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Human Cell

This test checks your knowledge against the human cell.

1. 1

   What is the basic structural unit of life?

   • Cell
   • Tissue
   • Organ
   • Organism
2. 2

   Which organelle is known as the powerhouse of the cell?

   • Nucleus
   • Ribosome
   • Mitochondrion
   • Golgi apparatus
3. 3

   Where is most of the cell's genetic material stored?

   • Ribosome
   • Nucleus
   • Lysosome
   • Vacuole
4. 4

   Which organelle is responsible for protein synthesis?

   • Ribosome
   • Lysosome
   • Mitochondrion
   • Centrosome
5. 5

   What is the main function of the cell membrane?

   • Protein synthesis
   • Controlling movement of substances
   • Producing DNA
   • Storing chromosomes
6. 6

   Which organelle modifies and packages proteins?

   • Golgi apparatus
   • Nucleus
   • Ribosome
   • Chloroplast
7. 7

   Which organelle contains digestive enzymes?

   • Lysosome
   • Ribosome
   • Centriole
   • Nucleolus
8. 8

   Which structure is found in plant cells but not animal cells?

   • Cell wall
   • Cell membrane
   • Ribosome
   • Cytoplasm
9. 9

   What molecule carries genetic information?

   • ATP
   • Glucose
   • DNA
   • Lipid
10. 10

    What is the fluid inside a cell called?

    • Cytoplasm
    • Chromatin
    • Cell wall
    • Matrix
11. 11

    Which process produces two genetically identical daughter cells?

    • Meiosis
    • Photosynthesis
    • Mitosis
    • Fertilization
12. 12

    What is the main function of chloroplasts?

    • Respiration
    • Photosynthesis
    • Protein digestion
    • DNA replication
13. 13

    Which molecule is the main energy currency of cells?

    • DNA
    • ATP
    • RNA
    • Glucose
14. 14

    What is osmosis?

    • Movement of proteins
    • Movement of water across a selectively permeable membrane
    • Cell division
    • Production of ATP
15. 15

    What does diffusion move substances from?

    • Low to high concentration
    • High to low concentration
    • Equal to unequal pressure
    • Inside to outside only
16. 16

    Which organelle contains ribosomal RNA and assembles ribosomal subunits?

    • Nucleolus
    • Lysosome
    • Vacuole
    • Centrosome
17. 17

    What is the function of the rough endoplasmic reticulum?

    • Lipid storage
    • Protein synthesis and transport
    • DNA storage
    • ATP production
18. 18

    What does smooth endoplasmic reticulum primarily help synthesize?

    • Lipids
    • DNA
    • Ribosomes
    • Cellulose
19. 19

    What is chromatin?

    • DNA associated with proteins
    • Cellular energy
    • Cell membrane material
    • Cytoplasmic fluid
20. 20

    Which cell type lacks a membrane-bound nucleus?

    • Eukaryotic cell
    • Prokaryotic cell
    • Plant cell
    • Animal cell
21. 21

    What is the main function of the cytoskeleton?

    • Cell support and internal organization
    • DNA storage
    • ATP synthesis
    • Photosynthesis
22. 22

    Which structure controls many activities of the cell?

    • Nucleus
    • Ribosome
    • Lysosome
    • Vacuole
23. 23

    What is the process by which cells take in large particles?

    • Exocytosis
    • Endocytosis
    • Diffusion
    • Osmosis
24. 24

    What is exocytosis?

    • Release of materials from the cell
    • Cell division
    • DNA copying
    • Water absorption
25. 25

    Which component forms the bilayer of the cell membrane?

    • Phospholipids
    • Proteins
    • Carbohydrates
    • DNA