Stages of Mitosis (Only)

Question 1

Prophase

Answer 1

DNA exists as chromatin, 3 phases G1, G2, and G3
chromatin condenses into paired chromosomes. Spindle fibers form. Centrioles move to each pole. Nuclear membrane dissolves and nucleolus disappears.

Question 2

Metaphase

Answer 2

Centromere attached to spindle fibers and line up the chromosomes at the metaphase plate.

Question 3

Anaphase

Answer 3

Spindle fibers shorten and pull sister chromatids to opposite ends of the cell. Centromere splits. sister chromatids are seperated into two identical chromosomes.

Question 4

Telophase

Answer 4

Spindle fibers disappear. Chromosomes reach opposite ends of the cell. Nuclear membrane reappears around dna. Chromosomes relax/untangle back into chromatin.

Question 5

Cytokinesis

Answer 5

cytokinesis occurs after mitosis is completed.
Cell membrane pinches inwards.
Cytoplasm splits in half.
The cell splits into two gentically identical daughter cells.
Daughter cells return to interphase.

Question 6

Epithelial Tissue

Answer 6

Sheets of tightly packed cells, cover body surfaces and lines the body’s internal growth.
Prevents damage, heat loss, dehydration and infection
ex. Columnar epithelium, Squamous epithelium

Question 7

Muscular Tissue

Answer 7

Bundles of long cells- muscle fibers, capable of shortening and contracting.
Movement of the human body, posture, movement of substances inside the body, generation of body heat.
3 types: skeletal, cardiac, smooth.

Question 8

Connective tissue

Answer 8

various types of cells and fibers, cells are held together by a liquid, solid, or gel matrix.
Joins tissues together, supports and protects structures, Provides insulation
Ex. bone, tendons, cartilage, blood.

Question 9

Nervous Tissue

Answer 9

long, thin cells with branches. Conducts electrical impulses between the brain, spinal cord, and nerves in the body.
Communicates messages within the body to aid in survival. Coordination of body movements.

Question 10

Dermal tissue

Answer 10

Protective barrier against injury, disease, etc..form root hairs to absorb water, minerals

Question 11

Vascular

Answer 11

For water and nutrient delivery, think of blood vessels.
Xylem: transports water and dissolved minerals Phloem: transports a sugar solution.

Question 12

Ground tissue

Answer 12

Between the dermal and vascular tissues. Functions: photosynthesis in leaves, food and water storager, structural support.

Question 13

The shoot system

Answer 13

produce sugar through photosynthesis carry out reproduction.

Question 14

The flower

Answer 14

the primary function of the flower is reproduction. Some plants do not produce flowers and can reproduce by other means (budding, fragmentation, spores, propagation). The flower has male and female reproductive organs:
Stamen → male organ
Pistil → female organStamen consists of a long filament with an anther at the tip. The anther produces pollen (male sex cells)
Pistil consists of style, stigma, and ovary. The ovary produces eggs (female sex cells)
Pollen + Egg = Seed!
Seeds are covered in a variety of things such as hard shells or fleshy fruit.