29 Questions
What is the basic structural and functional unit in all tissues?
Cells
Which organelle in human cells contains membrane-enclosed structures with specific functions?
Mitochondria
What macromolecules partly construct different human cells?
Nucleic acids
Which part of the cell is responsible for cell division in humans and other multicellular organisms?
Mitosis
What is an important function of lysosomes in human cells?
Digestion of waste materials
Which cellular component is involved in maintaining cell shape and aiding in cell division?
Cytoskeleton
What is the main function of lipids in the body?
Providing insulation and storing energy
Which cell structure actively controls the movement of materials in and out of the cell?
Plasma membrane
What is the function of the glycocalyx in animal cells?
Provides biochemical identity at the cell surface
Where is ribosomal RNA synthesized in a cell?
Nucleolus
What does the nucleus house within its membrane-bound structure?
DNA and RNA
In prokaryotes, where is the genetic material compacted?
Nucleoid
What distinguishes microtubules from microfilaments and intermediate filaments?
Protein type, diameter, and how they aggregate
Which protein makes up microtubules?
Tubulin
What is the main function of microfilaments?
Enabling cells to withstand stretching and compression
Where are intermediate filaments abundant?
In skin and nerve cells
Why are whitefish blastula cells preferred for studying mitosis?
They have easily visible chromosomes during cell division
What is the role of microtubules in cellular movements?
Facilitating various cellular movements
What happens during the S phase of interphase?
Chromosomes duplicate
Which phase involves the condensation of chromosomes making them distinguishable?
Prophase
What is the main activity of the G1 phase of interphase?
Cell grows in size
What characterizes the chromosomes during early prophase?
Condensed and distinguishable
When does the nuclear envelope disperse in mitosis?
Prophase
What is a key difference between prokaryotes and eukaryotes?
Prokaryotes have a nucleus, while eukaryotes lack one
Which type of cells are bone, blood, nerve, and muscle cells?
Somatic cells
What is the genetic composition of somatic cells?
Diploid with two copies of the genome
What characteristic distinguishes sperm and egg cells from somatic cells?
Haploid nature with one copy of the genome
Which macromolecules are important constituents of cells for biological processes?
Carbohydrates, lipids, proteins, and nucleic acids
What can be observed in cell division where two daughter cells have the same complement of chromosomes as the parental cells?
Mitosis
Test your knowledge on the basics of cell biology including carbohydrates, lipids, proteins, and nucleic acids. Explore the functions of cell structures and organelles such as the plasma membrane.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
