><td>B. Protein</td><td>II. Cholesterol</td></tr> <tr><td>C. Nucleic acid</td><td>III. Insulin</td></tr> <tr><td>D. Lipid</td><td>IV. Adenylic acid</td></tr></table>

Question 8 :
The chitinous exoskeleton of arthropods is formed by the polymerization of

Question 10 :
Match the protein given in column I with its function given in column II and choose the right option. <table><tr><td>Column I(Proteins)</td><td>Column II (Functions)</td></tr> <tr><td>A. Collagen</td><td>I. Glucose transport</td></tr> <tr><td>B. Trypsin</td><td>II. Hormone</td></tr> <tr><td>C. Insulin</td><td>III. Intercellular ground substance</td></tr> <tr><td>D. GLUT-4</td><td>IV. Enzyme</td></tr></table>

Question 11 :
The main organelle involved in modification and routing of newly synthesized proteins to their destinations is

Question 12 :
Which one of the following precedes re-formation of the nuclear envelope during M phase of the cell cycle ?

Question 13 :
{tex} \mathrm {Assertion}{/tex} : G{tex}_1{/tex} phase is the interval between mitosis and initiation of DNA replication. <br>{tex} \mathrm {Reason}{/tex} : The cell is metabolically inactive during G{tex}_1{/tex} phase.

Question 14 :
<b>Assertion (A)</b>: G₁-phase is also called anaphase as during this phase, the cell stores ATP for cell division. <br><b>Reason (R)</b>: Cell produces structural and functional proteins. Cell's metabolic rate is high and is controlled by the enzymes.

Question 18 :
<p> <font face="Cambria Math, serif">Which of the following cell organelles stores hydrolytic enzymes?</font></p>

Question 19 :
<p> <font face="Cambria Math, serif">I. Chromosomes cluster at opposite spindle poles their identity is lost as discrete elements</font></p> <p> <font face="Cambria Math, serif">II. Nuclear envelope assembles around the chromosome clusters</font></p> <p> <font face="Cambria Math, serif">III. Nucleolus, Golgi complex and ER reform</font></p> <p><font face="Cambria Math, serif">Above features indicates which phase of mitosis</font></p>

Question 20 :
<p>The double helix model of Watson and Crick is known as</p>

Question 22 :
<p> <font face="Cambria Math, serif">Which of the following is not a function of vacuole in plant cell?</font></p>

Question 25 :
<p> <font face="Cambria Math, serif">Which of the following is the filler substance of the matrix of eukaryotic cell?</font></p>