Quiz 1: Topic 1 and 2

Which statement is a tenet of the cell theory?

Only eukaryotic cells are organisms

All cells acquire DNA outside themselves

Cells can arise spontaneously

All living things are made of cells

All living things are made of cells

All cells share which of the following?

Chloroplasts

Plasma membrane, DNA, and similar basic chemistry

Complex multicellularity

Nucleus

Plasma membrane, DNA, and similar basic chemistry

What is the correct order of the central dogma of gene expression?

DNA → RNA → Protein

DNA → Protein → RNA

Protein → RNA → DNA

RNA → DNA → Protein

DNA → RNA → Protein

A scientist claims viruses are living cells. Which principle best refutes this?

Viruses lack DNA

Viruses require host cells for replication

Viruses have ribosomes

Viruses produce ATP independently

Viruses require host cells for replication

Who was the first person to coin the term "cell"?

Theodore Schwann

Anthonie van Leeuwenhoek

Robert Hooke

Mathias Schleiden

Robert Hooke

Light microscopy cannot distinguish structures smaller than approximately:

2 mm

1 cm

200 nm

2 nm

200 nm

Which of the following would be a correct estimated size for the protein actin?

7 nm

20 µm

0.2 nm

10 µm

1 angstrom

7 nm

Which of the following statements is false when describing differentiated cells in an organism (i.e., fat cells, skin cells, muscle cells, etc.)?

They all contain identical copies of DNA

They all contain a genome

They vary in size and shape

They all express identical proteins in their cytoplasm

They all express identical proteins in their cytoplasm

Which type of microscopy would be most appropriate to study the localization of a protein during cell migration?

Fluorescence microscopy

Brightfield microscopy

Scanning electron microscopy

Transmission electron microscopy

Fluorescence microscopy

____________________ uses a light microscope with an optical component to take advantage of the ability of cells to refract light in order to observe live cells without staining. 

Transmission electron microscopy

Fluorescence microscopy

Phase contrast microscopy

Confocal microscopy

Phase contrast microscopy

Which organelles have double membranes and their own DNA?

Mitochondria

Golgi apparatus

Ribosomes

Lysosomes

Mitochondria

Which of the following organelles contains catalase in order to degrade hydrogen peroxide?

Lysosomes

Vesicles

Peroxisome

Endoplasmic reticulum

Peroxisome

What is the approximate size range of most eukaryotic cells?

1-2 µm

1-2 mm

10 - 40 µm

0.1 - 1 µm

10 - 40 µm

Which organelle is the site of protein synthesis?

Golgi Apparatus

Ribosome

Chloroplast

Lysosome

Ribosome

Which model organism is widely used for plant genetics?

Mus musculus

Caenorhabditis elegans

Arabidopsis thaliana

Drosophila melanogaster

Arabidopsis thaliana

In what way do chloroplasts resemble mitochondria?

Both are unique to prokaryotes

Both perform photosynthesis

Both lack double membranes

Both contain their own DNA and ribosomes

Both contain their own DNA and ribosomes

Which of the following cytoskeletal system(s) is/are essential for cell division?

Microtubules AND Intermediate filaments

Actin filaments AND Microtubules

Microtubules

Actin filaments

Intermediate filaments AND Actin filaments

Intermediate filaments

Actin filaments AND Microtubules

_________________________ is a rare autosomal recessive genetic disorder cuased by a loss of lsosomal enzymes that metabolize lipids. 

Tay-Sachs Disease

Alzheimer's diease

Peroxisomal storage disease

Mitochondrial Disease

Tay-Sachs Disease