Biology Questions

All the carbon atoms in glucose ultimately incorporated during cellular respiration into carbon dioxide molecules.

A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function.

Hence, Cells with similar markers stick together and function as tissues.

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments or organelles. In eukaryotes, the organelles of the endomembrane system include the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane, among others.

Nucleus serves as the control center for cell metabolism and reproduction.

Cretinism is a disease caused by hypothyroidism(less thyroxine formation).The symptoms of the disease are retardation  of mental, physical and sexual developments. Potbellt, protruding tongue, dry skin etc are also indicative of this disease.

Antisnake venom: In the Hoffkine Institute at Bombay snake venom in mild dose is injected into horses and the horses are induced to produce anti-venom bodies. These are extracted and used in cases of snake bites.

The small intestine is the main area of the GI tract for absorption.

The small intestine has three separate sections. Theyare :

1. The duodenum

2. Jejunum and

3. Ileum.

Hence, the majority of nutrient absorption occurs in the duodenum and jejunum of small intestine.