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Human Bio 101
Flash Cards of all previous quiz questions and answers
101
Biology
Undergraduate 2
12/08/2011

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Cards

Term
Choose the proper order of the taxonomic categories from SMALLEST to LARGEST
Definition
Genus, Family, Order, Phylum, Domain
Term
Organisms that are designated as autotrophs obtain their energy from
Definition
The sun
Term
Which is true when two monosaccharides bond together to form a disaccharide?
Definition
It is a dehydration synthesis reaction
Term
The sum of all chemical reactions that take place in the body are known as
Definition
Metabolism
Term
In biological systems, what substances are composed of weak acid and a weak base and help maintain H with certain narrow limits?
Definition
Buffers
Term
Sodium has 11 protons. How many electrons are in its third energy level?
Definition
1
Term
The nucleus of an atom contains
Definition
Neutrons and Protons
Term
What is the strongest chemical bond?
Definition
Covalent
Term
A Hydrogen bond
Definition
Occurs when shared electrons spend more time around an oxygen atom, giving it a net negative charge
Term
WHen a solution has a pH of greater than 7
Definition
The solution is basic
Term
The chemical symbol for Sodium is
Definition
Na
Term
Which statement is true?
Definition
b. A cell placed in a hypotonic solution will swell
Term
Which cellular organelle is responsible for sorting, packaging and delivering proteins to various parts of the cell?
Definition
Golgi Apparatus
Term
The organelle known as the powerhouse of the cell that produces ATP is the
Definition
Mitochondria
Term
Movement of molecules against the concentration gradient (moving from areas of low to high concentrations) using ATP in the process is called
Definition
Active Transport
Term
Which accurately describes translation?
Definition
Protein is produced using the mRNA template
Term
Describe osmosis (short answer)
Definition
Diffusion through water. Water Follows the Solute from high to low concentrations until equilibrium is reached.
Term
Which of the following is not a component of connective tissue?
Definition
Striations
Term
Which cells suspended in blood plasma and are responsible for carrying respiratory gases?
Definition
Erythrocytes
Term
Which is NOT a characteristic of epithelial tissue?
Definition
There is an extensive extra-cellular matrix (there isn't)
Term
An organelle found in the cytoplasm that synthesizes proteins is called
Definition
Ribosome
Term
Complimentary mRNA to this DNA sequence

A-G-T-A-C-C-T-G
Definition
U-C-A-U-G-G-A-C
Term
Which of the following describes mRNA
Definition
e. Both a and C

a. It is transcribed from DNA
c. Is simular to DNA, except for the transcription of Uracil (U) for Thymine (T)
Term
The Cells in the epidermis that are involved in immunity are called:
Definition
Langerhan's cells
Term
How many cervical vertebra does a person have?
Definition
7
Term
Hari and skin color is due to the activity of which kind of cells?
Definition
Melanocytes
Term
The growth plate of a bone is known as
Definition
Metaphysis
Term
The spaces between the trabeculae of spongy bone contain
Definition
Red marrow
Term
Name the process by which most of the long bones are formed in which hyaline cartilage template is replaced by bone matrix
Definition
Endochondral ossification
Term
The cells responsible for breaking down bone and adding minerals to the bloodstream are called
Definition
Osteoclasts
Term
The glands that produce sweat/perspiration are known as
Definition
Sudoriferous Glands
Term
Which layer of the epidermis contains the "stem cells" that divide to produce the majority of the cells in the adjacent layers?
Definition
Stratum Germanitivum/ Stratum Basale
Term
What substance is secreted by parietal cells in the stomach?
Definition
Hydrochloric acid
Term
What salivary gland is located inferior to the ear, produces approximately 25% of saliva and produces secretions rich in salivary amylase but little to no mucus?
Definition
Parotid glands
Term
How many canines does the human adult have in each quadrant of their mouth
Definition
1
Term
Which organ of the digestive system secretes many digestive enzymes and sodium bicarbonate?
Definition
Pancreas
Term
Which is NOT a function of the liver?
Definition
Production of brush border enzymes
Term
Which of the following digests fats?
Definition
Lingual lipase
Term
Absorption of digested substances occurs primarily in the
Definition
Jejunum
Term
Insoluble plant fiber does what?
Definition
Helps move chime through the digestive tract
Term
Soluble plant fiber does what?
Definition
Slows the absorption of glucose and helps aid in absorption
Term
Each erythrocyte can carry approximately how many molecules of oxygen?
Definition
1 billion
Term
Blood type AB has which antigens?
Definition
A and B
Term
Which type of leukocyte is the least numerous and functions to liberate histamine and serotonin in allergic reactions which intensifies the overall inflammatory response?
Definition
Basophils
Term
Which is the least listed step in homeostasis?
Definition
Conversion of soluble fibrinogen to insoluble fibrin
Term
Which side of the heart pumps blood through the systemic circuit to the body?
Definition
Left
Term
Blood in arteries
Definition
a. Always travels away from the heart
Term
Veins
Definition
Tend to have thinker, rounder walls and their tunica media contains more smooth muscle
Term
What is the name of the sac surrounding the heart?
Definition
Pericardium
Term
In its travel through the body, blood usually continues on from capillaries to enter:
Definition
b. Venules
Term
Which of the following DOES NOT aid in venous return?
Definition
Extensive muscular tunica media
Term
Which vessels have the slowest blood velocity?
Definition
Capillaries
Term
Which structure is the internal pacemaker of the heart?
Definition
SA node
Term
Which portion of an EKG indicates atrial re-polarization and ventricular depolarization?
Definition
b. QRS complex
Term
From which vessels does gas exchange occur?
Definition
Capillaries
Term
The human vocal cords are located in the
Definition
Larynx
Term
During exhalation
Definition
b. The pressure in the thoracic cavity is less than the pressure of the outside air
Term
Where does gas exchange occur?
Definition
Alveoli
Term
The exchange of gases between the blood and the tissues is called
Definition
internal respiration
Term
What is the most abundant atmospheric gas?
Definition
Nitrogen
Term
Which law states that the pressure of a gas in a closed container is inversely proportionate to the volume of the container?
Definition
Boyle's law
Term
Which gas has the highest solubility coefficient
Definition
Carbon Dioxide
Term
Which of the folowing are multipolar neurons?
Definition
e. A and C

