Comprehensive collection of questions from General Science asked in recent state service examinations. Each question is verified with official answer keys and step-by-step bilingual solutions.
Which of the following converts solar energy into chemical energy most efficiently?
Which of the following is not a component of chlorophyll?
The presence of which of the following is not required for the process of photosynthesis?
Conversion of light energy into chemical energy occurs by:
Estrogen is primarily produced by-
Which extraembryonic fetal membrane protects the developing embryo from desiccation/drying out?
Malfunction/enlargement of the thyroid gland is primarily caused by deficiency of-
A primary female sex hormone is-
Which of the following hormones is a female hormone?
Estrogen is a-
Consider the following statements: Assertion (A): Bright light is undesirable during sleep. Reason (R): In bright light, melatonin production in the body increases. Select the correct answer using the code below:
Which hormone is called the 'Fight or Flight' hormone?
Which of the following hormones regulates blood calcium and phosphate levels in the human body?
At what stage of development does the human embryonic heart begin to beat?
Match List-I with List-II and select the correct answer using the code given below: List-I (Class) List-II (Example) A. Hormone 1. Lipase B. Enzyme 2. Testosterone C. Phospholipid 3. Lecithin D. Polymer 4. Polyethene Code:
Which endocrine hormone stimulates the thyroid gland to synthesize and secrete thyroxine?
Consider the following: 1. Thyroid gland 2. Pituitary gland 3. Adrenal gland Which of the above endocrine gland(s) is/are located in the neck?
Match List-I (Hormone/Pheromone) with List-II (Function/Association) and select the correct answer using the code given below: List-I (Substance) List-II (Association) A. Adrenaline 1. Anger, fear, danger B. Estrogen 2. Attracting mate via olfactory scent C. Insulin 3. Females D. Pheromone 4. Glucose Code:
In humans, the biological process of fertilization takes place in the-
Which type of gland in the human body is ductless?
Upon entering the female reproductive tract, human spermatozoa typically retain their fertilizing viability for-
Secretion of which hormone accelerates heart rate and produces emotional/physical arousal?
Which is the smallest endocrine gland in the human body?
With reference to the human body, consider the following statements: 1. Digestive enzymes entering the duodenum are secreted into blood. 2. Male testes produce progesterone in significant amounts. 3. Adrenal glands in females produce testosterone. 4. Stress stimulates the adrenal glands to secrete elevated amounts of cortisol. Which of the statements given above are correct?
Deficiency of iodine leads to-