Cell Structure

Question 1

-Thin,flexible.outermost barrier of the cell.
-made up of a double layer of phospholipds
-allows water and chemicals to pass in and out
-permeable and selective
Pick 1:
a)Cytoplasm
b)Cell(plasma membrane)
c)Flagella
d)Vacuoles

Answer 1

Cell (plasma) membrane

Question 2

-Cytosol
-Thick, semisolid substance that contains mostly water
-site of cellular activity
-holds organelles
Pick 1:
a)Cytoplasm
b)Cell(plasma membrane)
c)Mitochondria
d)Vacuoles

Answer 2

Cytoplasm

Question 3

-Encloses the membrane
-Double-layered
-Has pores that allow passage of material as necessary
Pick 1:
a)Flagella
b)Cell(plasma membrane)
c)Mitochondria
d)Nuclear Membrane

Answer 3

Nuclear Membrane

Question 4

-Controls center of the cell
-contains genetic material (DNA)
Pick 1:
a)Nucleolus
b)Cell(plasma membrane)
c)Nucleus
d)Nuclear Membrane

Answer 4

Nucleus

Question 5

-Small, dense structure located in the nucleus
-Important in the synthesis of ribosomes
Pick 1:
a)Nucleolus
b)Cell(plasma membrane)
c)Nucleus
d)Centrioles

Answer 5

Nucleolus

Question 6

-Hollow, rod-shaped structures found in the cytoplasm near the nucleus
-Play an important role in cell division
Pick 1:
a)Golgi Apparatus
b)Centrioles
c)Lysosomes
d)Flagella

Answer 6

Centrioles

Question 7

-Complex network of tubular channels
-“Transportation system” of the cell
-Allows molecules to move from one part of the cell to another
Two types:
1)Rough: Ribosomes attached; trasports proteins
2)Smooth: without ribosomes; manufactures lipids and hormones
Pick 1:
a)Lysosomes
b)Centrioles
c)Endoplasmic Reticulum
d)Flagella

Answer 7

Endoplasmic reticulum

Question 8

-stack of flattened sacs
-located near the nucleus
-proceses and packages protiens
Pick 1:
a)Microvilli
b)Centrioles
c)Golgi Apparatus
d)Flagella

Answer 8

Golgi Apparatus

Question 9

-Sacs of various sizes and shapes
-contain strong chemicals that digest various substances that enter the cytoplasm
Pick 1:
a)Lysosomes
b)Centrioles
c)Endoplasmic Reticulum
d)Vacuoles

Answer 9

Lysosomes

Question 10

-Sausage-shaped sacs
-Inner layer arranged in folds
-“powerhouse” of the cell
-Source of energy for cells and tissues
Pick 1:
a)Mitochondia
b)Microtubules
c)Endoplasmic Reticulum
d)Vacuoles

Answer 10

Mitochondria

Question 11

-Extremely small, hollow tubes
-Crisscross cytoplasm to form a “skeleton”
-Give cells strength and shape
Pick 1:
a)Cytoplasm
b)Microtubules
c)Microvilli
d)Vacuoles

Answer 11

Microtubules

Question 12

-Membranous sacs that resemble lysosomes
-Contain enzymes that detoxify harmful substances
Pick 1:
a)Flagella
b)Microtubules
c)Microvilli
d)Peroxisomes

Answer 12

Peroxisomes

Question 13

-Composed of ribonucleic ace(RNA) and protein
-Form amino acids into new protein molecules
-Some are free-floating in the cytoplasm; some are attached to endoplasmic reticulum
Pick 1:
a)Golgi Apparatus
b)Centrioles
c)Ribosomes
d)Flagella

Answer 13

Ribosomes

Question 14

-Membrane-bound sacs that appear in the cytoplasm when the cell membrane folds inward on itself
-Contain fluid or solid substances
-Lysosomes can empty their enzymes into the sac
-Aid in metabolic activity of the cell
Pick 1:
a)Lysosomes
b)Vacuoles
c)Endoplasmic Reticulum
d)Flagella

Answer 14

Vacuoles

Question 15

-Tiny fingerlike extensions that project from the surface of certain cells
-Increase absorptive surface of cell
Pick 1:
a)Golgi Apparatus
b)Centrioles
c)Ribosomes
d)Microvili

Answer 15

Microvilli

Question 16

-Hairlike projections on the surface of the cell
-Move substances along the cell surface
Pick 1:
a)Lysosomes
b)Vacuoles
c)Cilia
d)Flagella

Answer 16

Cilia

Question 17

-Hairlike projection from the surface of the cell
-Provides movement
Pick 1:
a)Lysosomes
b)Vacuoles
c)Endoplasmic Reticulum
d)Flagella

Answer 17

Flagella