Identify the type of tissue in the following: skin, the bark of the tree, bone, lining of kidney tubule and vascular bundle.
Define a complex tissue.
Difference between organ and organ system?
A group of cells is called a ____.
Describe the protostele in pteridophytes.
Are xylem vessel cells dead or alive?
What is a group of similar cells that perform a particular function called?
Can you consider a cluster of eggs as a tissue? Why?
What is the utility of tissues in multicellular organisms?
Name the plant tissue having dead cells.
Vessel are found in
All angiosperms and some gymnosperm
Most of angiosperms and few gymnosperms
All angiosprms, all gymnosperms and some pteridophyta
Which region of the root is responsible for the growth of the root in length?
Region of elongation
Region of meristematic activity
Region of maturation
On the basis of location, classify meristematic tissues.
Lenticels are developed by the activity of
What is the secondary plant body?
If the xylem vessels of plant are plugged
The leaves will turn yellow.
No food will be made
The plant will wilt (shrivel).
The plant will continue to grow.
Fill in the blanks: All life begins with a single _________.
None of these
Differentiate between plant tissues and animal tissues.
Why do different cells have different shapes?
- Cells choose random shape for themselves.
Cells get modified according to the function they perform.
- Cells attain different shapes in response to stress.
- Different cell shapes are a part of the evolution in the organism.
Which of the following is not a feature of connective tissue?
It shows contractile proteins i.e. actin and myosin.
It may be in fluid or solid state.
It has cells and matrix
It connects various parts of the body.
Give an example of cells containing two nuclei (Binucleate).[ 1 MARK ]
- Amoeba, WBC and RBC
- Blood, phloem and muscle
- Liver, lungs and kidney
- Xylem, heart and platelets
The cells of this tissue are loosely spaced and embedded in an intercellular matrix. This tissue which gives shape to the organs and holds them in place is called as the __________.
- muscle tissue
- connective tissue
Bicollateral vascular bundles are found in family
Plant length is increased by