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WorksheetsIB Bio Ultrastructure of Cells
Total questions: 36
Worksheet time: 30mins
State the process that takes place in this organelle
(a)
Identify the organelle
(a)
State the structure that carries proteins from the Golgi apparatus to the cell surface membrane
(a)
Identify the structure that controls what can enter and leave the cell
Cell wall
Lysosomes
Golgi apparatus
Cell membrane
Identify the structures that allow bacteria to attach to each other
Villi
Cilia
Pili
Alveoli
Identify the structure whose role is protein synthesis and transport
Golgi apparatus
Nucleus
Chloroplast
Rough endoplasmic reticulum
Identify the thin structure
Flagellum
Lysosome
Cell membrane
70S ribosome
Identify the organelle
Vesicle
Nucleus
Rough endoplasmic reticulum
Polysome
Identify the structure
Golgi apparatus
Mitochondrion
Nucleus
Chloroplast
Identify the structure
Golgi apparatus
Nucleus
Rough endoplasmic reticulum
Chloroplast
Identify the structure that is the site of photosynthesis
Mitochondrion
Chloroplast
Nucleus
Golgi apparatus
Identify the structure that is responsible for energy production in the cell
Cell membrane
Rough endoplasmic reticulum
Mitochondrion
Cell wall
Identify the structure that is involved in the breakdown of waste materials within the cell
Lysosome
Nucleus
Golgi apparatus
Chloroplast
= 1 micron (µm)?
What is Cell differentiation?
The process of cell divison
The process of cells becoming specialized for specific functions
The process of cells becoming identical
The process of cells becoming mutated
Which of the following best describes stem cells?
Cells that have already differentiated
Cells that cannot undergo cell division
Cells that have been mutated
Original human cells that are able to develop into specialized cells
Cells differentiate to perform different functions because
all genes are turned on inside that cell
all genes are turned off inside that cell
different genes are turned on inside that cell
different genes are turned on or off inside that cell
What does it mean to make the object become clearer, sharper, or more in focus?
magnification
resolution
The micrograph of a section through a plant stem shows at least ten different types of cells. What explains the differences between these cells?
Only one gene is expressed in each cell type
Different genes are expressed in each cell type
Only useful genes remain in the DNA of each cell type
Changes in the DNA sequence take place when these cells develop
The image shows a micrograph of the AlphaHerpes virus, a 70 nm virus with a capsule cover.
Why would it be better to use an electron microscope to view the Alphaherpesvirus and its capsule, rather than a light microscope?
70 nanometers is too small to be viewed by a light microscope
Electron microscopes have greater resolution
Electron microscopes have greater magnification
All answers are correct
Deduce the type of cell in the micrograph and why.
Eukaryote, has a cell wall
Eukaryote, the cell is smaller than a prokaryote would be
Prokaryote, no compartmentalization
Prokaryote, the cell membrane is only found in prokaryotes
What is the function of flagella?
Movement
Storing Energy
Producing ATP
Storing Genetic Information
The same unicellular organism was viewed under a light microscope (D) and a scanning electron microscope (E).
What is the reason for the difference in quality in their images?
Light cannot pass through the specimen.
Higher magnification can be achieved with the electron microscope.
The resolution of the electron microscope is higher.
Samples are stained with methylene blue when viewed with the light microscope.
The _______________ of the phospholipids in a cell membrane face inward towards each other.
heads
tails
stems
sticks
