Monday, July 30, 2012

CBSE Class 9 - Science - CH6 - Tissues (Worksheet)

Tissues
(Worksheet)
Cardiac Muscle
credits: 
Ijsbrand Kramer , University of Bordeaux
 
Fill in the blanks


1. ___________  is the process by which unspecialised structures become modified and specialised for performing specific functions.

2. Differentiation results in ________ (division/ summation/integration) of labour.

3. The study of the structure of tissues and organs is known as ______ .

4. Based on ability to divide, plant tissues may be classified as ________ and _____ tissues.



5. Meristematic cells possess the power of cell ______.

6. Permanent tissues are those which have lost the capacity to _____.

7. (Parenchyma/ Collenchyma/ Sclerenchyma)  ________ is a widely distributed, simple plant tissue.

8. (Parenchyma/ Collenchyma/ Sclerenchyma)  ________ is a strong and flexible mechanical tissue.

9. ____ and ______ are the conducting tissues or vascular tissues, also called complex tissues.

10.  The cell walls of _______ (Parenchyma/ Collenchyma/ Sclerenchyma) tissue are made up of cellulose hemicellulose and pectin

11. ____________ is the parenchyma with large number of chloroplasts.

12. (Xylem/Phloem) _______  is popularly known as wood.

13.  Xylem is composed of _______, ______, ________ and _______.

14. Tracheids are ____ (living/dead) cells _____ (with/without) protoplasts.

15. Protective tissues include ______ and _____.

16. Epithelial cells have _____ (little/large) intercellular substances.

17. (Connective/Muscular/Epithelial) _______ tissue serves to ‘connect’ or ‘bind’ the cells of other tissues in the body and gives them rigidity and support.

18. (Tendon/Ligament/Cartilage) ______ is made up of white fibres and connects muscles to bones.

19. Bone is surrounded by a connective tissue known as ________.

20. Striated muscles are ____ (voluntary/involuntary) while smooth muscles are _______(voluntary/involuntary).


Answers:

1. Differentiation
2. division of labour.
3. histology
4. meristematic tissue and permanent tissue
5. division or multiplication.
6. divide     
7. Parenchyma
8. Collenchyma
9. Xylem and phloem
10. Parenchyma
11. Chlorenchyma
12. Xylem
13.  tracheids, vessels, xylem parenchyma and xylem fibres.
14. dead, without
15. epidermis and cork
16. little
17. Connective
18. Tendon
19. periosteum
20. voluntary, involuntary

2 comments: