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Lyceum English Medium School Half Yearly Examination (2020-21) Phase-2 Class VIII Subject-Biology

1) The document is the question paper for the Half Yearly Examination of Class VIII Biology subject for Lyceum English Medium School. It contains 8 sections (A-H) with multiple choice, fill in the blank, short answer and diagram based questions testing various concepts in Biology. 2) The questions test knowledge of topics like reproduction, plant and animal anatomy, embryology, genetics and experimental techniques. Definitions, processes, differences and biological reasoning are examined. 3) Diagrams of sperm structure and the experimental set up demonstrating capillary action are also included to be labelled and questions answered about the concepts demonstrated.

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217 views2 pages

Lyceum English Medium School Half Yearly Examination (2020-21) Phase-2 Class VIII Subject-Biology

1) The document is the question paper for the Half Yearly Examination of Class VIII Biology subject for Lyceum English Medium School. It contains 8 sections (A-H) with multiple choice, fill in the blank, short answer and diagram based questions testing various concepts in Biology. 2) The questions test knowledge of topics like reproduction, plant and animal anatomy, embryology, genetics and experimental techniques. Definitions, processes, differences and biological reasoning are examined. 3) Diagrams of sperm structure and the experimental set up demonstrating capillary action are also included to be labelled and questions answered about the concepts demonstrated.

Uploaded by

SWAPNA IS FUNNY
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Lyceum English Medium School

Half Yearly Examination (2020-21)


Phase-2
Class VIII
Subject- Biology
Time- 1 hour Full marks- 50
General Instruction:

1. Read the question paper thoroughly.


2. Write the answers mentioning the proper question number.
3. Answer should be written in neat and clean manner.
4. Leave at least two lines gap in between the two answers and draw end line after every answer.

Group A
A. Name the following: 5
1. The full term development of foetus inside the uterus.
2. Reproductive part of the plant.
3. The muscular tube starting from the end of the uterus to the outside.
4. Egg laying animals.
5. Other name of fruit wall.
B. Fill in the blanks with suitable words: 5
1. The ability of the living organism to produce more of its own kind is called -----.
2. The cells of the explant divide and form an undifferentiated mass of cells
called-----.
3. --------is innermost whorl and the female reproductive part of the flower.
4. Calyx and corolla are called the ------- whorls of the flower.
5. ------- plants are those in which male and female flowers are borne on separate plants.
C. Differentiate between: 10
1. Spermatogenesis and oogenesis
2. Autogamy and allogamy
3. Implantation and gestation
4. Morula and blastocyst
Group B
D. Define the following terms: 5
1. Emasculation
2. Ovulation
3. Dichogamy
4. Hydrophilly
5. Perianth
E. Answer the following questions: 10
1. What is placenta? What function does it perform?
2. Write two characteristics of entomophilous flower?
3. Write two disadvantages of cross pollination.
4. State the function of
a. Epididymis
b. Uterus
5. Which are the essential whorls of the flower? Why are they so called?
F. Give biological reasons for: 5
1. The fully developed human embryo is called foetus.
2. Testes are present inside scrotal sac.
3. Water hyacinth is called the “terror of Bengal”.
4. Bulb of onion is a condensed shoot.
5. There is no wastage of pollen grains in self-pollination.
G. Draw neat labelled diagram of “Structure of sperm”. 5
H. Study the following diagram and answer the following questions: 5

1. Name the phenomenon that is demonstrated in the above set up.


2. Define the phenomenon.
3. What are the droplets seen on the inner side?
4. How will you test them?
5. From where did the droplets come?

---------x---------

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