Category: Biology Questions

What is Racemose Inflorescence? Describe briefly the various types of Racemose Inflorescence?

Racemose Inflorescence: In this type of inflorescence, the main axis does not end in a flower, but it grows continuously and develops flowers on its lateral sides in acropetal succession (i.e the lower or outer flowers are older than the upper or inner ones). The various forms of racemose inflorescence may be described under three

“Fertilization is Physico-Chemical process” Explain.

Fertilization is Physico-Chemical process: The penetration of sperm into the ovum, during the process of fertilization, involves a series of physio-chemical events. As the spermatozoa pass through the male genital passages, they undergo a process of maturation. During the process of maturation, spermatozoa acquire some motility only after passing through the epididymis. The secretions of

Write the names of the respiratory organs present in human being. Explain them briefly.

Respiratory organs present in human being: Nasal Cavity: Nasal Cavity is a hollow structure partitioned into two nasal chambers by the nasal septum. It is composed of cartilage, bone, connective tissue and muscles. There are pairs of openings situated at the anterior and posterior ends of the nasal chambers. The anterior nostrils lead to the

Skeletal System

What is Skeletal System? The hard parts of an animal body present inside or outside the body collectively form the skeletal system or Skeleton. Types of Skeleton: Skeleton is of two types- Exoskeleton and Endoskeleton. Exoskeleton: It is protective and supportive framework present outside the body. An exoskeleton is made up of hard structures or

Adrenal Cortex- Important Hormones And Deficiency Disorders

Hormones Secreted by the Adrenal Cortex are the following- Mineralocorticoids: These are the steroid hormones secreted by the outermost cellular layer (zona glomerulosa) of the adrenal cortex. The fundamental mineral corticosteroid is aldosterone. Its secretion occurs when there is a fall in plasma sodium concentration or rise in plasma potassium. They control electrolyte and water