Manure is a natural substance obtained from animal and plant waste, like cow dung, human waste, and plant residue. It supplies essential elements to the soil and makes it more fertile. But, it is not much helpful when a particular nutrient is required in the soil for a particular crop. Which one of the following reasons given below is the possible reason for this?

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

Which image shows labeled organelles that are present only in plant cells?

Mouse liver cells were homogenized and the homogenate subjected to equilibrium density-gradient centrifugation with sucrose gradients. fractions obtained from these gradients were assayed for marker molecules (i.e., molecules that are limited to specific organelles). the results of these assays are shown in the figure. the marker molecules have the following functions: cytochrome oxidase is an enzyme involved in the process by which atp is formed in the complete aerobic degradation of glucose or fatty acids; ribosomal rna forms part of the protein-synthesizing ribosomes; catalase catalyzes decomposition of hydrogen peroxide; acid phosphatase hydrolysis monophosphoric esters at acid ph; cytidylyltransferase is involved in phospholipid biosynthesis; and amino acid permease aids in transport of amino acids across membranes. a) name the marker molecule and give the number of the fraction that is most enriched for each of the following cell components: lysosomes; peroxisomes; mitochondria; plasma membrane; rough endoplasmic reticulum; smooth endoplasmic reticulum.