Ch 3

The assertion that "life only comes from life" was stated by Louis Pasteur in regard to his experiments that definitively refuted the theory of ___________.

Spontaneous generation

Peroxisomes typically produce _____________, a harsh chemical that helps break down molecules.

hydrogen peroxide

Which of the following cell wall components is unique to gram-negative cells? a. lipopolysaccharide b. teichoic acid c. mycolic acid d. peptidoglycan

A

Which of the following individuals did not contribute to the establishment of cell theory? a. Girolamo Fracastoro b. Matthias Schleiden c. Robert Remak d. Robert Hooke

A

Which of the following is not composed of microtubules? a. desmosomes b. centrioles c. eukaryotic flagella d. eukaryotic cilia

A

Which of the following developed a set of postulates for determining whether a particular disease is caused by a particular pathogen? a. John Snow b. Robert Koch c. Joseph Lister d. Louis Pasteur

B

Which type of cytoskeletal fiber is important in the formation of the nuclear lamina? a. microfilaments b. intermediate filaments c. microtubules d. fibronectin

B

Which type of nutrient uptake involves the engulfment of small dissolved molecules into vesicles? a. active transport b. pinocytosis c. receptor-mediated endocytosis d. facilitated diffusion

B

Prokaryotic cells that are rod-shaped are called _____________.

Bacilli

Sugar groups may be added to proteins in which of the following? a. smooth endoplasmic reticulum b. rough endoplasmic reticulum c. Golgi apparatus d. lysosome

C

Which of the following experimented with raw meat, maggots, and flies in an attempt to disprove the theory of spontaneous generation. a. Aristotle b. Lazzaro Spallanzani c. Antonie van Leeuwenhoek d. Francesco Redi

C

Which of the following individuals argued in favor of the theory of spontaneous generation? a. Francesco Redi b. Louis Pasteur c. John Needham d. Lazzaro Spallanzan

C

Which of the following terms refers to a prokaryotic cell that is comma shaped? a. coccus b. coccobacilli c. vibrio d. spirillum

C

Whose proposal of the endosymbiotic theory of mitochondrial and chloroplast origin was ultimately accepted by the greater scientific community? a. Rudolf Virchow b. Ignaz Semmelweis c. Lynn Margulis d. Theodor Schwann

C

Which bacterial structures are important for adherence to surfaces? (Select all that apply.) a. endospores b. cell walls c. fimbriae d. capsules e. flagella

C,D

Bacterial cell walls are primarily composed of which of the following? a. phospholipid b. protein c. carbohydrate d. peptidoglycan

D

Which of the following individuals is credited for definitively refuting the theory of spontaneous generation using broth in swan-neck flask? a. Aristotle b. Jan Baptista van Helmont c. John Needham d. Louis Pasteur

D

Which of the following organelles is not part of the endomembrane system? a. endoplasmic reticulum b. Golgi apparatus c. lysosome d. peroxisome

D

Which of the following structures of a eukaryotic cell is not likely derived from endosymbiotic bacterium? a. mitochondrial DNA b. mitochondrial ribosomes c. inner membrane d. outer membrane

D

Which of the following terms refers to a bacterial cell having a single tuft of flagella at one end? a. monotrichous b. amphitrichous c. peritrichous d. lophotrichous

D

22. John Snow is known as the Father of _____________.

Epidemiology

The ____________ theory states that disease may originate from proximity to decomposing matter and is not due to person-to-person contact.

Miasma

The scientist who first described cells was _____________.

Robert Hooke

Bacteria have 80S ribosomes each composed of a 60S large subunit and a 40S small subunit.

False

Exposure to air is necessary for microbial growth.

False

cells. Mitochondria in eukaryotic cells contain ribosomes that are structurally similar to those found in prokaryotic

True

The type of inclusion containing polymerized inorganic phosphate is called _____________.

Volutin

Microfilaments are composed of _____________ monomers.

actin