a. Interneuron
c. Motor Neurons
Term
Which cells myelinate axons in the peripheral nervous system (PNS)
Definition
Schwann cells
Term
Which of the following is true of nerve cell at rest?
Definition
e. Both A and C

a. there is a greater concentration of sodium in the extra-celluar fluid
c. There is greater concentration of potassium in the intracelluar fluid
Term
What carries information away from the soma (cell body)?
Definition
Axon
Term
Which neuroglial cells are the most numerous, help form the blood-brain barrier, guide neuronal development in the developing brain and stabilize damaged neural tissue to prevent further damage?
Definition
Astrocytes
Term
Trace the simple reflex arc by selecting the correct order for the following steps
1. Arrival of the stimulus
2. Response by an effector
3. Information processing
4. Activation of a sensory neuron
5. Activation of a motor neuron
Definition
c. 1-4-3-5-2
Term
What are collections of nerve cell bodies INSIDE the CNS
Definition
Nuclei
Term
Where do you find cell bodies of sensory neurons?
Definition
Dorsal root ganglion
Term
What is the tough, outer-most layer of the meninges?
Definition
Dura Mater
Term
Preganglionic neurons of the parasympathetic nervous system arise from
Definition
e. B and C

b. Nuclei of cranial nerves
c. Spinal cord segments S2-S4
Term
Which best describes the conus medularis?
Definition
b. The pointed end of the spinal cord near L1-L2
Term
On its path from the skin, a sensory/afferent neuron signal travels from a peripheral receptor through which of the following structures next?
Definition
Dorsal root ganglion
Term
Which of the following is true of the electron transport system?
Definition
e. Harness the kinetic energy of H+ ions to produce ATP
Term
Which class of nutrients is the most energy packed (most calories per gram)?
Definition
b. Fats
Term
In the kidneys, about what proportion of the tubular fluid is reabsorbed?
Definition
e. 99%
Term
In what proportion of the nephron are the majority of water, sodium and organic substances reabsorbed?
Definition
a. Proximal convoluted tubule (PCT)
Term
Which tube carries urine from the kidney to the urinary bladder?
Definition
The ureter
Term
Which cells secrete H+ ions to adjust pH?
Definition
Intercalated cells
Term
The process by which penicillin, and unwanted substances such as toxins and some ions are put into the urine by active transport is called
Definition
Secretion
Term
What is the name of the capillary knot that where renal filtration occurs?
Definition
Glomerulus
Term
What is the functional unit of the kidney?
Definition
Nephron
Term
Where is cerebral spinal fluid (CSF) made?
Definition
c. By the choroid plexus in the ventricles of the brain
Term
Which of these is part of the brain stem?
Definition
d. Medulla Oblongata
Term
Which type of brain waves are present in individuals experiencing sensory input and an active mind?
Definition
Beta Waves
Term
Indentations or grooves down the surface of the cerebrum are called
Definition
c. Sulci
Term
What part of the brain controls and coordinates subconscious movement of skeletal muscles, predicts future position of a body part and receives input from tendons, joints, muscles, receptors, in the eyes and ear?
Definition
c. Cerebellum
Term
Which structure focuses the light on the retina and makes adjustments for distance?
Definition
c. Lens
Term
Name the glands embedded in the olfactory epithelium that a water mucous that dissolves gases with odor causing molecules and moistens olfactory epithelium
Definition
c. Bowman's Glands
Term
What is the point of the highest visual acuity (best vision) in the eye?
Definition
Fovea Centralis of the Macula Lutea
Term
Which ear ossicle contact the tympanic membrane?
Definition
Malleus
Term
Which part of the inner ear is responsible for dynamic equilibrium only?
Definition
Semi-circulatory canals
Term
Which energy system for muscle contraction lasts the longest?
Definition
Aerobic system
Term
Repeated muscular stimulation without sufficient interval causing a sustained contraction is called
Definition
tetanus
Term
Which muscle subunit contains myosin-binding sites?
Definition
Actin
Term
What chemical is needed for myosin cross-bridges to detach
Definition
ATP
Term
What is the name of the support cells that provide nourishment to developing sperm, support and protect spermatogenic cells and form the blood-testes barrier?
Definition
Sustentacular cells
Term
Which accessory sex gland produces fluid rich in fructose and produces the largest proportion of the semen?
Definition
Seminal Vesicle
Term
Which layer of the uterus is shed each month during menstruation?
Definition
Stratum Functionalis of the Endometrium
Term
Which Hormone speaks after ovulation during the secretory menstrual phase and helps prepare the uterus for implantation?
Definition
Progesterone
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