Homeostasis & Adaptation
10 August 2024The Skeletal System
10 August 2024Q: Which of the following organelles is known as the "powerhouse of the cell"?
a)Golgi Apparatus
b) Ribosome
c) Mitochondria
d) Lysosome
Answer: c) Mitochondria
Q: What is the primary function of the plasma membrane?
a)To provide energy to the cell
b) To synthesize proteins
c) To regulate the entry and exit of substances
d) To store genetic material
Answer: c) To regulate the entry and exit of substances
Q:Which structure is responsible for protein synthesis in a cell?
a)Mitochondria
b) Ribosomes
c) Endoplasmic Reticulum
d) Golgi Apparatus
Answer: b) Ribosomes
Q: Which organelle is involved in modifying, sorting, and packaging proteins and lipids?
a)Lysosome
b) Golgi Apparatus
c) Endoplasmic Reticulum
d) Nucleus
Answer: b) Golgi Apparatus
Q: What is the primary function of lysosomes in a cell?
a)Energy production
b) DNA replication
c) Digestion and recycling of cellular waste
d) Protein synthesis
Answer: c) Digestion and recycling of cellular waste
Q: The structure of the cell that contains the cell’s genetic material is the:
a)Mitochondria
b) Ribosome
c) Nucleus
d) Plasma Membrane
Answer: c) Nucleus
Q: What role does the endoplasmic reticulum (ER) play in the cell?
a)Synthesizes lipids and proteins
b) Digests macromolecules
c) Produces ATP
d) Maintains cell shape
Answer: a) Synthesizes lipids and proteins
Q: Which component of the cytoskeleton is involved in cell movement and shape?
a)Microtubules
b) Intermediate filaments
c) Microfilaments
d) Ribosomes
Answer: c) Microfilaments
Q: What is the function of peroxisomes in a cell?
a)To produce ATP
b) To detoxify harmful substances and break down fatty acids
c) To synthesize proteins
d) To package and transport cellular products
Answer: b) To detoxify harmful substances and break down fatty acids
Q: During which phase of the cell cycle does DNA replication occur?
a)G1 Phase
b) S Phase
c) G2 Phase
d) M Phase
Answer: b) S Phas
Q: Which phase of mitosis involves the alignment of chromosomes at the cell’s equatorial plane?
a)Prophase
b) Metaphase
c) Anaphase
d) Telophase
Answer: b) Metaphase
Q: During which stage of meiosis does crossing over occur?
a)Prophase I
b) Metaphase I
c) Anaphase I
d) Telophase II
Answer: a) Prophase I
Q: What is the result of meiosis in terms of chromosome number?
a)Chromosome number is doubled
b) Chromosome number remains the same
c) Chromosome number is halved
d) Chromosome number is tripled
Answer: c) Chromosome number is halved
Q: What is the result of meiosis in terms of chromosome number?
a)Two
b) Four
c) Eight
d) Six
Answer: a) Two
Q: In which stage of mitosis are sister chromatids separated and pulled to opposite poles of the cell?
a)Prophase
b) Metaphase
c) Anaphase
d) Telophase
Answer: c) Anaphase
Q: What is the final outcome of meiosis II?
a)Two diploid cells
b) Four diploid cells
c) Four haploid cells
d) Two haploid cells
Answer: c) Four haploid cells
Q: During which phase of meiosis do homologous chromosomes separate into different cells?
a)Prophase I
b) Metaphase I
c) Anaphase I
d) Telophase I
Answer: c) Anaphase I
Q: Which process is primarily involved in growth and repair?
a)Meiosis
b) Mitosis
c) Cytokinesis
d) Fertilization
Answer: b) Mitosis
Q: Which stage of meiosis is characterized by the separation of sister chromatids?
a)Metaphase I
b) Anaphase I
c) Metaphase II
d) Anaphase II
Answer: d) Anaphase II
Q: In which phase of mitosis does the nuclear envelope reappear and chromosomes begin to decondense?
