Introduction to Physiology Questions and Answers

What is the benefit to anucleate RBCS? What is the benefit of WBCs retaining all organelles?

Fill in the blank: The ______ is the site for the generation of the formed elements of blood.

Across world cultures, there is remarkable consistency in what people find sexually arousing. True False

Fill in the blank: ____ arise from megakaryocytes, which reside in the bone marrow.

If there is cell damage reported by endothelium cells, which formed element increases their activity?

Orgasm is the shortest phase of the sexual response cycle. True False

Which portion of blood is measured to determine the hemocrit?

In which portion of the blood would you look for antibodies?

Acid-fast staining was performed on a sputum sample from a patient exhibiting clinical signs of Tuberculosis, red cells were observed on the slide. What can be determined from this slide? A. The sample contained non-acid-fast cells, suggestive of members of the genus Mycobacterium B. The sample contained endospore forming bacteria C. The sample contained bacteria with mycolic acid in their cell walls, suggestive of members of the genus Mycobacterium

Transcription occurs in the nucleus or at the nucleoid. True False

During the Gram stain, gram-______ cells decolorize when the alcohol is applied. positive negative Both positive and negative are correct. Neither positive nor negative are correct.

The deliberate removal of genetic material from one organism and combining it with the genetic material of another organism is a specific technique called Genetic engineering Biotechnology Recombinant DNA Gel electrophoresis Gene probes

Ali performed gram staining procedure on a number of cultures that ALL turned out to be purple. Which one of the following is NOT one of the cultures that he looked at? Staphylococcus aureus Staphylococcus epidermidis Serratia marcesens Micrococcus lutea

Each of the following are features of a cloning host except Quick generation time Minimal growth requirements Mapped genome Pathogenic Transformable

Which of the following stains is not a differential stain? simple stain gram stain acid fast stain endospore stain none of these

Where is the dirt? A micro student looking through his microscope observed a small, spherical object. The student felt something must be wrong since he was looking at a slide of Spirogyra. His lab partner suggested maybe it was dirt? He rotated his ocular lens to see if the speck would rotate. It did not rotate. What should he check next? A. adjust the diaphragm B. adjust the condenser C. clean the objective lens D. clean the ocular lens

The use of any chemical in the treatment, relief or prophylaxis of a disease is called Prophylaxis Chemotherapy Selective toxicity Nephrotoxicity Synergism

Which drug is used to treat cases of tuberculosis? Penicillin G Vancomycin Tetracycline Synercid Isoniazid

The purpose of intervertebral disks are to: 1) allow slight movement of the vertebral column 2) cushion each vertebrae especially when bungee jumping 3) prevent erosion of each disk since they rub on each other 4) all of the above

A polarized neuron means: 1) the neuron is not conducting an electrical impulse 2) sodium ions are rushing into the cells (influx of positive sodium) 3)potassium ions are quickly leaving the cell (efflux of positive potassium)

An antimicrobial with a low therapeutic index is a safer choice compared to a drug with a high therapeutic index. True False

{Nucleoside analogs,Intercalating agents} usually lead to frameshift mutations.

The iodized salt is always available in the supermarkets. However, it is trendy to consume various fancy salts including pink salt from Himalaya - do you think this is a good idea? Discuss and write down shortly.

Test: compare the morphology of giant pandas to other mammals of similar size - how do you do it?

To confirm their findings, scientists often address a hypothesis from multiple angles. The hypothesis is strengthened when the data from different approaches agree. In this case, the data on the pelage and on organ size:

Genomic analysis in the giant panda show that there is a mutation in a gene required for the synthesis of T3 and T4. Thinking about how feedback control works, what might you predict for the levels of TSH in giant pandas?

Test: compare the surface temperature of giant pandas to other mammals of similar size-how do you do it?

In many communities throughout the world, LTSS typically are provided only__ _______, by family members, friends, neighbors, or volunteers. formally informally in nursing homes in assisted living facilities

__ countries all have a long-term benefit covering both in-home and institutional services for their older populations. Their LTSS systems typically include a supportive service option linked to housing and self-directed and cash options for recipients. Group 4 Group 3 Group 1 Group 2

What are some reasons why informal work might be disadvantageous for older adults? Select all that are true. Early mortality Fewer opportunities for growth. Poorer social protections (lack of pensions). Wellness programs

With regard to the protection of workers, a way for individual nations and the global community to improve informal work for older adults is to tax informal employers. Why? There is no known reason for informal employers to be taxed. It improves record keeping and provides a source of funds for workers' benefits. To allow individual nations and communities to get to know the names of their workers. For researchers to verify the average age of older adult workers.

Work has diverse meanings for different people. Which of the following is not used to describe the different meaning of work? Work is a way for people to get used to using different types of technology. Work is important in determining standing within a community and providing a source of identity. Work is necessary for existence by providing funds for basic needs. Work is a primary source of human interaction.

A key characteristic of a__ welfare state lacks strong public support for older people and family is largely responsible for caring for them. Examples of countries that have this welfare state are New Zealand, Canada, and the United States. Conservative Social Democratic Liberal Postsocialist

A woman has her first child at 38, and her daughter repeats this pattern. The woman will be 73 years old when her first grandchild is born. If her grandchild repeats the pattern, the woman would have to live to 108 in order to meet her first great-grandchild. What type of family structure would result? Age-gapped family structure Age-condensed family structure Vertical family structure Beanpole family structure

The__ model identifies six key dimensions of the relationships between parents and their children and between grandparents and their adult children. Ambivalence Bismarck Intergenerational solidarity Beveridge

What differs between lymphatic capillaries and blood capillaries?

In a clinical setting, what is the diagnostic purpose of palpating along the jawline and neck area?

Oxytocin is a hormone released in response to cervical dilation. This causes more uterine contractions that will further dilate the cervix. Which type of feedback does oxytocin trigger? local control negative feedback nociceptive feedback positive feedback

In the absence of oxygen, the concentration of which of the following will increase? lactate FADH2 NADH ADP All answers are correct.

Glucose is the only fuel source for some tissues including skin, red blood cells and parts of brain. When the glycogen resources in liver are exhausted, additional glucose molecules can be produced by liver in the process of gluconeogenesis from all answers are correct amino acids from proteins pyruvate, produced from lactate A and C glycerol from triglycerides

The term used to describe the minimum stimulus to trigger a response in a feedback loop is treppe affector threshold effector

Plasma osmolality is measured in mOsm/L and is normally 300 mOsm/L. If a patient is given an intravenous solution that is 0.9% NaCl (300 mOsm/L NaCl), his or her red blood cells will swell lyse shrink not change size or shape. first shrink, then swell

DNA acts as a molecule whose solo function is to store cell's genetic information. DNA exists in a nucleus as a DNA-protein complex known as chromatin. Where is transcription taking place? both nucleus and cytoplasm nucleolus cytoplasm nucleus

During the oxidation of glucose, which of the following reactions ultimately produces the greatest number of ATP molecules? Glycolysis Oxidative phosphorylation Krebs cycle pyruvate dehydrogenase reaction

Cyanide is a poison that prevents oxygen from accepting electrons from the electron transport chain. If cyanide were added to cells, which of the following would cease? Glycolysis Oxidative phosphorylation Krebs cycle pyruvate dehydrogenase reaction Oxidative phosphorylation and the Krebs cycle

If a membrane is impermeable to solutes, which of the following is true? Osmosis will not occur. Water will move toward the more concentrated solutes. Water will move away from the concentrated solutes. Water and solutes will move until equilibrium is reached.