Chapter 6

Question 1

Organelles

Answer 1

The membrane-enclosed structures within eukaryotic cells.

Question 2

Cell fractionation

Answer 2

Takes cells apart and separates major organelles and other subcellular structures from one another.

Question 3

All cells have…

Answer 3

Plasma membrane-selective barrier. Cytosol-subcellular components are suspended in. Chromosomes-carry genes. Ribosomes-tiny complexes that make proteins.

Question 4

Nucleoid

Answer 4

In a prokaryotic cell, where the DNA is concentrated but not membrane enclosed.

Question 5

Cytoplasm

Answer 5

The interior of either type of cell.

Question 6

Plasma membrane

Answer 6

Functions as a selective barrier that allows passage of enough oxygen, nutrients, and wastes to service the entire cell.

Question 7

Flagellum

Answer 7

motility structure in animal cells, made of a cluster of microtubules within an extension of the plasma membrane.

Question 8

Centrosome

Answer 8

Region where the cell’s microtubules are initiated; contains a pair of centrioles.

Question 9

Cytoskeleton

Answer 9

Reinforces the cell’s shape, made from microfilaments, intermediate filaments, and microtubules.

Question 10

Microvilli

Answer 10

Projections that increase the cell’s surface area.

Question 11

Peroxisome

Answer 11

Produces hydrogen peroxide as a by-product then converts it to water.

Question 12

Mitochondrion

Answer 12

Where cellular respiration occurs, and most ATP is generated.

Question 13

Lysosome

Answer 13

Digestive organelle where macromolecules are hydrolyzed.

Question 14

Golgi apparatus

Answer 14

Active in synthesis, modification, sorting, and secretion of cell products.