Which of the following cells transfers pigment granules to adjacent epidermal cells?
A. Melanocytes
B. Merkel cells
C. Langerhans cells
D. Keratinocytes
For those aiming to excel in their ATI TEAS test and secure admission into their desired nursing program, ExamGates offers an invaluable resource. Our platform features practice questions meticulously crafted by tutors who have previously aced the exam themselves. With ExamGates, you can access content that is 100% relevant to the test, accompanied by vivid images and illustrations. Additionally, our platform provides comprehensive explanations for both correct and incorrect answers, empowering you to fully grasp the material and optimize your study efforts. Take the first step towards your nursing aspirations with ExamGates today.
Melanocytes are specialized skin cells that produce melanin, which is the protective skin-darkening pigment. They are found mainly in the epidermis, though they occur elsewhere, such as in the hair.
Therefore, the Correct Answer is A.
More Questions on TEAS 7 Science Exam 5
Question 1:
Which of the following endocrine organs in the diagram below is involved in regulating milk production following childbirth?
A. Pituitary gland
B. Thyroid gland
C. Adrenal glands
D. Ovaries
The Correct Answer is A.The pituitary gland produces prolactin, which regulates milk production
Question 2:
in pea plants, green pod color (6) is dominant to yellow pod color ( A cross was done between a plant with green pods and a plant with yellow pods. Of the resulting offspring 50% had green pods and 50% had yellow pods. Which of the following were the genotypes of both parent plants?
A. Ggx Gg
B. GG x gg
C. Gg x gg
D. gg x gg
The Correct Answer is C.
|
|
G |
g |
|
g |
Gg |
gg |
|
g |
Gg |
gg |
Question 3:
A strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?
A. 3' STOGUTCGCU
B. 5' AGCTAGCGT S
C. 3' SUCGAUCICA
D. 3' TCGATCGCA 5'
The Correct Answer is D.The complementary strand of DNA is formed by pairing complementary bases. In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). Additionally, RNA uses uracil (U) instead of thymine.
Given the sequence 5' AGCTAGCGT 3', the complementary strand would read:
3' TCGATCGCA 5'
Question 4:
A study found two processes. Process A and Process B, are to be correlated.
Which of the following is true for these processes?
A. The study indicates that Process A causes Process B
B. The study cannot indicate whether Process A and B have a negative relationship
C. The study does not indicate a causal relationship between the processes.
D. The study cannot indicate whether Process A and B have a positive relationship
The Correct Answer is C.Correlation does not imply causation. Even if two processes are found to be correlated, it does not necessarily mean that one causes the other. It could be that they are both influenced by a third factor, or the correlation could be coincidental. Therefore, the study does not indicate a causal relationship between the processes.
Question 5:
Which of the following would result in an increase in the chemical reaction?
A. Adding more of the product
B. Decreasing the concentration of the reactant
C. Sealing the reaction in an airtight container
D. Using a mortar and pestle to grind a solid reactant to a powder
The Correct Answer is D.Crushing a solid reactant into powder increases the surface area of the reactant, thereby increasing chemical reaction. This is because more of the reacting molecules or ions are exposed to the other reactant, which increases the chance of particles colliding and leads to more successful collisions per second.
Question 6:
Which structure of the female reproductive system is the source of the blood and mucosal tissue during menstruation? (You will find hot spots to
Select in the image below. Select only the hot spot that corresponds to your answer.
A.
B.
C.
D.
The Correct Answer is B.The inner lining of the uterus is the source of blood and mucosal tissue that is shed during menstruation.
Question 7:
Which of the following is the term given to the sequence of nucleotides that contains the information to make a specific protein molecule?
A. Locus
B. Promoter
C. Operator
D. Gene
The Correct Answer is D.A gene is a segment of DNA that codes for a specific protein or polypeptide.
Question 8:
Which of the following correctly orders structures from simple to complex?
A. Organs, tissues, cells, atoms
B. Cell, tissues, atoms, organs
C. Atoms, organs, tissues, cells
D. Atoms, cells, tissues, organs
The Correct Answer is D.Rationale
Atoms are the smallest and most basic units of matter, and they can combine to form molecules. Cells are the basic units of life, and they are made of molecules. Tissues are groups of cells that work together to perform a specific function, such as muscle tissue or nerve tissue. Organs are collections of tissues that form a larger structure.
Question 9:
Which of the following atoms is most likely to become a cation?
A. Oxygen, atomic number 8
B. Fluorine, atomic number 19
C. Helium, atomic number 2
D. Fluorine, atomic number 9
The Correct Answer is D.Fluorine has a high electronegativity, and therefore, it has a strong attraction for electrons and tends to gain electrons to form anions. Therefore, it is more likely to become a cation by losing an electron.
Question 10:
The vermiform appendix extends from the region of the large intestine known as which of the following?
A. jejunum
B. Rectum
C. Cecum
D. Achi
The Correct Answer is C.The vermiform appendix is a small, finger-like projection that extends from the cecum, which is the first part of the large intestine.