General Biology Quiz

Adrenal medulla produces adrenaline hormone which is called as the fight or flight hormone.

It is produced by the leydig cells of the testis.

He discovered sex linked inhertance in Drosophila melanogaster.

It is the main component of thyroxine hormone.

Ectoderm in the frog forms lens and retina of the eye along with other sense receptors.

It secretes calcitonin which senses calcium levels in the body.

 These are variously coloured in structure.

It is also called as the urea cycle which occurs in liver.

These are the organelles containing unit membrane.

Worker bees are the sterile females or imperfect females.

Cumulus oophorus is found in ovaries.These are the cluster of cells that surround the oocyte.

As java man could stand upright so it was termed as homo erectus.

Plasma proteins include fibrinogen, albumin and globulins which together contributes to colloid osmotic pressure.

It posseses the myogenic heart i.e capable of generating cardiac contraction independent of nervous control.

Enzymes are capable of lowering the activation energy thereby bringing the reactants closer together into its active site allowing the chemical bonds to weaken and thereby leading to the formation of new bonds and thus a new product.