Identify the location where neurotransmitters are stored immediately prior to use.                                              

A. Area A

B. Area B

C. Area C

D. Area D

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Answer Explanation:

Area B is a synaptic vesicle where the neurotransmitters are stored just before use.

                                                                    

Therefore, the Correct Answer is B.

More Questions on TEAS 7 Science Practice Test 1

Question 1:

Which of the heart chambers is the largest?

A. Left atrium

B. Right atrium

C. Left ventricle

D. Right ventricle

The Correct Answer is C.

Of the four heart chambers, the left ventricle is the largest. When it contracts, it pushes blood out to the organs and extremities of the body. The right ventricle pushes blood into the lungs. The atria, on the other hand, receive blood from the outlying parts of the body and transport it into the ventricles.

The basic process works as follows: Oxygen-poor blood fills the right atrium and is pumped into the right ventricle. from which it is pumped into the pulmonary artery and on to the lungs. In the lungs, this blood is oxygenated. The blood then reenters the heart at the left atrium, which, when full, pumps into the left ventricle. When the left ventricle is full, blood is pushed into the aorta and on to the organs and extremities of the body.


Question 2:

Which of the following is a carbohydrate?

A. Cellulose

B. Hemoglobin

C. Estrogen

D. ATP

The Correct Answer is A.

Cellulose is a complex carbohydrate that composes the better part of the cell wall.

Hemoglobin is a protein and is found in red blood cells. Adenosine triphosphate (ATP) is a compound used by living organisms to store and use energy. Estrogen is a steroid hormone that stimulates the development of female sex characteristics.


Question 3:

What is most likely the pH of a solution containing many hydroxide ions (OH-) and few hydrogen ions(H+)

A. 2

B. 6

C. 7

D. 9

The Correct Answer is D.

A solution that contains more hydroxide ions than hydrogen ions is a base, and bases have a pH greater than 7, so the only possible answer is choice D. 9.


Question 4:

Which of the following is true regarding adipocytes?

A. They are involved in the secretion of glucose.

B. They are responsible for storing the fat that is found in adipose tissue

C. They are critical in the digestive breakdown of fat

D. They are the foundational element of muscles

The Correct Answer is B.

Adipocytes are primarily seen in adipose or fat tissue. Their primary function is the storage of fat Adipocytes play a crucial role in maintaining proper energy balance, storing calories in the form of lipids, and mobilizing energy sources in response to stress. They are not involved in the digestion of fat or the secretion of glucose, nor are they the foundational element of muscles


Question 5:

Which section of the digestive system is responsible for receiving chyme and further digesting it?

A. The large intestine

B. The duodenum

C. The jejunum

D. The gallbladder

The Correct Answer is B.

The duodenum is the first section of the small intestine. It receives partially digested food (also called chyme) from the stomach, further digesting it with the help of enzymes released by the gall bladder. Then, the food enters into the jejunum, then the ileum. The large Intestine's main function is the reabsorption of water into the body to form solid waste. It also allows for the absorption of vitamin K produced by microbes living inside the large intestine.


Question 6:

Identify the location where neurotransmitters are stored immediately prior to use.                                              

A. Area A

B. Area B

C. Area C

D. Area D

The Correct Answer is B.

Area B is a synaptic vesicle where the neurotransmitters are stored just before use.

                                                                    


Question 7:

Which of the following anatomical structures is directly involved in the production of hormones?

A. Pituitary ,Pancreas

B. Penis,Pons

C. Pancreas ,Penis

D. Prostate, Pancreas

The Correct Answer is A.

The pituitary and the pancreas are both structures of the endocrine system that produce hormones involved in body regulation, growth reaand development, sexual functioning, and other processes. The penis Is a structure of the reproductive system that responds to hormones, but it does not produce them. The prostate plays a role in converting testosterone (produced in the testicles) into dihydrotestosterone, but does not actively produce hormones. The pons is located in the brain stem and relays nerve signals that coordinate messages between the brain and the body. The pericardium is a structural component of the cardiovascular system.


Question 8:

Which of the following orbitals is the last to fill?

A. 1s

B. 3s

C. 4p

D. 6s

The Correct Answer is D.

Of these orbitals, the last to fill is 6s.

Orbitals fill in the following order: 1s, 25, 2p. 35, 3p, 4s, 3d, 4p, 55, 4d, 5p. 6s, 4f, 5d, 6p. 7s, 5f, 6d, and 7p. The number is the orbital number, and the letter is the sublevel identification. Sublevels has one orbital and can hold a maximum of two electrons. Sublevel p has three orbitals and can hold a maximum of six electrons. Sublevel d has five orbitals and can hold a maximum of 10 electrons, Sublevel f has seven orbitals and can hold a maximum of 14 electrons.


Question 9:

Every child in a certain family has been diagnosed with autism spectrum disorder (ASD). Based on this evidence, what possible conclusion can be drawn about ASD?

A. ASD may be lethal.

B. ASD may be genetic.

C. ASD is related to traditional nuclear family structures,

D. No conclusion can be drawn based on this evidence.

The Correct Answer is B.

The evidence says that every child in a certain family has been diagnosed with autism spectrum disorder (ASD). All of these children have genetic commonalities. Therefore, ASD may be genetic.

The evidence does not mention whether the children died from ASD. Therefore, no conclusion can be drawn that ASD may be lethal. Furthermore, the sample size of the evidence is much too small to suggest that ASD is related to traditional nuclear family structures.


Question 10:

Which of these does NOT match the nitrogenous base to the nucleobase?

A. Purine: Adenine

B. Purine: Thymine

C. Pyrimidine: Uracil

D. Pyrimidine: Cytosine

The Correct Answer is B.

There are two types of nitrogenous bases: purine and pyrimidine bases. Purine bases have two rings in their structure and consist of adenine and guanine. Pyrimidine bases only have one ring in their structure and consist of thymine and cytosine (DNA) and uracil and cytosine (RNA). Therefore, the correct answer is B since thymine is a pyrimidine.