#1
Which cellular structure is responsible for generating energy in a cell?
Mitochondria
ExplanationMitochondria produce ATP, the cell's energy currency, through cellular respiration.
#2
Which of the following tissues is responsible for transmitting electrical signals in the body?
Nervous tissue
ExplanationNervous tissue, consisting of neurons, transmits electrical signals for communication and coordination.
#3
Which type of tissue covers the body surfaces and lines body cavities?
Epithelial tissue
ExplanationEpithelial tissue forms protective barriers, covering body surfaces and lining body cavities.
#4
Which cellular structure contains the genetic material and controls cellular activities?
Nucleus
ExplanationThe nucleus contains DNA and RNA, directing cellular activities and controlling gene expression.
#5
Which type of tissue supports and connects different structures in the body?
Connective tissue
ExplanationConnective tissue supports and connects various structures in the body, including bones, tendons, and ligaments.
#6
Which organelle is responsible for detoxification and metabolism of drugs in liver cells?
Peroxisome
ExplanationPeroxisomes in liver cells aid in detoxification and metabolism of drugs and harmful substances.
#7
Which cellular structure is involved in protein synthesis?
Ribosome
ExplanationRibosomes are the cellular structures responsible for protein synthesis, translating mRNA into polypeptide chains.
#8
Which organelle is responsible for the synthesis of lipids and steroid hormones?
Endoplasmic reticulum
ExplanationThe endoplasmic reticulum is involved in lipid synthesis, including phospholipids and steroid hormones.
#9
Which organelle is responsible for the breakdown of cellular waste and debris?
Lysosome
ExplanationLysosomes contain enzymes for digesting cellular waste and recycling cellular components.
#10
Which cellular structure is responsible for packaging and sorting proteins for secretion?
Golgi apparatus
ExplanationThe Golgi apparatus modifies, sorts, and packages proteins for secretion or use within the cell.
#11
Which type of tissue provides support and structure to organs in the body?
Connective tissue
ExplanationConnective tissue supports and connects various structures in the body, providing strength and elasticity.
#12
Which type of tissue enables movement of body parts and organs?
Muscle tissue
ExplanationMuscle tissue contracts to produce movement in body parts and organs.
#13
Which cellular structure contains enzymes for breaking down waste products?
Lysosome
ExplanationLysosomes contain hydrolytic enzymes for breaking down waste materials and cellular debris.
#14
Which cellular structure is responsible for regulating what enters and leaves the cell?
Plasma membrane
ExplanationThe plasma membrane regulates the passage of substances in and out of the cell, maintaining cellular homeostasis.
#15
Which cellular structure is responsible for intracellular digestion and recycling of cellular components?
Lysosome
ExplanationLysosomes contain enzymes for digesting cellular waste and recycling cellular components through autophagy.