Lab 3 - Cell Anatomy

Question 1

Nucleus

Answer 1

Cell control center

Question 2

Ribosomes

Answer 2

Sites of protein synthesis
Usually attached to rough ER
Made of RNA and protein

Question 3

Endoplasmic reticulum

Answer 3

Rough: storage and transport of proteins synthesized by ribosomes

Smooth: site of steroid and lipid synthesis

Question 4

Lysosomes

Answer 4

Sacs containing digestive enzymes

Digest foreign objects and old organelles

Question 5

Golgi Apparatus

Answer 5

Packages proteins for export from the cell or incorporation into membrane
Also makes lysosomes

Question 6

Mitochondria

Answer 6

Double membrane

Makes food into ATP

Question 7

Centrioles

Answer 7

Move chromosomes during mitosis

Paired at right angles

Question 8

Steps of Mitosis

Answer 8

Prophase: chromosomes condense, centrioles spread and attach to chromosomes

Metaphase: chromosomes line up in the middle of the cell

Anaphase: sister chromatids pull apart to separate sides

Telophase: nucleus reforms, cell splits into two

Question 9

Steps of Meiosis

Answer 9

Meiosis I
Interkinesis
Meiosis II

Question 10

Meiosis I

Answer 10

Prophase I: chromosomes shorten and condense
Metaphase I: pairs come together, cross over, line up in the middle
Anaphase I: separate into homologous pairs
Telophase I; divide into 2 cells

Question 11

Meiosis II

Answer 11

Basically mitosis

Question 12

Nuclieoli

Answer 12

Dense mass in nucleus where ribosomes are made