nuc (center)–nuclus,nucleate
nuclide

2. Which statement best describes how the nervous system helps a person react quickly after stepping on something sharp?
a. Electrical impulses are created by the muscles to move the foot away.
b. Each skin cell has pain receptors that directly cause muscle movement in the foot.
c. The muscles conduct pain impulses to the brain, which directs nerves to pull the foot back.
d. Signals travel on the nerves to the spinal cord, which causes a reflex that pulls the foot away.
3. Which organ is not functioning properly if an individual is unable to compact waste or reabsorb liquid from undigested food?
a. stomach
b. esophagus
c. small intestine
d. large intestine
4. As blood flows to the heart from the toes and fingers, it travels mainly through tissue called
a. veins
b.alveoli
c.arteries
d.capillaries
5. Somtimes when people eat, the food accidently enters a tube near the beginning of the respiratory system instead of the digestive system. This causes a person to cough. In which part of the respiratory system can food sometimes get stuck and casue difficulty in breathing?
a. lung
b. alveoli
c.trachea
d. diapghragm

1. What organelle is responsible for producing food for plants?
a. vacuole
b. cell wall
c. nucleus
d. chloroplast

2. What organelle stores food for the plant?
a. vacuole
b. cell wall
c. nucleus
d. chloroplast

3. Which statement describes how a plant cell’s functions would change in the absence of a vacuole?
a. The cell would not be able to produce proteins.
b. The cell would lack energy to destroy foreign objects.
c. Fluid and wastes would not be stored within the cell.
d. Materials would not be transported between the nucleus and cell membranes.

4. A scientist wanted to study a cell which lacked the structure that contains the materials needed to control cell’s activities. Which structure would need to be missing from the cell for this study to take place?
a. nucleus
b. vacuole
c. lysosome
d. mitochondrion
5. All cells have the which organelle?
a. nuclues
b. ribosomes
c. cell wall
d. chloroplast

strata, stratified, substratum

Calor (heat)  calorie, calorimeter, calorific, caloric

1.When on a windy day, most plants can remain upright. Which structure plays the greatest role in providing a plant with this type of support.
a. nucleus
b. mitochondria
c. cell wall
d. skeleton

2. Which statement correctly identifies a function of a chloroplast ub eukaryotic cells?
a. it contains cellulose, which helps a plant conduct respiration.
b. it contains cellulose, which helps an animal conduct respiration.
c. It contains a green pigment, which helps a plant capture energy from the sunlight.
d. It contains a green pigment, which helps an animal capture enrgy from the sunlight.

3. What is the function of the cell wall?
A. it helps the cell maintain shape
B. provide nergy for the cell
C. storing the cell’s food, water, and waste
4. A scientist examines a structure within a cell that contains a large number of genetic material. Which statement best identifies this structure’s function?
a. it contains cellualr activities
b. it stores food, water, and wastes
c. it gives the cell shape and structure
d. it uses light energy to make sugars
5.What organelle produces food for plants?
a. vacuole
b.mitochondria
c.chloroplast
d. ribosomes

Please submit your answers before 10:00 on Sunday night. Your two grades will be averaged. Do not cut and copy answers from the internet–I will know!

1. Define Mitosis.
2. What is the resting phase of the cell cycle called? Explain why this stage is really not resting.
3. List the stages of Mitosis and explain in detail what occurs in each stage.
4. How many chromosomes are in human body cells? How many chromosomes are there in the beginning in Prophase? How many chromosomes will be in the two daughter cells once the cells divide?
5. Explain the process of cytokinesis.
6. What is the purpose of spindle fibers? Where are they attached to the chromosome?
7. What is the purpose of the centromere?
8. What is found on the chromosomes or chromatids?
9. What is the difference between a cleavage furrow and a cell plate?
10. What is the disease called when cells overly reproduce? What are some treatments for this disease?

Atmo—Atmosphere, atmometer, atmospheric

cranio (skull) craniology, intracranial. craniotomy, cranium, dolichichranic