A researcher is studying chromosomal disorders. What part of the human cell would the researcher be interested in studying?
A) Cytoplasm
B) Membrane
C) Nucleus
D) Organelles
C
Feedback:
The nucleus of a cell contains all of the genetic material that is necessary for cell reproduction. The nucleus also contains genes or sequences of deoxyribonucleic acid (DNA). Genes are responsible for the formation of messenger ribonucleic acid (mRNA) and transcription RNA, which are involved in production of proteins unique to the cells. This is the area where chromosomal disorders originate. The cell cytoplasm lies within the cell membrane and is the site of activities of cellular metabolism and special cellular functions. The organelles are contained within the cytoplasm and are structures with specific functions. They include the mitochondria, endoplasmic reticulum, free ribosomes, Golgi apparatus, and lysosomes. The membrane is a thin barrier, which separates the intracellular fluid from the extracellular fluid and is essential for cellular integrity; it also maintains cell homeostasis.
You might also like to view...
The assessment phase of the nursing process refers to the phase when data collection occurs. Which methods does the nurse use to collect data? (Select all that apply.)
a. Interpreting client behaviors b. Interviewing the client and significant others c. Observing client behavior d. Performing physical assessment e. Reviewing diagnostic testing results
A client with hypertension stops into the clinic for his weekly blood pressure measurement. He tells the nurse that he is in a hurry because he started a new job and has to get back to work
Evidence that this client is responding to the new job in a stressful way would be: 1. Elevated blood pressure. 2. Respirations 16 and regular. 3. Temperature within normal limits. 4. Heart rate 86 and regular.
A 35-year-old client who is unable to conceive is scheduled for a hysterosalpingogram to assess tubal patency. Which of the following would the nurse ensure before the client undergoes the hysterosalpingogram?
A) Client has been administered general anesthesia. B) Client is in the second phase of the menstrual cycle. C) Client's basal body temperature is recorded. D) Client has just completed her menses.
The nurse is assessing a 41-year-old African American male patient diagnosed with a pituitary tumor causing panhypopituitarism. Assessment findings consistent with panhypopituitarism include
a. high blood pressure. b. decreased facial hair. c. elevated blood glucose. d. tachycardia and cardiac palpitations.