|Description: it is a mixed biology test|
|Number of Questions: 15|
|Created by: Ashok Pandey|
|Tags: botany zoology Endocrine Glands (Hypothalamus, Pineal, Thyroid, and Parathyroid Glands) Fertilisation, Pregnancy and Development Endocrine Glands (Adrenal Gland, Pancreas, and Gonads) Photosynthesis Basic Biology The Cell Nervous System Excretory System in Humans The Male and Female Reproductive System Endocrine System|
Which gland produces fight or flight hormone?
Adrenal medulla produces adrenaline hormone which is called as the fight or flight hormone.
What does leydig cells produce?
It is produced by the leydig cells of the testis.
Who discovered sex linked inheritance?
He discovered sex linked inhertance in Drosophila melanogaster.
Which element is the main component of thyroxine hormone?
It is the main component of thyroxine hormone.
Lens and retina of the eye in a frog develops from which layer of embryo?
Ectoderm in the frog forms lens and retina of the eye along with other sense receptors.
Which gland secretes calcitonin hormones?
It secretes calcitonin which senses calcium levels in the body.
The plastids which are resposible for giving yellow and orange colours to flowers or fruits are:
These are variously coloured in structure.
Urea is formed by which cycle?
It is also called as the urea cycle which occurs in liver.
Which of the following is the unit membrane structure?
These are the organelles containing unit membrane.
Workers of honey bee society are
Worker bees are the sterile females or imperfect females.
In which organ is cumulus oophorus found?
Cumulus oophorus is found in ovaries.These are the cluster of cells that surround the oocyte.
Which of the following has the scientific name Homo erectus?
As java man could stand upright so it was termed as homo erectus.
Colloid osmotic pressure of blood is due to
Plasma proteins include fibrinogen, albumin and globulins which together contributes to colloid osmotic pressure.
Which animal possesses the myogenic heart?
It posseses the myogenic heart i.e capable of generating cardiac contraction independent of nervous control.
How does enzyme enhance the rate of chemical reaction?
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.