Lesson 3.1.2
3.1.2 Eukaryotic ultrastructure and electron micrographs Quiz: Pearson Edexcel Biology, Unit 3
20 questions
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Lesson 3.1.2, Eukaryotic ultrastructure and electron micrographs: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 3: Voice of the Genome, written with Revision Ninja.
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The 20 questions
-
Which organelle has a double membrane with inner folds called cristae?
- Mitochondrion
- Lysosome
- Golgi apparatus
- Centriole
-
Which organelle contains digestive enzymes and breaks down worn-out organelles?
- Nucleolus
- Lysosome
- Centriole
- Ribosome
-
Which type of cell contains centrioles?
- Bacterial cells
- Animal cells
- Fungal cells
- Plant cells
-
Which structure within the nucleus makes ribosomal RNA and assembles ribosome subunits?
- Chromatin
- Nuclear pore
- Nuclear envelope
- Nucleolus
-
Which molecule leaves the nucleus through nuclear pores during protein synthesis?
- mRNA
- Glycogen
- DNA
- Glucose
-
Which organelle is the site of protein synthesis on the rough endoplasmic reticulum?
- Vacuole
- Ribosome
- Centriole
- Microtubule
-
Which organelle is present in animal cells but usually absent from plant cells?
- Nucleus
- Mitochondrion
- Golgi apparatus
- Centriole
-
An electron micrograph shows a mitochondrion 6 cm long at a magnification of x20,000. What is its actual length?
- 3 um
- 0.03 um
- 30 um
- 0.3 um
-
A cell appears 80 mm across in a light micrograph at a magnification of x400. What is its actual diameter?
- 200 um
- 20 um
- 32 um
- 2 mm
-
Which structure is found in plant cells but absent from animal cells?
- Ribosome
- Golgi apparatus
- Chloroplast
- Mitochondrion
-
Why do electron microscopes have a higher resolution than light microscopes?
- Longer wavelength
- Larger lenses
- Higher frequency light
- Shorter wavelength
-
A structure measures 15 mm in an image and is 0.5 um in reality. What is the magnification?
- 300,000
- 3,000
- 7,500
- 30,000
-
Which organelle is the main site of aerobic respiration and ATP production?
- Mitochondrion
- Lysosome
- Golgi apparatus
- Nucleolus
-
What is a primary function of the smooth endoplasmic reticulum?
- Lipid synthesis
- Aerobic respiration
- Protein synthesis
- ATP production
-
A student sees cristae in an electron micrograph. Which organelle is being observed?
- Mitochondrion
- Chloroplast
- Golgi apparatus
- Lysosome
-
Which organelle contains stacks of membranes called thylakoids?
- Centriole
- Mitochondrion
- Vacuole
- Chloroplast
-
What term describes a structure seen in a micrograph caused by specimen preparation?
- Organelle
- Granule
- Inclusion
- Artefact
-
In which specific region of a mitochondrion does the Krebs cycle take place?
- Cristae
- Matrix
- Outer membrane
- Intermembrane space
-
What is the main function of the nucleolus in eukaryotic cells?
- DNA replication
- Ribosome production
- Protein transport
- ATP synthesis
-
Which structure in a eukaryotic cell is a double membrane that encloses the genetic material and has pores?
- Plasma membrane
- Nuclear envelope
- Lysosome membrane
- Tonoplast
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