Consider statements about ribosomes: 1. They are non-membranous organelles. 2. Prokaryotic ribosomes are 80S. 3. They are the site of protein synthesis. Which are correct? MCQ with Answer and Explanation

Explanation:
Insulin is a peptide hormone secreted by the beta cells of the Islets of Langerhans in the pancreas. Its primary function is to lower blood glucose levels (hypoglycemic effect) by promoting the cellular uptake of glucose, particularly in muscle and fat cells, and its conversion to glycogen (glycogenesis) in the liver. Glucagon has the opposite effect.

Explanation:
Cuscuta (dodder) is a total stem parasite that wraps around the host plant and absorbs nutrients through haustoria. It lacks chlorophyll and leaves. Mimosa is sensitive plant, Nepenthes is insectivorous, Aloe vera is a succulent. Parasitic plants derive some or all of their nutrition from other living plants. Cuscuta is economically important as a weed.

Explanation:
Growth Hormone (GH), also known as somatotropin, is secreted by the anterior pituitary gland. It stimulates growth, cell reproduction, and cell regeneration, particularly in bones and skeletal muscle. Overproduction in childhood leads to gigantism, while underproduction leads to pituitary dwarfism. TSH, ACTH, and FSH are other anterior pituitary hormones with different target organs.