Cell Review

Question 1

Cell membrane

Answer 1

Location:
- External boundary of the cell

Function:
- Confines cell contents; regulates entry and exit of material

Question 2

Lysosome

Answer 2

Location: Throughout cell

Function: Contain digestive enzymes (breakdown)

Question 3

Mitochondria

Answer 3

Location: Scattered throughout the cell

Function: Controls release of energy from foods; forms ATP

Question 4

Microvilli

Answer 4

Location: Projections of the cell membrane

Function: Increase the membrane surface area

Question 5

Golgi Apparatus

Answer 5

Location: Between nucleus and cell membrane

Function: modify, process, and package proteins/lipids

Question 6

Centrioles

Answer 6

Location: two rod-shaped bodies near the nucleus

Function: “spin” the mitotic spindle (cell division)

Question 7

Smooth Endoplasmic Reticulum

Answer 7

Membranes without ribosomes

Function: process molecules and send to Golgi apparatus

Question 8

Rough endoplasmic reticulum

Answer 8

Membranes studded with ribosomes

Function: proteins are made on the ribosomes and transporting

Question 9

Ribosomes

Answer 9

Location: attached to membranes or scattered in the cytoplasm

Function: synthesize proteins from RNA that comes from DNA

Question 10

Inclusions

Answer 10

• Folding of the cell membrane

Function: allows cells to take in substances

Question 11

Cilia

Answer 11

Location: hair-like projections from cell surface

Function: act in unison to move substances across cell surface in one direction

Question 12

Microtubules

Answer 12

Location: internal structure of centrioles; Part of the cytoskeleton

Function: Maintain cell shape and help in movement within cell

Question 13

Peroxisomes

Answer 13

Location: Throughout cell

Function: Breakdown specific toxins

Question 14

Filaments

Answer 14

Location: part of the cytoskeleton

Function: contractile protein (actin); moves cell or cell parts as microvilli