Organelle Definitions & Cell Theory

Question 1

Cell Theory

Answer 1

• All living things are composed of cells
  -Cells only arise from pre-existing cells
  -Cells are the smallest unit of life

Question 2

Cytoplasm

Answer 2

Its a medium for chemical reactions and for other organelles to work within

also surrounds other organelles of the cells

Question 3

Nucleus

Answer 3

Contains most of the cells genetic material (DNA), which regulates the activities of the cell.

Question 4

Ribosomes

Answer 4

creation of proteins

Question 5

Nucleolus

Answer 5

Creation of ribosomal RNA. Assembly of ribosomal subunits.

Question 6

Smooth ER

Answer 6

Makes lipids, transports lipids through cell

Question 7

Rough ER

Answer 7

Making, folding, and modifications of proteins, transport of proteins through the cell.

Question 8

Lysosomes

Answer 8

Intracellular digestion of macromolecules, breaks down old organelles and debris.

Question 9

Golgi body

Answer 9

modification, packaging and transport of proteins and lipids through the cell in vesicles

Question 10

Vacuoles

Answer 10

vesticles transport materials through cell, storage for food, waste and water

Question 11

Mitochondria

Answer 11

the site of cellular respiration, makes energy

Question 12

Chloroplast

Answer 12

the site of photosynthesis, using sun to create glucose.

Question 13

Cytoskeleton

Answer 13

maintains the cell shape and internal organisation

Question 14

centrioles

Answer 14

split the cell and DNA during cell division, organize microtube and determine location of other organelles

Question 15

Cell Membrane

Answer 15

Creates a barrier around cell, controls what enters and exits

Question 16

cell wall

Answer 16

protects the cell shape prevents excessive water uptake