Question

annel presse ich label in the graph represents saturation of the came according to the orph as the number of glucose molecules increase the rate of dit increases indefinitely decreases increases until a plateau isreich can either increase or decrease cremains the same The figure below shows the process of receptor-mediated endocytosis. Which of the lowing statements regarding this process is a brane by facilita Juve hydrop soncu a. Receptor-mediated endocytosis requires receptor proteins located on the cell's surface b. Coated pits are lined on their cytoplasmic surface by clathrin c. Receptor-mediated endocytosis is important in cellular uptake of cholesterol d. Coated vesicles eventually become part of the endoplasmic reticulum c. Coated vesicles contain previously extracellular material

Answer 1

48) option a, glycolysis

Glycolysis is the initial step in catabolism of glucose .

49) option B, mitochondria

50) option c, oxygen

51) option e, ATP synthase

This process is oxidative phosphorylation, occurs in mitochondria. In this process reducing equivalents produced during metabolism ( NADH, FADH2) are oxidized and released energy which later used to synthesize ATP. It contains 5 complex, these are

I. NADH COQ reductase

II. Succinate dehydrogenase complex

III.Cytochrome reductase

IV.Cytochrome oxidase

V. ATP synthase

ATP synthase complex involve in synthesis of ATP. Complex IV leads to reduction of oxygen in to water.

Question 52) isotonic -- figure B

Question 53)flaccid -- figure c

Question 54) plasmolysis -- figure A

Question 55) turgid -- figure B

Question 56) hypertonic -- figure A

Question 57) hypotonic -- figure C

When cell put in a solution, which has same osmolarity to the cell . Entry of water molecules and exit of molecules is equal. Cells in this condition remain flaccid.

When cell put in solution which has high solute concentration than cell. This solution is known as hypertonic solution. In this solution water removes from cell and enter in to out side lead to plasmolysis of cell.

When cell put in solution which has less osmolarity than cell. In this condition water molecules enter in to cell and this solution known as hypotonic solution. Due to enter of water molecules cells become turgid.

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