Unit Q ATIPRACTICe Flashcards
Which of the following cell structures contain cristae? A) DNA B) smooth endoplasmic reticulum C) mitochondria D) peroxisomes
C
Which of the following terms is used to describe the amount of air in a normal inhalation or exhalation? A) perfusion B) tidal volume C) ventilation D) residual volume
B
Which of the following vessels carries deoxygenated blood from the heart to the lungs? A) pulmonary vein B) pulmonary artery C) aorta D) vena cava
B
Which of the following terms refers to the partially digested food leaving the stomach? A) chyme B) pepsin C) bolus D) lactase
A
In which of the following actions is the autonomous nervous system engaged? A) lifting weights B) holding your breath C) walking D) digestion
D
Which is classified as a carbohydrate? A) DNA B) Enophorin C) Glycogen D) Amylase
C
Which of the following best describes the relationship between a chromosome and a gene?
A) each gene forms its own chromosome
B) each chromosome contains a single gene
C) each gene contains a specific number of chromosomes
D) each chromosomes contain a specific number of genes.
D
Which of the following best describes the function of the plasma membrane?
A) it provides energy to the cell
B) it helps to build proteins
C) it maintains the cell’s internal environment
D) it produces adenosine triphosphate (ATP)
C
During inhalation, where would you expect to find a higher concentration of oxygen? A) in the capillaries B) in the alveolar air space C) in the pulmonary artery D) in the heart
B
In which structure connect the throat to the lungs? A) alveoli B) trachea C) bronchi D) surfactant
B
Where does the air flow next after being oxygenated in the lungs? A) pulmonary artery B) pulmonary vein C) inferior vena cava D) aorta
B
Which type of cell helps prevent against disease? A) hemoglobin B) stem C) erythrocyte D) Leukocyte
D
What is the name of the structure that releases the enzyme that breaks down starch in the mouth? A) salivary gland B) pancreas C) liver D) gallbladder
A
Molecules are broken down into smaller pieces by the churning of muscles in the stomach. Which of the following is this an example of? A) mechanical digestion B) chemical digestion C) enzymatic digestion D) peristalsis
A
Which type of tissue would you find in the heart? A) skeletal muscle B) striated muscle C) smooth muscle D) cardiac muscle
D
What proteins are responsible for the contraction of a muscle? A) actin and myosin B) synapse and axon C) pepsin and trypsin D) testosterone and estrogen
A
Which structure is where the female gametes are produced? A) cervix B) ovary C) fallopian tube D) uterus
B
A cut reaches the sebaceous glands and the hair follicles. This cut has reached which layer of the skin? A) epidermis only B) epidermis and dermis C) hypodermis and dermis D) hypodermis and epidermis
B
Which of the following would result in decrease in body temperature?
A) blood vessels near the surface of the body would dilate
B) blood vessels near the surface of the body would constrict
C) sebaceous glands would excrete water
D) cheeks would become more flush
B
Which of the following is where melanocytes are found? A) epidermis B) dermis C) hypodermis D) sebaceous glands
A
Which of the following structures release glucagon and insulin? A) adrenal B) hypothalamus C) pancreas D) pituitary
C
Which of the following stores waste before its released from the body? A) kidney B) urethra C) ureters D) urinary bladder
D
Which of the following substances describes the fluid that contain urea, water, and salts that is released through the urethra? A) urine B) filtrate C) blood D) nephron
A
Which of the following parts in the genitourinary system regulates blood pressure? A) ureter B) renin C) bladder sphincters D) heart
B
In which of the following body structures are white blood cells produced? A) muscle B) bone C) glands D) skin
B
Which of the following is an example of a long bone? A) tibia B) rib C) skull D) pelvis
A
Which of the following statements best describe the subatomic particles that make up an atom?
A) protons and electrons are about the same size and are found in the nucleus
B) protons and neutrons are about the same mass and can be found in the nucleus
C) electrons are found in the nucleus and make up most of the mass of an atom
D) protons are the only particles with mass and can be found in the nucleus
B
