The Cell and Its Organelles Flashcards Preview

Biochemistry: Exam 1 > The Cell and Its Organelles > Flashcards

Flashcards in The Cell and Its Organelles Deck (15):
1

What are the key characteristics of prokaryotic cells that distinguish them from eukaryotic cells?

1) Lack distinct organelles.
2) Lack a distinct nucleus.
3) Have a cell wall.

2

What are the key characteristics of eukaryotic cells (as compared with prokaryotic cells)?

1) Has distinct organelles (specialized , membrane-bound structures that perform a cellular function)
2) Has a distinct nucleus.
3) Some have a cell wall (but not all).

3

What are the regions of the prokaryotic cell wall and membrane (from outer to inner)?

1) Outer membrane
2) Periplasmic space
3) Cell Wall
4) Inner plasma membrane

4

What biomolecules do the plasma membrane and/or cell wall of a eukaryotic cell consist of?

1) Lipids
2) Proteins
3) Carbohydrates

5

Which organelle houses the genomic DNA?

Nucleus

6

Which eukaryotic organelles are the sites of energy production?

1) Mitochondria
2) Chloroplasts (in plants)

7

What organelle in plants stores water, ions, and nutrients?

Vacuoles

8

Vesicles formed by endocytosis

Endosomes

9

Vesicles that contain digestive enzymes and fuse with endosomes to perform phagocytosis?

Lysosomes

10

Organelle that has membranes containing enzymes that synthesize lipids (steroids) and break downdrugs and other molecules

Smooth ER

11

Interconnected network of tubular channels enclosed by membranes that has nucleoprotein ribosomes attached to its surface that synthesize proteins for secretion by the cell or targeting to the cytoplasm

Rough ER

12

Flattened membrane-like sacs near the nucleus; connected with tubules of the RER; this is where large carbohydrate molecules are synthesized and combined with proteins.

Golgi Apparatus

13

Vesicles that fuse with the plasma
membrane to release it's
contents in to extracellular
environment.

Secretory vesicles

14

What process do secretory vesicles participate in in eukaryotic cells?

Exocytosis

15

What structures form the cytoskeleton of the cell?

1) Microtubules
2) Microfilaments
3) Intermediate filaments