SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
MCAT Biology 2
Start Test
Study First
Subjects
:
mcat
,
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Any cell in a multicellular organism except a sperm or egg cell.
somatic cell
atria
cretinism
Protein
2. Enzymatically converts glucose through several steps (9)into pyruvic acid and provides a small amount of ATP
red fibers
IgG
glycolytic pathway
synaptic cleft
3. Type of nucleic acid located in some viruses and in human tRNA and rRNA as localized hairpin loops and stem loops double strand RNA
catabolism
sarcoplasmic reticulum
chaperones
dsRNA
4. Organelles that serve as specialized containers for metabolic reactions.
osmolarity gradient
end product inhibition
microbodies
cotransport
5. Are molecules that relay signals from receptors on the cell surface to target molecules inside the cell - in the cytoplasm or nucleus. They relay the signals of hormones like epinephrine (adrenalin) - growth factors - and others - and cause some kind
small intestine
second messenger
cascade effect
cortisol
6. A protein that folds into a compact shape so that the polar and ionic amino acids are on the outside and the nonpolar amino acids are on the inside. They function as enzymes - hormones - membrane pumps and channels - membrane receptors andinter/intra
chemiosmosis
globular protein
osteoblasts
Phospholipid bilayer
7. Immunoglobulin. Less than 3%. Found only as a receptor on B cell membrane - Doesn't allow antigens to get into the body - Not secreted - stays attached to B cell
stratum basalis
IgD
immune cells
alimentary canal
8. Support sperm formation; development and maintenance of male secondary sex characteristics
diaphysis
androgens
gametocytes
nephron
9. Movement from a high concentration area to a low concentration area - only works with oily substances - needs to cross oily cell membrane (nonpolar substances) - no energy is required. Movement down concentration gradient
thyroid gland
larynx
simple diffusion
epiphyseal plate
10. Alpha helix and beta pleated sheet formed through formation of hydrogen bonds. - The second level of protein structure; the regular local patterns of coils or folds of a polypeptide chain.
diploid
BNP
Secondary structure
primary oocytes
11. Forms the main trunk of the body and is composed of the skull - spinal column - ribs - and breastbone
jejunum
composite cell
axial skeleton
telopahse
12. The form of sugar that circulates in the blood and provides the major source of energy for body tissues. When its level is low - we feel hunger. Accounts for 80% of carbs absorbed by humans.
lock and key theory
dissociation curve
diabetes mellitus
Glucose
13. Part of the Loop of Henle that removes Sodium from the blood. - Reabsorption of ions; creates the concentration gradient in the medulla - enabling the kidney to produce concentrated urine
morula
ascending limb
reticular fibers
exoskeleton
14. The period of the cell cycle during which the nucleus is not undergoing division - typically occurring between mitotic or meiotic divisions
endothelial cell
carbonic anhydrase
vasa recta
Interphase
15. The potential energy stored in the form of an electrochemical gradient - generated by the pumping of hydrogen ions across biological membranes during chemiosmosis.
proton motive force
neurotransmitters
DNA polymerase
excretion
16. A person whose type O Rh - negative blood may be safely transfused into persons with other blood types
primary response
vasopressin
universal donor
endoderm
17. A type of protein filament that interacts with actin filaments to cause cell contraction.
myosin
chondrocytes
meiosis
osmotic pressure
18. Weak chemical bond formed by the attraction of positively charged hydrogen atoms to other negatively charged atoms.
dizygotic twins
Hydrogen Bond
anasarca
gap junction
19. Cartilaginous area at the ends of long bones where lengthwise growth takes place in the immature skeleton
epiphyseal plate
angiotensin II
thromboplastin
cardiac sphincter
20. A process for synthesizing ATP using the energy of an electrochemical gradient and the ATP synthase enzyme.
chemiosmosis
ovaries
nonspecific defense mechanism
neuromuscular junction
21. Mature spermatids that are fully functional and capable of fertilizing a human ovum
GH
diaphragm
spermatozoa
appendicular skeleton
22. Glands located in the walls of the stomach - secreting the hormone gastrin in response to certain substances in food.
capsid
portal systems
chemical digestion
pyloric glands
23. Exocrine gland - in men - at the base of the urinary bladder that secretes the fluid part of semen into the urethra during ejaculation
prostate gland
alimentary canal
epithelial tissue
centrisomes
24. A biomolecule that binds to the regulatory site of an allosteric protein and thereby modulates its activity. An allosteric modulator may be an activator or an inhibitor. Also known as the allosteric effector.
basement membrane
PNS
allosteric modulator
acrosomal process
25. Amino acids that an animal cannot synthesize itself and must be obtained from food. Eight of these are essential in the human adult.
myosin
essential amino acids
external nares
synovial fluid
26. A gonadotropic hormone that is secreted by the anterior pituitary and stimulates growth of Graafian follicles in female mammals - and activates sperm - forming cells in male mammals
3
epiglottis
internal intercostal muscles
FSH
27. Occurs across the placenta - fetal lungs do not become functional until birth.
proteasomes
fetal gas exchange
IgM
blood vessel
28. Thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles - birds and mammals)
alpha amino acid
ketoacidosis
amnion
sarcoplasmic reticulum
29. A protein present in muscle fibers that aids in contraction and makes up the majority of muscle fiber
total lung capacity
primary oocytes
myosin
epiglottis
30. Outermost membranous sac enclosing the embryo in higher vertebrates (reptiles - birds and mammals)
chorion
external nares
nephron
gland cells
31. Compounds made of a metal and nonmetal that are formed when acids and bases react
synapse
lipoprotein
salts
lymphokines
32. The stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle
variable regions
secondary active transport
anaphase I
anaphase
33. Produced by the thymus gland during childhood - this hormone stimulates T- lymphocyte development and differentiation.
