A 12-STEP APPROACH TO STUDY FOR THE SCIENCE TEST 

SCIENCE REVIEW-Overview 

SCIENCE REVIEWThe topics that are generally covered in the test have been grouped into twelve instructional modules below. You will be tested only on the basic concepts of physics, chemistry and biology. Click on science topics and select any of the topics listed in the module to review.

Lesson 1:	Basic structure of atom Cell structure and function Functions of cell organelles Types of tissues
Lesson 2:	Movement of substances across the cell membrane Acids and bases, pH scale Carbohydrates, proteins, lipids and nucleic acids
Lesson 3:	Basic structure of the eye Basic structure of the ear Nervous system
Lesson 4:	Circulatory system Introduction to mechanics (motion/forces) Electrical circuits
Lesson 5:	Balancing chemical equations and writing formulas Essentials of photosynthesis and respiration Classifying organic compounds Magnetism Electromagnetism
Lesson 6:	Interpretation of graphs and pictograms Analyzing and making conclusions from experiments Data analysis
Lesson 7:	Endocrine system Digestive system Genitourinary system
Lesson 8:	Reproduction in mammals Basic parts of a flower Reproduction in plants (the process of pollination Genetics
Lesson 9:	Modes of heat transfer Calculating heat energies and phase diagrams Temperature conversions (Kelvin, Celsius, Fahrenheit)
Lesson 10:	Gas laws (Boyle, Charles, Gay-Lussac) Types of energy (Potential, kinetic, etc…..) Chemical bonds, equilibrium and equilibrium constants Mixtures, types of solutions, solubility
Lesson 11:	Concepts of the food pyramid, food web and food chain Light (diffraction, refraction, reflection, dispersion) Basic concepts on waves Sound waves Catalyst and enzymes
Lesson 12:	Symbiosis Ecology The Electroscope Radioactivity and half-life Tropism Tropism

CELL STRUCTURE AND FUNCTION

Functions of some cell organelle:

1.      Nucleus: Control center of the cell. Contains DNA which directs the synthesis of  

      proteins by the cell.

2.      Mitochondria: Carries on the process of cell respiration by converting glucose to 

      ATP energy.

3.  Ribosome: Found on the endoplasmic reticulum and free within the cell. 

Responsible for the synthesis of proteins for the cell.

4.  Endoplasmic reticulum: Transport channels within the cell.

5.  Food vacuole: stores and digests food.

6.  Lysosomes: Contain digestive enzymes. Breaks down substances in the cell.

7. Contractile vacuoles: Pumps out wastes and excess water from the cell.

8.  Cell membrane: Selectively regulates the materials moving to and from the cell.

 9.  Chloroplast: Found only in plant cells and algae. Contains chlorophyll (the green   

     coloring substance in plants) which carries on the process of photosynthesis.

10. Cell wall: Surrounds and supports plant cells. Only in plants. The cell wall is formed  

     from the cell plate during cell division.

EXAM TIPS:

• If you see centriole and centrosome in a question, think of an animal cell. They occur only in animal cells and they are involved in cell division where they produce spindles.
•  If you see cell plate and chloroplasts in a question, think of a plant cell. They occur only in plant cells.

TEST YOUR KNOWLEDGE

1. A student was looking at a cell under the microscope and noticed that centrosomes were present. Which   type of cell was the person looking at?
       A. Bean cell
       B. Carrot cell
       C. Cat cell
       D. Cabbage cell

2. A certain drug inhibited the production of adenosine triphosphate (ATP). This drug acted on which of the  following organelle?
       A. Endoplasmic reticulum
       B. Nucleus
       C. Mitochondrium
       D. Ribosmes

3. A student was looking at a cell under the microscope and noticed that chloroplasts were present. Which  type of cell was the person looking at?
       A. Dog cell
       B. Mouse cell
       C. Cat cell
       D. Cabbage cell

4. Nucleus is to DNA as chloroplast is to _________________ .
       A. RNA
       B. Plant
       C. ATP
       D. Chlorophyll

5. The genetic blueprint of life can be found in which of the following structure?
       A. Endoplasmic reticulum
       B. Nucleus
       C. Mitochondrium
       D. Ribosmes

6. Which of the following is not involved in protein synthesis?
      A. Endoplasmic reticulum
       B. Nucleus
       C. Mitochondrium

       D. Ribosmes

Answers: 
1. C. Cat cell (Centrosomes occur only in animal cells)
2. C. Mitochondrium (Mitochondrium is involved in ATP production so inhibiting it will lead to decreased production)
3. D. Cabbage cell (Chloroplast is found only in plant cells)
4.  D. Chlorophyll
5. B. Nucleus (Nucleus contains the DNA, the genetic blueprint of life)

6. C. Mitochondrium

MATHEMATICS REVIEW

Here is a link to practice on percentage problems. This practice question can be timed by you.

http://www.thatquiz.org/tq-3/?-j180-l1-p0

WELCOME TO THE TEAS BLOG

Welcome to my TEAS Exam Prep blog. I hope it will help you prepare very well for the pre-nursing entrance exam, popularly known as the TEAS exam. This is one of the entrance exams required by some schools for those who want to pursue careers in the nursing field in the USA. I will attempt to break down the review materials into manageable parts so that you can systematically and efficiently prepare for the test with less stress. I will guide you to prepare for the entire content of the test. Hopefully, you will be able to pass after going through this series.
Best of luck!