Download App

STD 11 - 19. Chemical coordination and integration — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 19. Chemical coordination and integration1 Mark
MCQ
What is hormone
  • A
    Glandular secretion
  • B
    Enzyme
  • ✓
    Chemical messenger
  • D
    Organic complex substance
✓

Answer

Correct option: C.
Chemical messenger
c
(c)Hormone is a chemical messenger produced by endocrine glands and secreted directly into the blood stream to exert a specific effect on a distant part of the body.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from STD 11 - 19. Chemical coordination and integration→STD 11 - 19. Chemical coordination and integration — all question types→BIOLOGY STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Persons with $'AB'$ blood group are called as "Universal recipients". This is due to :
→
Enzymes, vitamins and hormones are common in:
→
Match column $I$ (cell type) with column $II$ (size) and choose the correct option.
Column-$I$ Column-$II$
(Cell type) (Size)
$A$. Viruses $I$. $1-2\; mm$
$B$. $PPLO$ $II$. $10-20\; mm$
$C$. Eukaryotic cell $III$. About $0.1\; mm$
$D$. Bacterium $IV$. $0.02-0.2\; mm$
→
In mitosis the movement of chromosomes requires
→
In the chloroplast, the stroma lamellae lack the
→
Select the wrong statement.
→
What is correct for ribosome?
→
Chordae tendinae are found in:
→
The capsule of Funaria is
→
Match List $I$ with List $II$ :Choose the correct answer from the options given below :
List $I$ List $I$
$A$ Exophthalmic goiter $I$ Excess secretion of cortisol, moon face  hypergylcemia.
$B$ Acromegaly  $II$ Hypo-secretion of thyroid hormone and stunted growth.
$C$ Cushing's syndrome $III$ Hyper secretion of thyroid hormone  protruding eye balls.
$D$ Cretinism $IV$ Excessive secretion of growth hormone.
→