Topic 1 - Key Concepts In Biology (Cells) Flashcards
State 5 subcellular structures that both plant and animal cells have
Nucleus, Cell Membrane, Mitochondria, Ribosome, Cytoplasm
Which subcellular structure contains the genetic information
Nucleus
Which subcellular structure controls what enters and leaves the cell
Cell Membrane
Which subcellular structure is the site of respiration
Mitochondria
Which subcellular structure is the site of protein synthesis
Ribosomes
What is the jelly-like substance where most of the cell’s activities take place
Cytoplasm
State three subcellular structures found in plant cells but not animal cells
Chloroplasts, Cell Wall, Permanent Vacuole
Which plant subcellular structure contains cell sap and helps keep the cell firm and rigid
Permanent Vacuole
Which plant subcellular structure contains chlorophyll
Chloroplasts
Which plant subcellular structure is made of cellulose and supports the cell
Cell Wall
What is a prokaryotic cell
A cell without a nucleus
What is a eukaryotic cell
A cell with a nucleus
State 5 subcellular structures found in a bacterium cell
Chromosomal DNA, Plasmid DNA, Cell Membrane, Ribosomes, Flagellum
How are small intestine cells adapted for absorption
Outer membrane folded to form microvilli
How is the human egg cell adapted for reproduction
Haploid nucleus, the cell membrane becomes hard after fertilization, to stop other sperm entering, cytoplasm packed with nutrients
How is the human sperm cell adapted for fertilization
Haploid nucleus, acrosome vacuole in the head contains enzymes to break egg cytoplasm, a large number of mitochondria to release energy for the tail, tail allows sperm to swim
How are ciliated cells adapted for their function
Have strands that contract and wave to move substances
How is electron microscopy different to light microscopy
Electron uses a beam of electrons not light, has greater magnification and resolution
What is the order of magnitudes for the Milli, micro, nano, and pico
10¬3, 10¬6, 10¬9, 10¬12
