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Unformatted text preview: other’s reproductive organs return to a normal state more rapidly.
• While it continues, breastfeeding reduces the likelihood of another pregnancy. As an infant becomes physically more capable, it
develops the gross and fine motor skills to perform
increasingly more advanced tasks. The infant begins
to manipulate objects, talk, move with purpose,
and play (with the objective of play being to further
develop cognitive skills). 7. (a) Colostrum is very high in maternal antibodies
and has very little sugar and virtually no fat. Milk
formed later has a higher fat content.
(b) It is essential that the baby’s system be provided
with a good supply of antibodies in preparation for
its early days outside the uterus. The composition
of colostrum also assists in the adjustment of the
infant gut to taking in food. 8. The breast feeding mother should feed more
frequently (on demand as the infant becomes
hungrier) and this will induce greater milk production. 1. Syndactyly arises when the rate of apoptosis in
the developing limb has been too low to remove
the tissue between the digits before the close of
the developmental sequence (hence the lack of
differentiation between the two toes, which remain
partly joined). 2. Any one of the reasons from the following explanation:
Apoptosis is a carefully regulated process, which
occurs in response to particular signalling factors.
Necrosis, in contrast, is the result of traumatic
damage. Apoptosis results in membrane-bound cell
fragments whereas necrosis results in lysing and
spillage of cell contents. Apoptosis results in cell
shrinkage and contraction of the chromatin, which
does not occur in necrosis. 3. Roles of apoptosis, (a) and (b) any two of the
following in any order:
– Resorption of the larval tail during amphibian
– Sloughing of the endometrium during
– The formation of the proper connections
(synapses) between neurons in the brain (this
requires that surplus cells be eliminated by
– Controlled removal of virus-infe...
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This document was uploaded on 01/28/2014.
- Winter '13