CAMPION SCHOOL, MUMBAI
1ST TERM EXAMINATION
Std. 8 Date: 13/10/2023 Sub: Biology Time: 2 Hours Marks: 80
PRESENT A NEAT AND LEGIBLE PAPER
There are two sections. Section A is compulsory.
Attempt any four questions from Section B.
The intended marks for questions or parts of questions are given in brackets [ ].
SECTION A
(Attempt all questions from this Section.)
Question 1 [15]
Choose the correct answers to the questions from the given options. (Do not copy the question,
write the correct answers only.)
1. Which part of the plant is responsible for the upward movement of water and minerals?
a. Phloem b. Roots c. Stem d. Leaves
2. Which of the following is not a function of the lymphatic system
a. Absorption of fat from the small intestine
b. Reabsorption of tissue fluid
c. Defence against harmful agent
d. Regulation of body temperature
3. The endocrine system works in coordination with ________ system
a. Circulatory system b. Nervous system
c. Respiratory system d. Digestive system
4. A unit where there is an interaction between the living organisms and their surrounding
abiotic environment and there is exchange of material between the two is called an
a. environment b. ecosystem c. both a and b d. none
5. Deficiency of ___________ macronutrient causes slow growth and uniform yellowing
leaves
a. Nitrogen b. Potassium c. Oxygen d. Calcium
6. Blood group B positive is composed of
a. B antigen and A antibody b. B antibody and A antigen
c. B antigen and D antibody d. B antibody D antigen
7. Which of the following is a group of micronutrients
a. N,P,K b. B,K,S c. Mg,K,Cr d. B,Zn,Mo
8. Thyroxine regulates the rate of
a. Metabolism b. growth c. both a and b d. blood pressure
9. The structure in male that stores sperm
a. Sperm duct b. Prostate c. Testes d. Epididymis
10. _________ secrete digestive enzymes to decompose organic matter
a. Decomposers b. saprophytes c. autotroph d. both a and b
11. The rate of transpiration will _________ if the atmospheric pressure is low
a. Increase b. Decrease c. Stay unchanged d. Can’t be determined
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12. The ____________ forms after fertilisation
a. Embryo b. Morula c. Blastocyst d. Zygote
13. _________ hormone regulates the blood pressure
a. Oxytocin b. Thyroxine c. Adrenaline d. Insulin
14. Transport of food materials in higher plants occurs through ______
a. Flowers b. Companion cells c. Tracheids d. Sieve elements
15. The location in the female reproductive system where fertilisation occurs
a. Uterus b. Vagina c. Fallopian tube d. cervix
Question 2
1. Name the following: [5]
a. Specialisation of Immature cells into diverse cell types with specific function is
termed as _____________
b. The valve present between right atrium and right ventricle
c. The 3rd trophic level in a food chain is always occupied by _______
d. The deficiency of this nutrient cause browning of the leaf tip
e. The Hormone secreted by the pancreatic cell that increases the blood glucose level
2. State true or false and re-correct the underlined word: [5]
a. Xylem parenchyma performs the function of storage.
b. Cowper's gland contributes to the Alkaline secretion to semen
c. Omnivores feed on the flesh of dead animals
d. Dubb Sound is produced on the closure of the tricuspid and bicuspid valve
e. Hormones are secreted directly into the lymphatic vessel by the exocrine glands
3. Choose the odd one from the following terms and name the category to which others
belong: [5]
a. Phloem, upwards and downwards, sucrose and starch, upwards
b. glucose, glycogen, insulin, estrogen
c. Zygote, implantation, gestation, menstruation
d. spleen, tonsil, lymph node, salivary gland
e. Herbivorous, first trophic level, plants, solar energy
4. Label the diagram: [5]
1. Label parts 1 to 6 [3]
2. Name 2 accessory glands that assist in the movement of the sex gamete [2]
Contd..3
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5. Match the items given in Column I with the most appropriate ones in Column II and rewrite
the correct matching pairs : [5]
Column I Column Il
1. Mangroves a. Transpirational pull
2. coronary vessels b. Oversecretion of thyroxine
3. Increased metabolic rate c. carry blood to the heart muscles
4. vena cava d. Creek
5. Evaporation e. carry deoxygenated blood to the
heart
f. carry oxygenated blood in the heart
SECTION B
(Attempt any four questions from this Section.)
Question 3
a. Define: Parturition [1]
b. Differentiate between: Diffusion and Active transport [2]
c. Give reason: [2]
When we donate blood, we can save 4 different peoples lives
d. Explain the interactions among the factors of an ecosystem [2]
e. Answer the following questions based on the diagram: [3]
a. Which gland does the diagram represent
b. Name parts A and B
c. Mention any 2 diseases related to this gland
Question 4
1. Define: Food pyramid [1]
2. Differentiate between: ACTH and TSH [2]
3. Give reason: [2]
The testes are located outside the body in the scrotum sacs
4. Answer the following questions: [2]
Explain the relationship between Osmosis and Active Transport
Contd..4
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5. Answer the following questions based on the diagram: [3]
The diagram given alongside represents the human heart in one phase of its activity.
a. Name the phase.
b. What type of blood flows through the parts marked 1 and 2 respectively?
c. Which valves are closed in this phase?
Question 5
1. Define: Systemic circulation [1]
2. Differentiate between: [2]
Food chain and Food web
3. Give reason: [2]
Teenager are more prone to pimples and acne during adolescence
4. Answer the following questions: [2]
In the table given below, fill in the blanks by naming endocrine glands, the hormones they
secrete, and the function they perform, in a normal person.
Sr. No Name of the gland Hormone Functions
produced
1. Thyroid _____A___ ____B______
2. ______C_______ Insulin ______D_____
5. Answer the following questions based on the diagram: [3]
a. Identify the figure
b. Label parts a,b and c
c. State the function of the above shown diagram
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Question 6
1.Define: Semen [1]
2. Differentiate between: Artery and vein based on location and lumen [2]
3. Give reason: [2]
In the absence of any opening, how do vegetables such as brinjals or lady's fingers which are dry
and shrivelled, appear fresh again, when inserted in water.
4. Answer the following questions: [2]
Explain the relationship between absorption and transpiration
5. Answer the following questions based on the diagram: [3]
Identity the blood group Reference
Antibody A & B are added to the This blood drop indicates no clotting
above A & B blood drop respectively
Rh antibody is added to the D blood
drop
This blood drop indicates clotting
has taken place
a. Identify the blood group on the slide and mention the antigen and antibody present
in the blood group
b. Which blood type can be received by this blood group?
Question 7
1. Define: puberty [1]
2. Differentiate between: [2]
Adrenal Cortex and Adrenal Medulla based on hormone secretion
3. Give reason: [2]
Intake of fried and fatty food is not recommended for heart of adults above 40 years of
age group
4. Answer the following questions:
In xylem, tracheids and xylem vessels are placed end to end like tubes. How does this
help plants [2]
Contd..6
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5. Answer the following questions based on the diagram: [3]
a. Which ecosystem does this food web represent
b. what would happen in the following circumstances:
i) Absence of Bivalves
ii) over abundance of Aquatic plants
Question 8
1. Define: Detritivores [1]
2. Differentiate between: [2]
Root pressure and transpirational pull
3. Give reason [2]
Implantation cannot take place if fertilisation does not occur in the oviduct.
4. Answer the following Question: [2]
Mention any 4 psychological changes that take place in the life of a teenager during
adolescence
5. Diagram based question [3]
a) Label parts A to C
b) Name the hormone secreted by this gland.
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