Amino Acids: Structures and Properties

Adenine = A Guanine = G Thymine = T Cytosine = C

Ribose = RNA 2-deoxyribose = DNA D-ribose = RNA 2-deoxy-D-ribose = DNA

Nucleoside = Base + Sugar Nucleotide = Base + Sugar + Phosphate Beta-glycosidic linkage = Bond between base and sugar Furanose form = Five-membered ring form of nucleotides

<p>Cytidine = Cytosine + Sugar Uridine = Uracil + Sugar Adenosine = Adenine + Sugar Guanosine = Guanine + Sugar</p> Signup and view all the answers

<p>A, G, C, T = DNA A, G, C, U = RNA Adenine, Guanine, Thymine, Cytosine = DNA Adenine, Guanine, Cytosine, Uracil = RNA</p> Signup and view all the answers

<p>Lysosomes serve as digestion compartments for cellular materials that have exceeded their lifetime or are otherwise no longer useful by autophagy.</p> Signup and view all the answers

<p>Metamorphosis</p> Signup and view all the answers

<p>The lysosome membrane ruptures and enzymes are liberated.</p> Signup and view all the answers

<p>Lysosomes are absent in bacteria and mature mammalian erythrocytes.</p> Signup and view all the answers

<p>Lysosomes are $0.2$ to $0.5\mu m$ in size.</p> Signup and view all the answers

<p>Lysosomes are round vacuolar structures bounded by a single unit membrane.</p> Signup and view all the answers

<p>Since the size and shape of lysosomes vary from cell to cell and time to time (they are polymorphic), their identification becomes difficult.</p> Signup and view all the answers

<p>Leucocytes, especially granulocytes, are a particularly rich source of lysosomes.</p> Signup and view all the answers

<p>Lysosomes destroy cells or foreign matter that the cell has engulfed by phagocytosis.</p> Signup and view all the answers

<p>The unit membrane of Golgi vesicles fuses during cell plate formation and becomes part of the plasma membrane of daughter cells.</p> Signup and view all the answers