BIOS 256

what are male gametes? - answerSperm What are female gametes? - answerSecondary oocytes Embryonic period? - answerFrom fertilization through the eighth week of development Fetal period? - answerBegins at week 9 and continues on until birth Describe the first trimester? - answerThe first trimester is from conception to 13 weeks. This period is very critical to babies health due to the extensive oran-system development, and baby is most vulnerable to teratogens. Describe the second trimeste...

1 The urinary system does all of the following, EXCEPT it Asecretes excess glucose molecules B regulates blood volume C contributes to stabilizing blood pH D eliminates organic waste products E regulates plasma concentrations of electrolytes 2 Conical structures that are located in the renal medulla are called A pyramids B renal columns C renal pelvises D nephrons E calyces 3 The region known as the macula densa is part of Athe proximal convoluted tubule B the distal convoluted tubule ...

Anemia is caused by a defective gene resulting in abnormal hemoglobin: a. Hemorrhagic anemia b. Aplastic Anemia c. Pernicous Anemia d. Sickle Cell Anemia - Correct Answer -d. Sickle Cell Anemia Which of the following has the function of defending against parasites? a. Erythrocyte b. Basophil c. Neutrophil d. Lymphocyte e. Eosinophil - Correct Answer -e. Eosinophil Blood clotting is dependent upon: a. Vitamin A b. Vitamin D c. Vitamin E d. Vitamin K e. Vitamin C - Correct Answ...

# Question 1 What are the three types of muscle tissue and where are they found in the body? - **Skeletal muscle**: attached to bones and responsible for voluntary movements - **Cardiac muscle**: found in the heart and responsible for pumping blood - **Smooth muscle**: found in the walls of hollow organs such as blood vessels, stomach, intestines, bladder, uterus and responsible for involuntary movements # Question 2 What are the two main divisions of the nervous system and what are their ...

• This examination covers content learned in weeks 3 and 4 (Nutrition and Metabolism and Urinary System) • This midterm exam is worth 110 total points, and includes the following types of questions: o 15 Multiple choice questions o 5 Multiple answers o 10 Fill in the blank question o 2 Essay questions • You have 75 minutes to complete the Exam. Nutrition and Metabolism (Ch. 26) Q1. Differentiate between anabolism and catabolism Two crucial and related metabolic processes that take...

Which hormone produced by the placenta causes the mother's pubic symphysis to loosen and widen? a. relaxin b. hCg c. estrogen d. progesterone - Correct Answer -a. relaxin Which of the following is not a common metabolic/physiological change that occurs in pregnant women? a. lower blood pressure b. glucose sparing c. increased urine production d. increased tidal volume - Correct Answer -a. lower blood pressure The events of puberty are cause by a. an increase in gonadal hormones b. r...

Virtually all of the protein or amino acid-based hormones exert their effects through intracellular __________. a. ions b. deactivators c. second messengers d. nucleotides - Correct Answer -c. second messengers Chemical Substances secreted by cells into the extracellular fluids that regulate the metabolic function of other cells in the body are called ___________. a. proteins b. antibodies c. hormones d. enzymes - Correct Answer -c. hormones The master gland of the endocrine sy...

Know the components of a nephron - Correct Answer -renal corpuscle and renal tubule know the components of renal corpuscle - Correct Answer -glomerular capsule (Bowman's capsule) and glomerulus Know the components of the renal tubule - Correct Answer -proximal convoluted tubule, nephron loop, distal convoluted tubule Identify the cells that produce insulin - Correct Answer -Beta cells Identify the cells that produce calcitonin - Correct Answer -Parafollicular cells Know the stimu...

When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E. Resistance - Correct answer- C. Fulcrum. Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hillock, causing its membrane potential to reach threshold? A. Ligand-gated Ca++ channels close rapidly B. Voltage-gated Ca++ channels open rapidly C. Ligand-gated Na+ channe...

Advances in microscopy reveal that bacteria have what? - ANSWER compartments aerotolerant anaerobes - ANSWER tolerate but do not use oxygen anaerobic respiration produces - ANSWER less ATP -less free energy is released Antibiotic resistance mechanisms - ANSWER efflux pumps- pump out the antibiotic prevent entry- modify membrane degradative enzymes- destroy the antibiotic interfering molecules bind to antibiotic- antibiotic cannot identify target enzymes modify the antibiotic- add or ...