WorksheetsAQA A level Cells revision
Total questions: 15
Worksheet time: 8mins
What is the structure that contains chromosomes in eukaryotic cells?
Lysosomes
Golgi apparatus
Nucleus
Mitochondria
Which organelle is responsible for photosynthesis in plants and algae?
Mitochondria
Ribosomes
Chloroplasts
Endoplasmic reticulum
What is the main difference between prokaryotic and eukaryotic cells?
Prokaryotic cells lack membrane-bound organelles
Prokaryotic cells have a nucleus
Eukaryotic cells lack a cell wall
Eukaryotic cells have smaller ribosomes
What is the role of lysosomes?
Photosynthesis
Protein synthesis
Releasing lysozymes
DNA replication
What process do eukaryotic cells use to divide and produce two daughter cells?
Binary fission
Mitosis
Meiosis
Osmosis
What is the structure of virus particles?
Cell wall, cytoplasm, and nucleus
Genetic material, capsid, and attachment protein
Membrane-bound organelles
Circular DNA and plasmids
What is the difference between magnification and resolution?
Magnification is the clarity of the image, while resolution is the size of the image
Magnification and resolution both refer to the clarity of the image
Magnification is the size of the image, while resolution is the clarity of the image
Magnification and resolution both refer to the size of the image
What is the principle of cell fractionation and ultracentrifugation?
To identify starch grains in plant cells
To separate cell components
To magnify cell components
To measure the size of cell components
During which phase of the cell cycle does DNA replication occur?
Anaphase
Metaphase
Prophase
Interphase
What is the basic structure of all cell membranes?
Rigid layer of carbohydrates
Fluid-mosaic model
Double layer of proteins
Single layer of phospholipids
What is the role of helper T cells in the immune response?
To produce antibodies
To stimulate cytotoxic T cells, B cells, and phagocytes
To engulf pathogens
To replicate virus particles
What is the effect of antigen variability on disease prevention?
It complicates disease prevention
It has no effect on vaccinations
It enhances the effectiveness of vaccines
It makes diseases easier to prevent
What is the difference between active and passive immunity?
Active immunity is immediate; passive immunity takes time to develop
Active immunity involves antibodies; passive immunity does not
Active immunity comes from vaccines; passive immunity comes from natural infection
Active immunity is long-lasting; passive immunity is temporary
How do prokaryotic cells divide?
Meiosis
Cytokinesis
Mitosis
Binary fission
What is the role of cholesterol in cell membranes?
It serves as genetic material for cell division
It acts as a primary energy source
It restricts the movement of other molecules making up the membrane
It facilitates the movement of molecules across the membrane
