EVA AITS (NEET [ZOOLOGY] -9)
- (c) Healthy blood pressure in adults is a reading
below 120 systolic or 80 diastolic. Blood pressure
between 120/80 to 140/90 is normal.
- (d) 32. (a)
- (c) In post-synaptic cells, neurotransmitter
receptors receive signals that trigger an electrical
signal, by regulating the activity of ion channels.
- (a)Antidiuretic hormone (ADH) also called
vasopressin helps the body to conserve water
when body fluid volume (like blood) is low. Even
hormones like Thyroxine has been implicated in
the process of osmoregulation.
- (c) Syphilis is a STD transmitted by a bacterium.
- (c) Ornithine cycle: cyclic enzymatic process
consisting of consecutive transformations of the
amino acid ornithine and leading to the synthesis
of urea. The ornithine cycle is the most important
means of assimilation of ammonia (and thus for
its neutralisation) in many species of animals, as
well as in plants and microorganisms.
The reactions of the ornithine cycle have been most
thoroughly studied in mammals (H. Krebs and K.
Henseleit 1932), in which the reactions take place
primarily in the liver.
- (a)
- (c) Food particles are absorbed into the blood
stream via the small intestine. The undigested
substances are transferred to the large intestine
which essentially serves as a storage organ for the
excretory products. The descending, ascending and
transverse colons also facilitate the absorption of
left over vitamins, water and salt.
- (b) Proctadeum is a part of large intestine lined by
ectoderm in rabbits.
- (b)
- (a) Amino acids are the end product on complete
hydrolysis of proteins and peptides.
- (d) Malignant tumours : cancerous cells from such
tumour are carried by blood and lymph to other
parts of the body, where they form secondary
malignant growths. The spread of cancer cells to
distant parts is called metastasis.
- (b)Arbor vitae is a tree-like appearance in a vertical
section of the cerebellum, due to the arrangement
of the white and grey nerve tissues.
- (a)Heterotrophic bacteria derive their energy from
another organisms by feeding.
These heterotrophic bacterias have an important
influence on human affairs. They are useful in
making curd from milk, production of antibiotics,
fixing nitrogen in legume roots etc.
- (a) Adipocytes of brown adipose tissue consists
larger quantity of mitochondria and oxygen
for more energy production. It also consists
multiple lipid globules. Yellow adipose tissue has
adipocytes with single large lipid globule.
- (d) Zoological park is also called an animal park
or menagerie, is a facility in which animals are
confined within enclosures, displayed to the
public, and in which they may also breed.
- (d) Rust is caused by Puccinia, Smut is caused by
Ustilago. Puccinia, Smut and Mushrooms belong
to class Basidiomycetes. Hence all of them bears
basidiospores.
- (d) The amphids (Chemoreceptors) are cuticular
elevations on the ventero-lateral lips of Ascaris.
- (b) The aves have pneumatic bones which is an
adaptation towards aerial mode of life.
- (d) Conjugation is a type of sexual reproduction in
bacteria. During Conjugation two bacterial cells
of different strains, one acting as male (donor
cell) another as female (recipient cell) come.
- (d) Actinomyces are facultative anaerobe.
- (a)Obligate intracellular parasites are the parasites
that can reproduce only when within a living cell,
although it may survive outside cells.
- (d) Earthworm consists of closed circulatory
system with capillaries, blood vessels and heart.
Blood is composed of fluid plasma and colourless
corpuscles. Red pigment, haemoglobin is
dissolved in plasma. It gives red colour to the
blood and helps in transportation of oxygen for
respiration.
