#1
Which organelle is responsible for producing energy in a cell?
Mitochondria
ExplanationMitochondria generate energy through cellular respiration.
#2
What is the main function of the kidneys in the human body?
Filtering and excreting waste products
ExplanationKidneys filter and excrete waste products from the blood.
#3
Which hormone is responsible for the fight or flight response in stressful situations?
Adrenaline
ExplanationAdrenaline triggers the fight or flight response in stressful situations.
#4
What is the role of the thymus gland in the immune system?
Maturation of T cells
ExplanationThe thymus gland plays a role in the maturation of T cells in the immune system.
#5
Which hormone is responsible for regulating calcium levels in the blood?
Parathyroid hormone
ExplanationParathyroid hormone regulates calcium levels in the blood.
#6
What is the primary function of red blood cells in the bloodstream?
Transporting oxygen
ExplanationRed blood cells transport oxygen to tissues and organs.
#7
Which enzyme is responsible for breaking down carbohydrates in the digestive system?
Amylase
ExplanationAmylase breaks down carbohydrates into simpler sugars during digestion.
#8
Which molecule carries genetic information and serves as the instructions for building proteins?
DNA
ExplanationDNA carries genetic instructions for protein synthesis.
#9
What is the role of white blood cells in the immune system?
Fighting infections and diseases
ExplanationWhite blood cells defend against infections and diseases.
#10
What is the primary function of the liver in the digestive system?
Producing bile
ExplanationThe liver produces bile, aiding in digestion and nutrient absorption.
#11
Which type of tissue connects muscles to bones?
Connective tissue
ExplanationConnective tissue links muscles to bones, providing structural support.
#12
In what process is carbon dioxide released as a byproduct?
Cellular respiration
ExplanationCarbon dioxide is released during the process of cellular respiration.
#13
Which hormone is responsible for regulating blood sugar levels?
Insulin
ExplanationInsulin regulates blood sugar levels by facilitating glucose uptake.
#14
Which part of the brain is responsible for controlling voluntary muscle movements and balance?
Cerebellum
ExplanationThe cerebellum controls voluntary muscle movements and balance.
#15
What is the function of the alveoli in the respiratory system?
Exchange of gases (oxygen and carbon dioxide)
ExplanationAlveoli facilitate the exchange of oxygen and carbon dioxide in the lungs.
#16
What is the function of the pancreas in the endocrine system?
Producing insulin and glucagon
ExplanationThe pancreas regulates blood sugar by producing insulin and glucagon.
#17
Which process is responsible for the production of gametes (sperm and egg cells)?
Meiosis
ExplanationMeiosis produces gametes through cell division.