AP Bio-Chapter 6

Multiple Choice

Which of the following correctly lists the objects in order from largest to smallest?

• human body, mitochondrion, lipid, frog egg

• frog egg, mitochondrion, lipid, human body

• human body, frog egg, mitochondrion, lipid

• mitochondrion, frog egg, lipid, human body

Multiple Choice

Which image shows the best resolution?

Multiple Choice

If you were fractionating cells using centrifugation and mixed up your fractions, what would you look for to identify the first fraction collected?

• microsomes

• chloroplasts

• nuclei

• ribosomes

• none of the above

Multiple Choice

Which structure is common to all three domains of life?

• nucleus

• endoplasmic reticulum

• mitochondria

• phospholipid bilayer cell membrane

• endocytotic vesicles

Multiple Choice

Where are enzymes responsible for biosynthesis of membrane lipids located?

• endoplasmic reticulum

• nucleus

• lysosomes

• Golgi apparatus

• plasma membrane

Multiple Choice

Which protein is not made at the rough ER?

• insulin (a secreted proteinaceous hormone)

• a digestive enzyme of the gut

• an antibody in the blood

• a protein that enters the nucleus to bind with DNA

• collagen from the extracellular matrix

Multiple Choice

A eukaryotic cell carries out phagocytosis and engulfs a bacterial cell, which ends up in the resulting food vacuole. To go from the cytosol of this bacterial cell to outside of the eukaryotic cell that has taken it in, what is the least number of biological membranes that would have to be crossed?

• 2

• 4

• 1

• 5

• 3

Multiple Choice

What is the correct order of the exocytosis or secretion pathway?

• Rough ER, endosome, Golgi, smooth ER

• Rough ER, Golgi, smooth ER, plasma membrane

• Smooth ER, rough ER, exocytosis, Golgi

• Rough ER, Golgi, transport vesicle, plasma membrane

• Rough ER, Golgi, endosome, plasma membrane, transport vesicle

Multiple Choice

Brefeldin A is a drug that disrupts transport from the ER to the Golgi apparatus. What other organelles and membranes in an animal cell would be affected by this drug?

• lysosomes, transport vesicles, plasma membrane, nuclear membrane

• mitochondria, peroxisomes, plasma membrane

• vacuoles, mitochondria, plasma membrane

• lysosomes, transport vesicles, nuclear membrane

• all intracellular organelles and membranes

Multiple Choice

Which of the following statements contributes least to the argument that mitochondria and chloroplasts evolved from prokaryotic endosymbionts?

• Mitochondria and chloroplasts have double membranes.

• Mitochondria and chloroplasts have their own ribosomes.

• Mitochondria and chloroplasts have their own DNA.

• The mitochondrial and chloroplast genomes are circular.

• Both the matrix and stromal spaces of these organelles contain many types of soluble proteins.

Multiple Choice

Alcohol is destroyed in the cell by the removal of hydrogen atoms. Where does this occur?

• lysosome

• smooth ER

• peroxisome

• rough ER

• Golgi apparatus

Multiple Choice

If you were using compartment-specific stains and found that a stain for the nuclear envelope lightly stained another compartment as well, what would that other compartment be?

• endoplasmic reticulum

• mitochondrion

• chloroplast

• peroxisome

• Golgi

Multiple Choice

If you were studying mutant cells and found that many proteins are going to the wrong compartments in these cells, where is the mutation having the greatest effect?

• nuclear envelope

• endoplasmic reticulum

• Golgi apparatus

• peroxisome

• mitochondrion

Multiple Choice

If you were looking at electron micrographs and saw an organelle with multiple concentric membranes, at what might you be looking?

• nuclear envelope

• peroxisome

• mitochondrion

• chloroplast

• not enough information is given to be able to answer

Multiple Choice

Taxol, a drug approved for the treatment of breast cancer, prevents depolymerization of microtubules. With what cellular function might Taxol interfere?

• maintaining cell shape

• cell motility (cilia or flagella)

• chromosome movements in cell division

• cell division (cleavage furrow formation)

• cytoplasmic streaming

Multiple Choice

A large plant cell will have proportionally a large amount of which protein?

• fibronectin

• myosin

• dynein

• collagen

• keratin

Multiple Choice

If extracellular matrices and cell walls provide protection from pathogenic microbes that attempt to enter the cell, what size should the pores in the structures shown in this figure be?

• 1 nm

• 5 nm

• 40 nm

• 1 μm

• 100 μm

Multiple Choice

Many types of polysaccharides (such as glucosamine, chondroitin, and hyaluronate) are sold in health food and grocery stores to help reduce pain and increase flexibility in the joints. They are molecules that make up ________

• the cytoskeleton.

• the extracellular matrix.

• nuclear pores.

• plasma membrane receptors.