Cytology, cell junctions, study of basic tissues

Multiple Choice Questions (MCQs)

1. What is the primary function of tight junctions?
   • A) Provide mechanical strength
   • B) Allow communication between cells
   • C) Regulate passage of substances between cells
   • D) Connect intermediate filaments
   • Answer: C) Regulate passage of substances between cells
2. Which type of tissue is responsible for movement?
   • A) Epithelial
   • B) Connective
   • C) Muscular
   • D) Nervous
   • Answer: C) Muscular
3. What type of connective tissue stores energy?
   • A) Blood
   • B) Adipose tissue
   • C) Cartilage
   • D) Bone
   • Answer: B) Adipose tissue
4. Which cell junction allows for direct communication between adjacent cells?
   • A) Tight junctions
   • B) Desmosomes
   • C) Gap junctions
   • D) Adherens junctions
   • Answer: C) Gap junctions
5. Which type of muscle tissue is involuntary and striated?
   • A) Skeletal muscle
   • B) Cardiac muscle
   • C) Smooth muscle
   • D) None of the above
   • Answer: B) Cardiac muscle
6. What is the primary site of hematopoiesis in the body?
   • A) Liver
   • B) Spleen
   • C) Bone marrow
   • D) Thymus
   • Answer: C) Bone marrow
7. Which component of blood is primarily responsible for oxygen transport?
   • A) White blood cells
   • B) Platelets
   • C) Red blood cells
   • D) Plasma proteins
   • Answer: C) Red blood cells
8. Epithelial tissue can be classified as simple or ________.
   • A) Complex
   • B) Stratified
   • C) Mixed
   • D) Dense
   • Answer: B) Stratified
9. Which type of connective tissue provides strong adhesion between cells under mechanical stress?
   • A) Loose connective tissue
   • B) Dense connective tissue
   • C) Adipose tissue
   • D) Blood
   • Answer: B) Dense connective tissue
10. Neurons are specialized cells that transmit ________ throughout the body.
    • A) Nutrients
    • B) Impulses
    • C) Hormones
    • D) Oxygen
    • Answer: B) Impulses

True/False Statements

1. Epithelial tissue is primarily involved in absorption and secretion.
   • Answer: True
2. Desmosomes are responsible for allowing substances to pass freely between cells.
   • Answer: False
3. Smooth muscle is voluntary and striated.
   • Answer: False
4. Blood is classified as a type of connective tissue.
   • Answer: True
5. Gap junctions connect actin filaments in adjacent cells.
   • Answer: False
6. Bone marrow contains stem cells that differentiate into various blood cell types.
   • Answer: True
7. Tight junctions provide strong adhesion in tissues subject to mechanical stress.
   • Answer: False
8. The primary function of adipose tissue is to provide insulation and energy storage.
   • Answer: True
9. Cardiac muscle is under voluntary control.
   • Answer: False
10. Glial cells support and nourish neurons in nervous tissue.
    • Answer: True

Fill in the Blanks

1. The study of cells is known as ________.
   • Answer: Cytology
2. ________ junctions allow for direct communication between adjacent cells.
   • Answer: Gap
3. The four basic types of tissues are epithelial, connective, muscular, and ________.
   • Answer: Nervous
4. Red blood cells are primarily responsible for transporting ________.
   • Answer: Oxygen
5. The ________ method connects intermediate filaments from adjacent cells.
   • Answer: Desmosome
6. Epithelial tissues can be classified as simple or ________.
   • Answer: Stratified
7. The primary site for blood cell formation is the ________.
   • Answer: Bone marrow
8. ________ muscle is involuntary and non-striated.
   • Answer: Smooth
9. The extracellular matrix in connective tissue consists of fibers such as collagen and ________.
   • Answer: Elastin
10. Neurons are specialized for transmitting ________ throughout the body.
    • Answer: Impulses