EVA AITS (NEET [BOTANY] -8)
- (d) The hydrolysis of Nucleic acid produces Phosphate group, pentose sugar (deoxy ribose or ribose) and
heterocyclic amines.
- (a) Heat can be used to disrupt hydrogen bonds and non-polar hydrophobic interactions. The proteins in
eggs denature and coagulate during cooking.
42.(a)
43.(b) In saltatory conduction, the action potential essentially ‘jumps’ from one node to another as it travels
down the axon, whereas in fully non-myelinated axons, it travels smoothly from start to finish all the way
down the axon.
- (d) Chemosynthetic autotrophic bacteria oxidise various inorganic substances such as nitrates, nitrites and
ammonia and use the released energy for their ATP production.
- (b) All the statements are regarding the bone tissue.
- (b) When two or more autonomous genes are
present on same or different chromosomes, they
combine to form a new expression and they are
called intergeneric cross.
- (c) Drosera leaves are not reproductive in nature
but some species of Drosera can be propagated
by leaf cuttings.
- (c) Reproductive structures of previous living
beings are not present in a primary succession
since primary succession occurs in an area where
no life existed previously.
- (c) Two strands of DNA are anti-parallel each
other. Both the strands run parallel but in opposite
directions. One chain has polarity 5’g3’ whereas
other has 3’g5’. Both strands are complimentary
to each other, it means that both strands have
complimentary base pairs.
- (b) 6. (b)
- (a) A-Streptokinase, B-Removing oil stains and
C-Trichoderma polysporum.
- (a) Photophosphorylation takes place during
daytime as the word ‘photo’ refers to light.
- (a) 10. (d)
- (a)
- (b) Abcisic acid promotes abscission of leaves,
fruits and fruits, it induces abscission layer in
the petiole and pedicle results in abscission.
Ethylene is associated with triple response
and it reduces stem elongation, increased stem
thickening and horizontal growth habit. Auxin
induces differential growth in plant organs under
the influence of stimuli termed tropic response.
Cytokinine induces morphogenesis.
- (b) Cyanophycean members contain Chlorophyll
a & b, carotenoids and xanthophylls as major
pigment and contains True starch and sugar as
reserve food material.
- (a) The position of the gynoecium with respect
to the petals, sepals, and stamens on the floral
axis also characterises the flower. In hypogynous
flowers, the perianth and stamens are attached to
the receptacle below the gynoecium; the ovary is
superior to these organs, and the remaining floral
organs arise from below the point of origin of the
carpel.
- (d) Chromosomes cluster at opposite spindle
poles and their identity is lost as discrete
elements, nuclear envelope assembles around
the chromosome clusters and nucleolus, golgi
complex and endoplasmic reticulum reforms in
the telophase stage.
- (c) 17. (d)
- (d)
- (b) Protein synthesis in an animal cell occurs
in cytoplasm where most chemical reactions
takes place in a cell membrane that controls the
portion of substances inside and out of the cell, in
mitochondria - where greater energy is liberated
during respiration membrane.
