ACME ACADEMY

WEEKLY EVALUATION TEST

Subject: Science
Time Limit: 20 Mins
Max Marks: 20 Marks
Student Name:
Roll Number:
Class / Sec:
Date:

GENERAL INSTRUCTIONS:

  1. All questions are compulsory. Carefully read all instructions before starting.
  2. The question paper contains 20 questions.
  3. There is no negative marking for incorrect answers.
  4. Use of mobile phones, smartwatches, or calculators is strictly prohibited during the exam.
1. The microscopic gap between two adjacent neurons over which nerve impulses pass is called a:
[1 Mark]
(A) Dendrite
(B) Axon
(C) Synapse
(D) Myelin sheath
2. Which part of the human brain is responsible for maintaining posture and balance of the body?
[1 Mark]
(A) Cerebrum
(B) Cerebellum
(C) Medulla oblongata
(D) Hypothalamus
3. What is the correct pathway taken by nerve impulses in a reflex arc?
[1 Mark]
(A) Receptor -> Motor neuron -> Spinal cord -> Sensory neuron -> Muscle
(B) Receptor -> Sensory neuron -> Spinal cord -> Motor neuron -> Muscle
(C) Muscle -> Motor neuron -> Brain -> Sensory neuron -> Receptor
(D) Sensory neuron -> Receptor -> Spinal cord -> Motor neuron -> Muscle
4. The bending of a plant shoot towards light is known as:
[1 Mark]
(A) Geotropism
(B) Hydrotropism
(C) Phototropism
(D) Chemotropism
5. Which plant hormone promotes cell division and is highly concentrated in areas of rapid growth like fruits and seeds?
[1 Mark]
(A) Auxin
(B) Gibberellin
(C) Cytokinin
(D) Abscisic acid
6. Which gland is often referred to as the 'master gland' because it regulates the secretions of many other endocrine glands?
[1 Mark]
(A) Thyroid gland
(B) Adrenal gland
(C) Pancreas
(D) Pituitary gland
7. Iodine is necessary for the synthesis of which hormone?
[1 Mark]
(A) Adrenaline
(B) Thyroxine
(C) Insulin
(D) Testosterone
8. A patient is advised by the doctor to take less sugar in their diet. What disease are they most likely suffering from?
[1 Mark]
(A) Goitre
(B) Diabetes
(C) Anaemia
(D) Scurvy
9. Which hormone prepares our body to deal with emergency or 'fight or flight' situations?
[1 Mark]
(A) Insulin
(B) Thyroxine
(C) Adrenaline
(D) Estrogen
10. Which of the following constitutes the Central Nervous System (CNS) in humans?
[1 Mark]
(A) Brain and spinal cord
(B) Cranial nerves and spinal nerves
(C) Spinal cord and motor neurons
(D) Sensory neurons and receptors
11. In a neuron, where is the nerve impulse first received?
[1 Mark]
(A) Axon terminal
(B) Cell body
(C) Nucleus
(D) Dendrite
12. What is the role of Abscisic acid in plants?
[1 Mark]
(A) Promotes stem elongation
(B) Inhibits growth and causes wilting of leaves
(C) Promotes cell division
(D) Ripens fruits
13. The main thinking part of the brain responsible for voluntary actions, memory, and reasoning is the:
[1 Mark]
(A) Forebrain (Cerebrum)
(B) Midbrain
(C) Hindbrain (Medulla)
(D) Spinal cord
14. The growth of pollen tubes towards the ovule is an example of:
[1 Mark]
(A) Phototropism
(B) Geotropism
(C) Chemotropism
(D) Thigmotropism
15. Involuntary actions such as blood pressure, salivation, and vomiting are controlled by the:
[1 Mark]
(A) Cerebrum
(B) Cerebellum
(C) Medulla in the hindbrain
(D) Spinal cord
16. Which hormone is predominantly responsible for the changes associated with puberty in human males?
[1 Mark]
(A) Estrogen
(B) Progesterone
(C) Testosterone
(D) Growth hormone
17. The response of the 'Touch-me-not' (Mimosa pudica) plant to being touched is an example of:
[1 Mark]
(A) A directional tropic movement
(B) A growth-dependent movement
(C) A rapid, growth-independent nastic movement
(D) Geotropism
18. Which protective structures enclose the brain and the spinal cord, respectively?
[1 Mark]
(A) Cranium and Vertebral column
(B) Rib cage and Cranium
(C) Vertebral column and Sternum
(D) Meninges and Rib cage
19. Dwarfism is a condition resulting from:
[1 Mark]
(A) Excess secretion of thyroxine
(B) Deficiency of growth hormone
(C) Excess secretion of adrenaline
(D) Deficiency of insulin
20. How do neurons communicate electrical signals over long distances within the body?
[1 Mark]
(A) Through continuous physical connections without gaps
(B) By converting the electrical signal into a chemical signal at the synapse
(C) By releasing hormones directly into the bloodstream
(D) By physically contracting like muscle fibres
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