neet pyqs

Differences between DNA and RNA

by
Differences between DNA and RNA

What are the differences between DNA and RNA? Following are the differences between DNA and RNA -: Criteria DNA (Deoxyribonucleic Acid) RNA (Ribonucleic Acid) Full Form Deoxyribonucleic Acid Ribonucleic Acid Sugar Deoxyribose Ribose Structure Double-stranded (helix) Single-stranded Nitrogenous Bases Adenine, Thymine, Cytosine, Guanine Adenine, Uracil, Cytosine, Guanine Location Nucleus (mainly), Mitochondria Cytoplasm, Ribosome, Nucleus Function … Read more

Endocrine System

by
Endocrine System: Pituitary Gland diagram showing the two lobes of Pituitary gland

Endocrine System consists of ductless glands that control, communicate, coordinate and integrate various functions of all the body organs by secretions of chemical messenger called hormones.

Nervous System

by
Diagrammatic structure of Neuron

The system that controls and coordinates all the activities of various body parts in response to external and internal stimuli by the conduction of nerve impulses is called nervous system.

Hepatic portal System

by
Hepatic Portal System diagram

All the portal veins that carry their contents into liver collectively constitute the Hepatic Portal System.

Human Excretory System

by
L.S. of Kidney of Man

The process of removal of chemical waste (mainly nitrogenous) from the body is known as excretion and the organ system involved is called Excretory System.

Human Circulatory System

by
Human Circulatory System- The Heart

All the parts of the body that help in the transportation of various materials in the body, collectively constitute the Circulatory System.