TISSUES: CELLS IN
UNISON
(LESSON – 3)
Q.1. Name the
following:
1. Meristem
located at root and shoot apex.
2. Supporting cells
for neurons.
3. Two proteins of
muscle cells.
4. An avascular
tissue.
5. Animals which lack
presence of tissues and organ systems
6. Cells which do not
undergo replacement or repair in human body after birth.
7. A protective tissue
in plants which is dead.
8. Tissue which forms
endoskeleton of the body.
9. A living
conductive tissue in plants.
10. Meristems found at
the base of internodes.
Q.2. Fill in the
blanks:
1. ………..is the unit of
nervous tissue.
2. ………..carry messages
towards cell.
3. Connective tissue
with fluid matrix is …………….
4. Tissue that forms
inner lining of mouth is ………………
5. ……connects muscles
to bones.
6. ……………muscle control
movement of urinary bladder, uterus.
7…………..is the
gelatinous layer on which rests epithelial cells.
8. ……………..is an
aggregation of cells that are similar in structure, functions or both.
9…………..are the tissues
that stores fats.
10. Tissues that
secrete number of important substances like hormones and enzymes………………….
Q.3. Give reasons:
1. Skeletal muscle is
called as striated muscle.
2. Cardiac muscles are
called as involuntary muscles.
3. Sclerenchyma cells
are dead.
4. Muscles have the
property to contract.
5. What is the need
for cells and tissues specialisation?
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