Type 1 diabetes is an autoimmune disease that causes an increase in the amount of glucose in blood and urine. Which statement CORRECTLY describes the cause of this disease?
A)
the increase in the insulin producing ability of white blood cells
B)
the loss of the insulin producing ability of the nephrons of the kidney
the loss of the insulin producing ability of the beta cells of the pancreas
D)
the increase in the insulin producing ability of the epithelial cells of bile
duct

C) the loss of the insulin producing ability of the beta cells of the pancreas

Explanation:

Without diabetes, insulin produced in the pancreas on islets of Langerhans by beta cells to regulate blood sugar levels. Type 1 diabetes occurs when the pancreas produces little to no insulin.

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

explanation:

b is the correct answer