TEAS-SECTION-2 Online Practice Questions and Answers

What is the role of ribosomes?

A. waste removal

B. storage

C. transport

D. make proteins

Which of the following is exchanged between two or more atoms that undergo ionic bonding?

A. electrical charges

B. valence electrons

C. transitory electrons

D. neutrons

Which of these statements regarding facilitated diffusion across a cell membrane is true?

A. It is a kind of active transport (i.e., does directly use energy such as hydrolysis of ATP) that requires protein pumps.

B. It is a kind of passive transport (i.e., does not directly use energy such as hydrolysis of ATP) that does not require transmembrane/carrier proteins.

C. It is a kind of passive transport (i.e., does not directly use energy such as hydrolysis of ATP) that requires transmembrane/carrier proteins.

D. It is a kind of active transport (i.e., does directly use energy such as hydrolysis of ATP) that requires transmembrane/carrier proteins.

Which of these statements regarding the gastrointestinal tract is false?

A. Villi present in the large intestine absorb water and mineral salts.

B. The ileum absorbs B12 and bile salts.

C. The large intestine secretes no enzymes.

D. Villi contain lacteals for the absorption of fats.

What is the life span and breakdown product of red blood cells?

A. 2 months, biliverdin

B. 4 months, bilirubin.

C. 1 year, oxyhemoglobin

D. 6 months, ammonia

Maturation and development of T cells takes place in which region?

A. spleen

B. bone marrow

C. lymph nodes

D. thymus gland

Simple covalent compounds show which of the following properties?

A. They are soluble in organic solvents e.g. ethanol.

B. They conduct electricity when molten or dissolved in water.

C. They are crystalline solids at room temperature.

D. They have high melting and boiling points.

Balance the following chemical equation by filling in the coefficients that should go in the blanks:

____Na +____H2O ____NaOH + H2

A. 2Na + 2H2O 4NaOH + H2

B. 2Na + H2O 3NaOH + H2

C. 3Na + 3H2O 3NaOH + H2

D. 2Na + 2H2O 2NaOH + H2

The attached diagram shows four varieties of one type of tissue.

Name the type of tissue and the four varieties.

A. connective: adipose, blood, areolar, and bone

B. epithelial: transitional, stratified, columnar, and cuboidal

C. nervous: grey matter, white matter, dendritic, and ganglion

D. connective: adipose, cardiac, transitional, and bone

Gregor Mendel used pea plants to conduct experiments on genetics and heredity. He grew approximately 29,000 plants to study seven characteristics: flower color, seed texture, seed color, stem length, pod color, pod texture, and flower position. Mendel was able to demonstrate that these characteristics were passed from one generation to the next and that the offspring could inherit the characteristics from either one, or from both, of the parent plants.

Referring to the passage, tell why it was important that Gregor Mendel used a large number of plants in his experiments into genetics and heredity?

A. Pea plants are susceptible to disease, so he needed a lot of them to make sure enough would survive to adulthood to allow him to draw his conclusions.

B. With a large number of plants, he could demonstrate that the results didn't just happen by chance.

C. It wasn't important at all ?pea plants produce lots of seeds, so he planted them all to see what would happen.

D. Plants don't have as many genes as animals, so he needed more of them to study genetics properly.