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40. Electrons A. comprise the majority of the mass of an atom B. are located in

ID: 271749 • Letter: 4

Question

40. Electrons A. comprise the majority of the mass of an atom B. are located in the nucleus of an atom C. have a positive charge of one. D. are the subatomic particles most involved in bonding behavior of atoms. E. do not participate in the bonding of atoms. 41. The epidermis of the skin is composed of A. stratified cuboidal epithelium. B. simple squamous epithelium. C. stratified squamous epithelium. D. irregular dense fibrous connective tissue. E. stratified columnar epithelium. 42. A buffer will A. enhance changes in the pH of the solutions. B. resist drastic changes in the pH of the solutions C. have no effect on the pH of the solutions. D. make a solution more acidic. E. make a solution more basic. 43. A general characteristic of connective tissue is that it A. consists of cells with much intercellular material (matrix) between them. B. has no blood supply to the tissue C. covers the outside of organs. D. is commonly found lining body cavities. E. contracts. 44. The energy stored in ATP is a form of A. mechanical B. chemical C. kinetic D. heat E. electrical energy.

Explanation / Answer

40. Electrons

ANSWER IS:

D. are the subatomic particles most involved in bonding behavior of atoms.

EXPLANATION:

Electrons are subatomic, negative charge particles that orbit the nucleus of an atom. They are important for the bonding of individual atoms together.

41. The epidermis of the skin is composed of

ANSWER IS:

C. stratified squamous epithelium.

EXPLANATION:

The epidermis consists of stratified squamous epithelium.

The dermis consists of connective tissue (areolar, dense irregular, blood), smooth muscle (erector pili muscles), nervous tissue (nerves)


42. A buffer will

ANSWER IS:

B. resist drastic changes in the pH of the solutions

EXPLANATION:

A buffer is a solution of weak acid and conjugate base or weak base and conjugate acid which is used to resist drastic changes in the pH of the solutions.

43. A general characteristic of connective tissue is that it

ANSWER IS:

A. consists of cells with much intercellular material (matrix) between them.

EXPLANATION:

Connective tissue is the most abundant and widely distributed and includes fibrous tissues, fat, cartilage, bone, bone marrow, and blood.

44. The energy stored in ATP is a form of

ANSWER IS:

B. chemical

EXPLANATION :

The ATP molecule store energy in the form of a high energy phosphate bond that join the terminal phosphate group to the rest of the molecule. Energy released for biochemical reactions.

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