white fibers
sarcomeres
thymosin
indeterminate cleavage
34. Package of nucleic acid wrapped in a protein coat that must use a host cell's machinery to reproduce itself. are not considered living cells.
striated muscle
intermediate filaments
spermatids
virus
35. The division of the peripheral nervous system that controls the body's skeletal muscles. Also called the skeletal nervous system
somatic nervous system
endothelial cell
follicles
hyperglycemia
36. Fibers in the ventricles that transmit impulses to the right and left ventricles - causing them to contract
vital capacity
distal convoluted tubule
chondrocytes
purkinje fibers
37. Compounds that reduce the concentration of hydrogen ions in a solution
osteocytes
bases
genetic recombination
inhibiting hormones
38. Hormone that increases the reabsorption of water by nephrons - Hormone that is released from the posterior pituitary in response to nerve impulses. This causes the distal and collecting tabules of the kidneys to reabsorb more water from the urinary f
ovum
ADH
ed blood cells
hepatic portal vein
39. Specialized lymphatic capillaries in the intestines that take up lipids as well as lymph.
polyribosome
lacteals
cardiovascular system
extensor muscle
40. Induces contraction of the uterine muscles during childbirth and causes the mammary glands to eject milk during nursing
semiautonomous
oxytocin
troponin
lamellae
41. An enzyme complex in the inner membrane of a mitochondrion and the thylakoid membrane of a chloroplast that catalyzes the formation of ATP.
posterior pituitary
delta cells
ATP synthetase
primary spermatocytes
42. Produce about 60% of seminal fluid - these are located at the posterior wall of the urinary bladder close to the terminus of the ductus deferens. They produce a substance that nourishes the sperm passing through the tract or that promote the fertiliz
fight or flight response
glycolysis
seminal vesicles
synapse
43. Volume of blood pumped by one ventricle per minute; stroke volume x heart rate
negative pressure breathing
cardiac output
interphase
secondary spermatocytes
44. A solution in which the concentration of solutes is greater than that of the cell that resides in the solution
hypertonic solution
allantois
osteons
telomeres
45. The process by which wastes are removed from the body
dinitrophenol
excretion
micelles
osteoblasts
46. Long threads made of the protein elastin. provide a rubbery quality to the extracellular matrix that complements the nonelastic strength of collagenous fibers.
haversian systems
diaphysis
elastic fibers
acrosome
47. A spiral shape constituting one form of the secondary structure of proteins - arising from a specific hydrogen - bonding structure.
universal recipient
alpha helix
ADP
ptyalin
48. Stack of membranes in the cell that modifies - sorts - and packages proteins from the endoplasmic reticulum. Recieves vesicles and their contents from smooth ER.
genetic recombination
Golgi apparatus
peptidases
coenzymes
49. The extraembyonic membrane of birds - reptiles and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products
G1 phase
eosinophils
TSH
allantois
50. An iron - containing protein that is a component of electron transport chains in the mitochondria and chloroplasts of eukaryotic cells and the plasma membranes of prokaryotic cells. Examples are hgb and the ones involved in the ETC in the inner membr
signal transduction
Cytochromes
hyperglycemia
bile
Sorry!:) No result found.
Can you answer 50 questions in 15 minutes?
Let me suggest you:
Browse all subjects
Browse all tests
Most popular tests
Major Subjects
Tests & Exams
AP
CLEP
DSST
GRE
SAT
GMAT
Certifications
CISSP go to https://www.isc2.org/
PMP
ITIL
RHCE
MCTS
More...
IT Skills
Android Programming
Data Modeling
Objective C Programming
Basic Python Programming
Adobe Illustrator
More...
Business Skills
Advertising Techniques
Business Accounting Basics
Business Strategy
Human Resource Management
Marketing Basics
More...
Soft Skills
Body Language
People Skills
Public Speaking
Persuasion
Job Hunting And Resumes
More...
Vocabulary
GRE Vocab
SAT Vocab
TOEFL Essential Vocab
Basic English Words For All
Global Words You Should Know
Business English
More...
Languages
AP German Vocab
AP Latin Vocab
SAT Subject Test: French
Italian Survival
Norwegian Survival
More...
Engineering
Audio Engineering
Computer Science Engineering
Aerospace Engineering
Chemical Engineering
Structural Engineering
More...
Health Sciences
Basic Nursing Skills
Health Science Language Fundamentals
Veterinary Technology Medical Language
Cardiology
Clinical Surgery
More...
English
Grammar Fundamentals
Literary And Rhetorical Vocab
Elements Of Style Vocab
Introduction To English Major
Complete Advanced Sentences
Literature
Homonyms
More...
Math
Algebra Formulas
Basic Arithmetic: Measurements
Metric Conversions
Geometric Properties
Important Math Facts
Number Sense Vocab
Business Math
More...
Other Major Subjects
Science
Economics
History
Law
Performing-arts
Cooking
Logic & Reasoning
Trivia
Browse all subjects
Browse all tests
Most popular tests