Question

q113 the names of different cell - organelle structures are given below. mitochondria, cell wall, ribosome, centriole, microbodies, nucleus, endoplasmic reticulum. how many of the above are present in both higher plant and animal cells? (a) 6 (b) 4 (c) 3 (d) 2 q114 select the correct match (a) ribosomes - non - membrane bound and made up of dna & proteins (b) golgi apparatus - important site for formation of glycolipids and glycoproteins (c) secondary wall - capable of extension (d) endomembrane system - organelles whose functions are not co - ordinated q115 cell wall of algae is rich in - (a) cellulose, hemicellulose, pectin and proteins (b) cellulose, hemicellulose, mannans and minerals like caco₃ (c) cellulose, lignin, pectin and caco₃ (d) cellulose, pectin, galactans and lignin q116 match the column i and column ii and choose the correct option column - i column - ii a thylakoid i infoldings of inner mitochondrial membrane b matrix ii flat membranous sacs in the stroma c cisternae iii inner compartment of mitochondria d cristae iv disc - shaped sac in golgi bodies (a) a - i, b - ii, c - iii, d - iv (b) a - iii, b - i, c - iv, d - ii (c) a - ii, b - iii, c - iv, d - i (d) a - iii, b - i, c - ii, d - iv q117 assertion: metacentric chromosome has middle centromere forming two equal arms of chromatid. reason: duration of cell cycle can vary from organism to organism and also from cell type to cell type. (a) both assertion and reason are true and the reason is a correct explanation of the assertion (b) both assertion and reason are true but reason is not a correct explanation of the assertion (c) assertion is true but the reason is false (d) both assertion and reason are false q118 assertion: the endomembrane system includes endoplasmic reticulum (er), golgi complex, lysosomes and vacuoles. reason: mitochondria, chloroplast and peroxisomes are not part of endomembrane system. (a) assertion & reason are true and the reason is a correct explanation of the assertion (b) assertion and reason are true but reason is not a correct explanation of the assertion (c) assertion is true but the reason is false (d) both assertion and reason are false q119 a centrioles are found only in animal cells ✓ b during cell divisions, chromosomes are best visible in anaphase stage ✗ c nucleus may contain haploid, diploid or polyploid genome

Explanation:

1. Q113: Mitochondria, Ribosomes, Golgi bodies and Endoplasmic Reticulum are present in both plant and animal cells. So the answer is related to cell - organelle knowledge in Biology.
2. Q114: Nucleus is membrane - bound and made up of DNA and proteins. Golgi apparatus is the site for formation of glycolipids and glycoproteins.
3. Q115: Cell wall of algae is rich in cellulose, hemicellulose, pectin and minerals like CaCO₃.
4. Q116: Thylakoid is a flat membrane sac in the stroma, Matrix is the inner compartment of mitochondria, Cisternae are disc - shaped sacs in Golgi bodies and Cristae are infoldings of inner mitochondrial membrane.
5. Q117: Metacentric chromosome has middle centromere but the reason about cell - cycle duration is not related to the centromere position.
6. Q118: Endomembrane system includes endoplasmic reticulum, Golgi complex, lysosomes and vacuoles and mitochondria, chloroplast and peroxisomes are not part of it.
7. Q119: Centrioles are found only in animal cells. Chromosomes are best visible in metaphase stage, not anaphase. Nucleus may contain haploid, diploid or polyploid genome.

Answer:

1. Q113: Information not enough to provide an answer from the given text.
2. Q114: (b) Golgi apparatus - Important site for formation of glycolipids and glycoproteins is correct among the given options about organelle functions.
3. Q115: (b) Cellulose, Hemicellulose, Pectins and Minerals like CaCO₃.
4. Q116: (c) A - ii, B - iii, C - iv, D - i.
5. Q117: (b) Both Assertion and Reason are True but Reason is not a correct explanation of the Assertion.
6. Q118: (a) Assertion & Reason are True and the Reason is a correct explanation of the Assertion.
7. Q119: A. True; B. False; C. True.