a)Prophase
b) Metaphase
c) Anaphase
d) Telophase
Answer: d) Telophase
Q: Which of the following processes is responsible for growth and development in multicellular organisms?
a)Meiosis
b) Mitosis
c) Cytokinesis
d) Binary Fission
Answer: b) Mitosis
Q: What is the primary function of meiosis in sexually reproducing organisms?
a)Repair of tissues
b) Production of gametes
c) Replacement of dead cells
d) Growth of tissues
Answer: b) Production of gametes
Q: During which process does genetic variation occur due to crossing over and independent assortment?
a)Mitosis
b) Meiosis
c) Binary Fission
d) Cytokinesis
Answer: b) Meiosis
Q: What is the result of mitosis in terms of chromosome number in daughter cells?
a)Chromosome number is halved
b) Chromosome number is doubled
c) Chromosome number remains the same
d) Chromosome number varies randomly
Answer: c) Chromosome number remains the same
Q: Which process ensures that the chromosome number is halved for gamete formation?
a)Mitosis
b) Meiosis
c) Binary Fission
d) Cytokinesis
Answer: b) Meiosis
Q: In which process are two genetically identical daughter cells produced from a single parent cell?
a)Meiosis
b) Mitosis
c) Fertilization
d) DNA Replication
Answer: b) Mitosis
Q: Which of the following is a key outcome of meiosis that contributes to evolution?
a)Formation of genetically identical cells
b) Production of gametes with full chromosome number
c) Introduction of genetic diversity
d) Repair of damaged tissues
Answer: c) Introduction of genetic diversity
Q: How many daughter cells are produced at the end of meiosis?
a)Two
b) Four
c) Eight
d) Six
Answer: b) Four
Q: Which process is used for asexual reproduction in unicellular organisms?
a)Mitosis
b) Meiosis
c) Binary Fission
d) Fertilization
Answer: c) Binary Fission
Q: What ensures that each generation of sexually reproducing organisms maintains a stable chromosome number?
a)Mitosis
b) Meiosis
c) Cytokinesis
d) Crossing Over
Answer: b) Meiosis
Q: Which of the following types of epithelial tissue is most commonly found lining the respiratory tract?
a)Simple Squamous
b) Simple Cuboidal
c) Pseudostratified Columnar
d) Stratified Squamous
Answer: c) Pseudostratified Columnar
Q: What is the primary function of stratified squamous epithelium?
a)Absorption
b) Secretion
c) Protection
d) Filtration
Answer: c) Protection
Q: Which type of connective tissue provides structural support and stores energy?
a)Adipose Tissue
b) Cartilage
c) Bone
d) Blood
Answer: a) Adipose Tissue
Q: Which connective tissue type has a fluid matrix and is responsible for transporting nutrients and gases?
a)Bone
b) Blood
c) Cartilage
d) Dense Regular Connective Tissue
Answer: b) Blood
Q: Which type of muscle tissue is characterized by striations and voluntary control?
a)Cardiac Muscle
b) Smooth Muscle
c) Skeletal Muscle
d) Epithelial Tissue
Answer: c) Skeletal Muscle
Q: Where is smooth muscle tissue typically found?
a)In the walls of the heart
b) In the lining of the intestines
c) In the skin
d) In tendons
Answer: b) In the lining of the intestines
Q: Which type of muscle tissue is found in the walls of the heart and has intercalated discs?
a)Smooth Muscle
b) Skeletal Muscle
c) Cardiac Muscle
d) Epithelial Tissue
Answer: c) Cardiac Muscle
Q: What are the primary functional cells of nervous tissue that conduct electrical impulses?
a)Glial Cells
b) Neurons
c) Schwann Cells
d) Astrocytes
Answer: b) Neurons
Q: Which type of glial cell is responsible for forming myelin sheaths in the central nervous system?
a)Microglia
b) Oligodendrocytes
c) Astrocytes
d) Ependymal Cells
Answer: b) Oligodendrocytes