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 Prep Biology
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. The inner region of the adrenal gland. The adrenal medulla is part of the sympathetic nervous systme - and releases epinephrine (adrenaline) and norepinephrine into the blood when stimuated. These hormones augment and prolon the effects of sympatheti
Chitin
Pulmonary edema
Glomerulus
Adrenal medulla
2. The volume of air inhaled and exhaled in a normla - resting breath - typically about 500 mL.
Tidal volume
T cell
Inducible enzymes
Pulmonary circulation
3. An organism that can only survive in the absence of oxygen (anaerobic metabolism); oxygen is toxic to obligate anaerobes.
Tolerant anaerobe
Obligate anaerobe
Myoglobin
Chyme
4. A microscopic space between the axon of one neuron and the cell body or dendrites of a secon neruon - or between the axon of a neuron and an organ.
Second messenger
Synaptic cleft
Autosome
Vein
5. The first phase of the ovarian cycle - during which a follicle (an oocyte and its surroudning cells) enlarges and matures. This phase is under the control of FSH from the anterior pituitary - and typically lasts from day 1 to day 14 of the menstrual
Determination
Secondary sex characteristics
Follicular phase
Siding filament theory
6. Integration by a postsynaptic neuron of inputs (EPSPs and IPSPs) from multiple sources.
Thymus
Wolffian ducts
Allosteric regulation
Spatial summation
7. An X- linked recessive disorder in Which blood fails to clot properly - leading to excessive bleeding if injured.
Retina
Centromere
Umbilical cord
Hemophilia
8. A hormone produced and released by the kidney that stimulates the production of red blood cells by the bone marrow.
Organogenesis
Erythropoietin
Erectile tissue
Anaphase
9. A rigid structure at the top of the trachea (so it is part of trachea - I assume) made completely out of cartilage. The larynx has three main functions: (1) its rigidness ensures that the trachea is held open (provides an open airway). (2) the epiglo
Larynx
Iris
Lagging strand
Sudoriferous gland
10. Small organelles that contain the hydrogen peroxide produced as a byproduct of lipid metabolism. Peroxisomes convert hydrogen peroxide to water and oxygen by way of the enzyme catalase.
Peroxisome
Adenine
Pleural pressure
Spongy bone
11. An RNA polymerase that creates a primer (made of RNA) initiate DNa replication. DNA pol binds to the primer and elongates it.
Ventricle
Primase
Universal acceptor
Portal systems
12. The mechanism that ensures tehat skeletal muscle contraction does not occur without neural stimulation (excitation). A trest - cytosolic [Calcium] is low - and the troponin - tropomyosin complex covers the myosin - binding sites on actin. When the mu
Ptyalin
Thecal cells
Aorta
Excitation - contraction coupling
13. An organism that relies on a chemical source of energy (such as ATP) instead of light (which phototrophs).
Mesoderm
Bile
Chemotroph
Myelin
14. An enzyme that cuts one or both strands of DNa to relieve the excess tension caused by the unwinding of the helix by helicase during replication.
Analogous structures
Antigen presenting cell
Topoisomerase
Glucagon
15. A hormone released by the posterior pituitary that stimulates uterine contractions during childbirth and milk ejection during breastfeeding.
Cardiac conduction system
Oxytocin
Osmotic pressure
Mitosis
16. A point mutation in which a pyrimidine is susbstituted for a pyrimidine - or a purine is substituted for a purine.
Ovary
Peripheral chemoreceptors
Innate immunity
Transition mutation
17. The final portion of the large intestine.
Anaphase
Rectum
Ciliary muscles
Acetylcholine (Ach)
18. The inside of the a hollow organ (e.g. - the somach - intestines - bladder - etc.) or a tube (e.g. - blood vessels - ureters - etc.)
Amino Acid
Ossicles
Lumen
Replication bubbles
19. DNA that is densely packed around histones. The genes in heterochromatin are generally inaccessible to enzymes and are turned off.
Tight junction
Heterochromatin
Feedback inhibition
Reflex arc
20. The specific site on an antigenic molecule that binds to a T cell receptor or to an antibody.
Epitope
Auditory tube
Parathyroid hormone (PTH)
Granulosa cells
21. A stack of membranes found near the rough ER in eukaryotic cells that is involved in the secretory pathway. The Golgi is involved in protein glycosylation (and other protein modification) and sorting and packagin proteins.
Golgi apparatus
Secondary oocyte
Cochlea
Ligand - gated ion channel
22. A set of veins that connect a capillary bed in the hypothalamus (the primary capillary plexus) with a capillary bed in the anterior pituitary gland (the secondary capillary bed). Releasing and inhibiting factors from the hypothalamus travel along the
Cofactor
Vasa recta
Hypothalamic - pituitary portal system
Emission
23. The primary enzyme in peroxisomes; catalse catalyzes the hydrolysis of hydrogen peroxide (H2O2) into water and oxygen.
Antiparallel orientation
Catalase
Matrix
Orgasm
24. Active transport that releies on an established concentration gradient - typically set up by a primary active transporter. Secondary active transport relies on ATP indirectly.
Pore
Effector organ
Nucleus
Seondary active transport
25. A short sequence of amino aids - usually found at the N- terminus of a protein being translated - that directs the ribosome and its associated mRNa to the membranes of the rough ER where trasnlation will be completed. Signal sequences are found on me
Hemizygous gene
Atrioventricular valves
Signal sequence
Golgi apparatus
26. A projection of the cell body of a neuron that recieves a nerve impulse form a different neuron and send the impulse to the cell body. Neurons can have one or several dendrites!
