BAF Shaheen College Dhaka
Practice Half-yearly Examination-2020
Class: IX (English Version) Subject: Biology
(Creative Part)
Time:2 hours 30 minutes Full marks : 50 [N.B- Read the stems carefully and answer the associated questions. Answer any five questions.]
1.
a. What is complex tissue? 1
b. Why is complex tissue called the vascular tissue? 2
c. Write the characteristics of “A” with diagram. 3
d. Distinguish between ‘A’ and ‘B’. 4
2. In Biology class teacher discussed about the rules of binomial nomenclature.Second day,teacher also discussed about the characters of diatom and mango tree belonging kingdoms.
a. What is the latest scientific name of Asian toad? 1
b. What do you mean by aim of classification? 2
c. Describe the mentioned notable rules in the stem. 3
d. Explain and analyze which kingdom is more advanced in between the discussed kingdoms in the stem. 4
3.
Fig : P Fig : Q
a. Write the scientific name of doel. 1
b. Which kingdom does amoeba belong to?Why? 2
c. Describe the positional characteristics of Fig:P according to Margulis classification. 3
d. Discuss the economic significance of figure-Q in human life. 4
4. “X” is an animal cell which has no centriole and ‘Y’ is one kind of tissue which can contract or expand.
a. What is endocrinology? 1
b. What are the functions of lysosome? 2
c. Draw a labelled diagram of the cell ‘X’. 3
d. Explain the importance of the tissue ‘Y’. 4
5.
Fig : X Fig : Y
a. What is the scientific name of our national fruit? 1
b. “Chemical composition of a cell wall is very much complex”-why? 2
c. Describe the characteristics of the tissue related to the Fig-X. 3
d. Explain the different types of cells related to the figure ‘Y’. 4
Simple Tissue
Collenchyma
A B
Skin Blood
Code: 138
6. A element of tissue B element of tissue
Vessel Sieve cell
a. What is histology? 1
b. Why is human being called heterotrophic? 2
c. Explain the structural characteristics of the ‘B’ tissue of the stem. 3
d. Analyze the roll of tissue A and B. 4
7.
a. What is interphase? 1
b. What do you mean by somatic cell? 2
c. Explain the process occurring in Type-A. 3
d. According to above two stems which is responsible for the qualitative characteristic features of organisms remaining unchanged?
Analyze it. 4
8. 6CO + 12H O---→ A + 6H O + 6O
a. What is respiration? 1
b. Which organelle of the cell is called power house and why? 2
c. Explain the light phase of the process mentioned in the stem. 3
d. Animals are completely dependent on “A” of the stem-analyze it. 4
Type : A
