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WorksheetsCell And tissue 1
Total questions: 28
Worksheet time: 14mins
What is the smallest structural and functional unit of the body?
Cell
Tissue
Organ
System
What are the three main parts of a cell?
Plasma, Golgi apparatus, nucleus
Nucleus, cytoplasm, cell membrane
Mitochondria, lysosomes, ribosomes
Cytoplasm, smooth ER, nucleus
Which of the following is NOT a function of the plasma membrane?
Physical isolation
Regulation of material exchange
Synthesis of proteins
Structural support
What makes the plasma membrane selectively permeable?
Presence of integral proteins
Phospholipid bilayer structure
Peripheral proteins
Cholesterol molecules
Which of the following is an active transport process?
Diffusion
Osmosis
Solute pumping
Facilitated diffusion
In a hypotonic solution, the cell will likely:
Shrink
Swell
Remain unchanged
Burst
Which type of transport involves the engulfment of extracellular material into the cell?
Exocytosis
Endocytosis
Osmosis
Diffusion
Which of the following organelles is considered the powerhouse of the cell?
Mitochondria
Golgi apparatus
Lysosomes
Nucleus
Which organelle is responsible for synthesizing ribosomal RNA?
Nucleolus
Smooth ER
Rough ER
Lysosome
What is the primary function of the smooth endoplasmic reticulum?
Lipid synthesis and detoxification
Protein modification
Carbohydrate storage
Transport of proteins to the nucleus
In which phase of mitosis do chromosomes align at the equatorial plate?
Prophase
Metaphase
Anaphase
Telophase
What process separates duplicated chromosomes into two identical nuclei?
Meiosis
Exocytosis
Mitosis
Cytokinesis
Which cell division type is responsible for the formation of gametes?
Mitosis
Binary fission
Endocytosis
Meiosis
What type of protein allows certain ions or molecules to pass through the plasma membrane?
Recognition protein
Transport protein
Peripheral protein
Receptor protein
What is the main function of receptor proteins?
Transport molecules across the membrane
Trigger cellular responses when bound to ligands
Identify the cell for the immune system
Store genetic material
Which part of the cytoskeleton is responsible for cell shape and structural support?
Microvilli
Microfilaments
Golgi apparatus
Lysosomes
What is the role of microtubules in a cell?
Protein synthesis
Movement of the cell or materials across the surface
DNA replication
Lipid synthesis
Which process moves substances against their concentration gradient?
Diffusion
Facilitated diffusion
Active transport
Osmosis
What process involves the expulsion of substances from the cell?
Pinocytosis
Exocytosis
Endocytosis
Osmosis
What is phagocytosis?
Cellular drinking
Cellular eating
Protein synthesis
Passive transport
Which of the following describes receptor-mediated endocytosis?
Engulfing extracellular fluid
Formation of vesicles around targeted molecules
Passive transport of nutrients
Secretion of cell debris
What is the function of the nucleus?
Store genetic information
Produce ATP
Digest cellular debris
Detoxify harmful substances
What do histones bind with to form nucleosomes?
DNA
RNA
Chromosomes
Ribosomes
How many pairs of chromosomes are present in a human somatic cell?
20
22
23
46
What is the main function of lysosomes?
Energy production
Intracellular digestion of damaged organelles and macromolecules
Lipid synthesis
Protein transport
Which enzyme-filled structure participates in endocytosis defense mechanisms?
Mitochondria
Ribosome
Lysosome
Nucleus
Which high-energy molecule is produced by the mitochondria?
DNA
RNA
ATP
NAD+
The cristae within mitochondria serve to:
Protect the nucleus
Detoxify harmful substances
Increase surface area for energy production
Assist in protein synthesis
