Biology Mock Exam 1
14 Questions
0 Views

Biology Mock Exam 1

Created by
@EntrancingSugilite1576

Questions and Answers

If a mother’s genotype is homozygous recessive and the father is heterozygous and has the illness, which of the following represents the chance that their child will have PKD?

  • 25%
  • 100%
  • 0%
  • 50% (correct)
  • A woman drinks an excessive amount of alcohol during her pregnancy. Which of the following teratogenic disorders will the baby be at risk for?

  • Fetal alcohol syndrome (correct)
  • Sickle cell anemia
  • Thalidomide babies
  • Trisomy 21
  • How does ADH play a role in a fluid volume deficit?

  • ADH is secreted from the pituitary gland and acts as a compensatory mechanism by excreting excess fluid.
  • ADH is secreted from the adrenal gland and acts as a compensatory mechanism by excreting excess fluid.
  • ADH is secreted from the adrenal gland and acts as a compensatory mechanism by retaining essential fluid.
  • ADH is secreted from the pituitary gland and acts as a compensatory mechanism by retaining fluid. (correct)
  • A type 1 diabetic develops diabetic ketoacidosis (DKA). Which of the following is the best explanation for this problem?

    <p>The patient is not able to bring glucose into the cells because of the absence of insulin. This can lead to the accumulation of ketones which can lead to DKA.</p> Signup and view all the answers

    A patient with massive bleeding due to a gun-shot wound is admitted to the ER. The nurse notices that the patient’s arms and legs are cold. What is the patho of cold extremities?

    <p>The peripheral arteries have constricted causing decreased blood to the extremities of the body.</p> Signup and view all the answers

    A patient is suspected of having a rhabdomyosarcoma. Where is the tumor located?

    <p>Skeletal muscle.</p> Signup and view all the answers

    Which of the following is not a released stress hormone when a patient is hypoglycemic?

    <p>ADH</p> Signup and view all the answers

    A chronic smoker has developed some changes in the epithelial lining. The doctor tells him that once he stops smoking the cells should go back to their normal form. What type of cellular adaptation is this?

    <p>Metaplasia.</p> Signup and view all the answers

    A male elderly patient is likely to have a poor prognosis due to the fact that

    <p>As age increases, the chance of a poor prognosis increases because of a worn-out immune system.</p> Signup and view all the answers

    Which of the following diseases encounters a problem with glycogenolysis where the patient is not able to break down glycogen?

    <p>McArdle’s disease.</p> Signup and view all the answers

    Which of the following is a likely sign/symptom if the polar gap is shorter than normal (RMP = -60 mV)?

    <p>Weakness.</p> Signup and view all the answers

    A patient is diagnosed with Sickle Cell Disease. Which type of cell injury best describes the pathophysiology caused by this disease?

    <p>Acute ischemia.</p> Signup and view all the answers

    When glucagon stimulates the conversion of glycogen to glucose, it is called…

    <p>Glycogenolysis.</p> Signup and view all the answers

    Which of the following are used to counteract free radicals? Select all that apply.

    <p>Superoxide dismutase.</p> Signup and view all the answers

    Study Notes

    Genetics and Inheritance

    • A mother with homozygous recessive genotype and a heterozygous father may have varied chances for offspring inheriting PKD.
    • Fetal alcohol syndrome is a teratogenic disorder linked to excessive alcohol consumption during pregnancy.

    Hormonal Regulation and Disorders

    • Antidiuretic hormone (ADH) is secreted from the pituitary gland and compensates for fluid volume deficit by retaining fluid.
    • Diabetic ketoacidosis (DKA) in Type 1 diabetics is primarily due to the inability to transport glucose into cells, leading to ketone accumulation.

    Pathophysiology of Trauma

    • Cold extremities in massive bleeding patients arise from peripheral artery constriction, reducing blood flow to limbs.

    Tumor Types and Locations

    • Rhabdomyosarcoma is a tumor predominantly found in skeletal muscle.

    Stress Responses

    • Stress hormone responses to hypoglycemia include cortisol, epinephrine, and glucagon; ADH is not released in this context.

    Cellular Adaptation

    • Epithelial changes in chronic smokers that revert upon cessation indicate metaplasia, an adaptive response where one cell type transforms into another.

    Aging and Health Outcomes

    • Increased age correlates with poorer prognosis potentially due to a deteriorating immune system.

    Glycogen Metabolism Disorders

    • McArdle’s disease impacts glycogenolysis, preventing glycogen breakdown.

    Cellular Electrical Activity

    • A shorter polar gap (RMP = -60 mV) may indicate symptoms like lethargy and weakness due to altered cellular excitability.

    Disease Mechanisms

    • Sickle Cell Disease involves pathophysiology characterized by abnormal cellular proliferation.

    Metabolic Processes

    • The conversion of glycogen to glucose by glucagon is referred to as glycogenolysis.

    Antioxidative Agents

    • Superoxide dismutase, Vitamin C, and Vitamin E are key substances utilized to counteract free radicals.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your understanding of genetics concepts with this mock exam designed for biology students. It covers inheritance patterns and the implications of genotypes in relation to genetic disorders. Review your answers at the end to evaluate your knowledge!

    More Quizzes Like This

    Genetics Fundamentals Quiz
    37 questions
    Genetics Practice Problems
    12 questions
    Genetics Chapter 3 Flashcards
    30 questions

    Genetics Chapter 3 Flashcards

    MatchlessAltoSaxophone avatar
    MatchlessAltoSaxophone
    Use Quizgecko on...
    Browser
    Browser