WorksheetsTopic 1.2: Ultrastructure of Cells
Total questions: 12
Worksheet time: 6mins
The electron micrograph shows a section through a cell. What is the name of the cell component labelled Y?
Golgi apparatus
Nucleus
Cytoplasm
Vacuole
The image shows an electron micrograph of part of a cell. Which features do the two structures labelled X and Y have in common?
They are surrounded by a double membrane.
They contain 70S ribosomes.
They contain naked DNA.
They are only found in leaf cells.
Which structures are found only in prokaryotic cells?
Ribosomes
Pili
Cell walls
Flagella
The electron micrograph shows part of a cell. Which organelle is the site of aerobic respiration?
A
B
C
D
Where could genes be located in a prokaryotic cell?
A
B
C
D
The image shows an electron micrograph of a cell. Which organelles correspond to the labels in the electron micrograph of this cell?
A
B
C
D
What evidence from the image of Paramecium indicates whether the organism is a prokaryote or a eukaryote?
Compartments in the cell indicate that it is a eukaryote.
No nucleus indicates that the cell is a prokaryote.
Lack of a cell wall indicates that the cell is a eukaryote.
It is a unicellular organism, so it must be a prokaryote.
The following electron micrograph shows part of a palisade mesophyll cell. Which of the labelled structures controls the exchange of substances to and from the cell?
A
B
C
D
Which organelle is involved in generating vesicles destined for the cell membrane?
Golgi apparatus
Smooth endoplasmic reticulum
Rough endoplasmic reticulum
Lysosome
The image shows an electron micrograph of mesophyll cells. What is the name of the structure labelled X?
Cytoplasm
Mitochondrion
Nucleus
Chloroplast
What distinguishes prokaryotic cells and eukaryotic cells?
A
B
C
D
What is a function of the plant cell wall?
Formation of vesicles for transport of large molecules
Prevention of excessive water uptake
Communication with other cells by means of glycoproteins
. Active transport of ions
