Organelles create compartments for specialized functions

Question 1

887Mitchondria structure and function

Answer 1

Structure- mitochondrial matrix, DNA, and intermediate space

Question 2

Essential role in cellular ATP production

Answer 2

mitochondria

Question 3

Two types of ER and functions

Answer 3

Rough ER- synthesis of proteins
smooth ER- synthesis of fatty acids, steroids lipids (ex. testosterone, estrogen, storage=calcium)

Question 4

Sorts, modifies and packages proteins into vesicles

Answer 4

The Golgi apparatus or Golgi com

Question 5

Two types of vesicles

Answer 5

storage vs. secretory vesicles
lysosomes, and peroxisomes

Question 6

Compare and contrast lysosomes and peroxisomes.

Answer 6

Both are vesicles
Lysosomes –break down bacteria and old organelles

Peroxisomes –break down fatty acids and toxic materials

Question 7

Store things that will be moved from the cell

Answer 7

vesicles

Question 8

Have membranous sheets. Package materials for secretions.

Answer 8

Golgi apparatus and vesicles

Question 9

Contain enzymes that break down fatty acids and some foreign materials

Answer 9

peroxisomes

Question 10

small, spherical storage vesicles that contain powerful digestive enzymes

Answer 10

Lysosomes

Question 11

Made from microtubules and direct DNA movement during cell division

Answer 11

centrioles

Question 12

The nucleus is covered by and contains these important structures

Answer 12

covered by nuclear envelope:two membranes with pore
Nuclear pore complexes: transport occurs here
* Chromatin: DNA and associated proteins- chromatin found in non dividing cells and can be used by the cell. chromosomes are found in cells dividing(non-compact state;)

• Nucleoli (nucleolus) – Control synthesis of ribosomal RNA

Question 13

Contents of nucleus

Answer 13

chromatin, chromosome

Question 14

loosely coiled DNA (cells not dividing)

Answer 14

chromatin

Question 15

Tightly coiled DNA (cells dividing)

Answer 15

chromosomes