Dendrite
Chitin
Testcross
Graafian follicle
27. A four - carbon molecule that binds with the two - carbon acetyl unit of acetyl - CoA to form citric acid in the first step of the Krebs cycle.
Spermatogenesis
Operator
Secretin
Oxaloacetate
28. The membranes that line the surface of the lungs (visceral pleura) and the inside wall of the chest cavity (parietal pleura).
Stroke volume
Purkinje fibers
Pleura
Anaphase
29. A hormone released by the anterior pituitary that targets all cells in the body. Growth hormone stimulates whole body growth in children and adolescents - adn increases cell turnover rate in adults.
Internodal tract
Telencephalon
Testcross
Growth hormone
30. Gaps in the myelin sheath of the axons of peripheral neruons. Action potentials can 'hump' from node to node - thus increasing the speed of conduction (saltatory conduction).
Vagina
Semilunar valves
Nonsense mutation
Nodes of Ranvier
31. The allele in a heterozygous genotype that is expressed; the phenotype resulting from either a heterozygous genotype or a homozygous dominant genotype.
Peristalsis
Dominant
Seminal vesicles
Homologous chromosomes
32. A cytoplasmic protein that recognizes the signal sequences of proteins destined to be translated at the rough ER. It binds first to the ribosome translating the protein with the signal sequence then to an SRP receptor on the rough ER>
Trophoblast
Motor unit
Signal recognition particle (SRP)
cDNA
33. Cells found in gastric glands that secrete hydrochloric acid (for hydrolysis of ingested food) and gastric intrinsic factor (for absorption of vitamin B-12).
Parietal cells
Mucocilliary escalator
Spatial summation
Ovary
34. A type of cell division (in diploid cells) that reduces the number of chromosomes by half. Meiosis usualy produces haploid gametes in organisms that undergo sexual reproduction. It consists of a single interphase (G1 - S - and G2) followed by two set
Meiosis
Phosphofructokinase
Serum
Plasma
35. The failure of two separate genes to boey the Law of Independent Assortment - as might occur if the genes were found close together on the same chromosome.
Interstitial cell
Linkage
Trophoblast
Excretion
36. A bacterium that cannon survive on minimal medium (glucose alone) because it lacks the ability to syntheisze a molecule it needs to live (typically an amino acid). Auxotrphs must ave the needed substance (the auxiliary trophic substance) added to the
Point mutation
Auxotroph
Fibrinogen
Nociceptors
37. Photoreceptors in the retina of the eye that respond to dim light and provide us with black and white vision.
Seondary active transport
Wolffian ducts
Rods
Activation energy (Ea)
38. Bacteria that have a thin peptidoglycan cell wall covered by an outer plasma membrane. They stain very lightly (pink) in Gram stain. Gram - negative bacteria are typically more resistant to antibiotics than Gram - positive bacteria.
Gram - negative bacteria
Resting membrane potential
Systemic circulation
Bacteriophage
39. The primary androgen (male sex steroid). Testosterone is a steroid hormone produced and secreted by the interstitial cells of the testes. It triggers the development of secondary male sex characteristics during puberty (including spermatogenesis) and
Hemizygous gene
Norepinephrine
Testosterone
Cerebellum
40. A structure made of two protein subunits and rRNA; this is the site of protein synthessis (translation) in a cell. Prokaryotic ribosomes (also known as 70S ribosomes) are smaller than eukaryotic ribosome (80S ribosomes). The S value refers to the sed
End plate potential
Ribosome
Secondary immune response
Vaccination
41. An organelle bounded by a double membrane (double lipid bilayer) called the nuclear envelope. The nucleus contains the genome and is the site of replication and transcription.
Diencephalon
Nucleus
Proximal convoluted tubuel
Sex- linked rait
42. A structure composed of a ribose molecule linked to one of the aromatic bases. In a deoxynucleoside - the ribose is replaced with deoxyribose.
Afferent neuron
Nucleoside
Missense mutation
Resting membrane potential
43. An ion channel specific for potassium found in the plasma membrane of all cells in the body. Leak channels are constitutively open and allow their specifi ion to move across the membrane according to its gadient. Potassium leak channels allow potassi
Tonsils
Saltatory conduction
Leukocyte
Potassium leak channel
44. A molecule formed by joining many monosaccharides together. POlysaccharides are typically energy- storage molecules (glycogen in animals - starch in plants) or structural molecules (cellulose in plants - chitin in exoskeletons).
Distal convoluted tubule
Power stroke
Hyperpolarization
Polysaccharides
45. The stoppage of bleeding; blood clotting.
Loose connective tissue
Lag phase
Hemostasis
Myoglobin
46. A eukaryotic organelle filled with digestive enzymes (acid hydrolases) that is involved in digestion of macromolecules such as worng organelles or material ingested by phagocytosis.
Vagina
Lysosome
Vitamin
Primary bronchi
47. Three loop - like structures in the inner ear that contain sensory receptors to monitor balance.
Secondary oocyte
Rule of multiplication
Semicircular canals
Gibbs free energy
48. The movement of a substance from the filtrate (in the renal tuble) bak into the bloodstream. Reabsorption reduces the amount of a substance in the urine.
Placenta
Bacteriophage
Renal absorption
Complement system
49. The prokaryotic ribosome - binding site on mRNA - found 10 nucleotides 5' to the start codon.
Shine - Dalgarno sequence
hCG
G- protein linked receptor
Diaphysis
50. The region of the nephron that surrounds the glomerulus. The capsule ollects the plasma that is filtered from teh capillaries in the glomerulus.
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
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