SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
CLEP Natural Science
Start Test
Study First
Subjects
:
clep
,
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. Pores which allows materials to move in and out of the cell nucleus
stigma
nuclear pores
centrioles
pedicel
2. Bead-like structure in chromatin - composed of a short length of DNA wrapped around a core of histone proteins
nucleosome
shoot apex
gymnosperms
prophase
3. The second phase of mitosis - during which the chromosomes line up across the center of the cell
transduction
metaphase
mitosis
post-transcriptional processing
4. Stalk that supports the flower
inhibitor
DNA
alleles
pedicel
5. Structure within ovary of plant that contains egg cells
chromatids
cell membrane
ribosomes
ovules
6. Site of protein synthesis. Free ribosomes - float unattached; attached ribosomes - attached to the ER
alleles
pedicel
ribosomes
transduction
7. Tubes - One of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope; play a role in cell division.
nuclear pores
centrioles
active site
krebs cycle
8. Small - dense region within most nuclei in which the assembly of RNA proteins begins
centromere
nucleolus
vascular plants
secretory vesicles
9. An internal membrane system in which components of cell membrane and some proteins are constructed. rough - instrumental in protein synthesis; smooth - processes lipids fats and steroids
diploid
endoplasmic reticulum
cell cycle
transformation
10. Breakdown of more complex substances into simpler ones with release of energy
gymnosperms
alleles
catabolism
codon
11. The stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle
ribosomes
meiosis
anaphase
prosthetic group
12. Modifications of pre-mRNA that make it into mature mRNA - so that it is ready for protein synthesis
post-transcriptional processing
transformation
haploid
facilitated diffusion
13. Classification of plant which forms seeds inside a protective chamber called an ovary - inside a flower
DNA
ATP
angiosperms
grana
14. The female part of a flower composed of ovary and style and stigma and ovules
inhibitor
pistil
alleles
anaphase
15. Particle made up of DNA - RNA - protein - and in some cases lipids that can only replicate only by infecting living cells
electron microscope
nucleosome
shoot apex
virus
16. Stores - packages and ships proteins
golgi apparatus
transformation
facilitated diffusion
translation
17. Reducing the ploidy level of nucleus from diploid to haploid in meiotic cell division
meiosis
reduction
post-transcriptional processing
haploid
18. A substance that retards or stops enzymatic activity
chlorophyll
crossing over
inhibitor
enzymes
19. Projections on cell membrane increase surface area
annuals
gametes
microvilli
endosymbiont hypothesis
20. Used to examine tiny cell organelles
chromatin
interphase
tonoplast
electron microscope
21. The final stage of mitosis or meiosis - during which a nuclear membrane forms around each set of new chromosomes
reduction
electron transport
telophase
interphase
22. Powerhouse of the cell - organelle that is the site of ATP (energy) production
photolysis
translation
gymnosperms
mitochondria
23. The organic process whereby the DNA sequence in a gene is copied into mRNA
cell membrane
chromatids
transcription
enzymes
24. The process of transfering genetic material from one cell to another
transduction
annuals
prophase
electron transport
25. Hollow tubes of protein about 25 nanometers in diameter - support the cell and moves organelles within the cell
catabolism
microtubules
lysosomes
mitochondria
26. Smallest unit of most living things
cell
transduction
chlorophyll
vacuole
27. Sticky portion at the top of the style which traps pollen
photolysis
annuals
carbon dioxide fixation
stigma
28. A substance that must join with the enzyme to enable it to fit the substrate
secretory vesicles
organelles
stamen
cofactor
29. The complete genetic material contained in an individual
genome
crossing over
anaphase
nucleosome
30. Provides structural support to a cell composed of microtubules - microfilaments - centrioles
diploid
transduction
secretory vesicles
cytoskeleton
31. Change in a DNA sequence that affects genetic information
translation
endosymbiont hypothesis
angiosperms
mutation
32. Double-stranded chains of proteins which give structure to the cell
filament
telophase
microfilaments
fermentation
33. A long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix
diploid
DNA
cell wall
microtubules
34. The organ that bears the ovules of a flower - base of the pistil
centromere
ovary
cristae
codon
35. In photosynthesis - this is the splitting of water by light
homologs
chromatids
photolysis
ATP
36. The part of an enzyme where the chemical reaction occurs
homologs
cell
reduction
active site
37. Packaged protein or other substance produced by golgi apparatus/endoplasmic reticulum
homologs
secretory vesicles
carbon dioxide fixation
fermentation
38. Part of stem where growth occurs - contains meristem tissue that is capable of quick growth
cell wall
metabolism
shoot apex
alleles
39. Cell division that produces reproductive cells in sexually reproducing organisms
anaphase
facilitated diffusion
crossing over
meiosis
40. A non-protein - but organic - molecule (such as vitamin) that is covalently bound to an enzyme as part of the active site
annuals
mitochondria
microtubules
prosthetic group
41. First step in releasing the energy of glucose - in which a molecule of glucose is broken into two molecules of pyruvic acid
transformation
cofactor
cell
glycolysis
42. Classification of plant whose life cycle survives two seasons
endocytic vesicles
post-transcriptional processing
biennial
inhibitor
43. The part of the stamen that contains pollen
eukoryotic cells
anther
crossing over
meiosis
44. Have tissues made of cells that transport water and nutrients throughout the plant
mitochondria
cytokinesis
vascular plants
nucleosome
45. Body of a chloroplast containing grana
stigma
stroma
grana
endocytic vesicles
46. Two identical chromosomes that split and contain the same genetic material
facilitated diffusion
chromatids
angiosperms
biennial
47. Classification of plant which survives only a single season
annuals
anabolism
prosthetic group
ovules
48. Photosynthetic reaction in which carbon dioxide is attached to an organic compound (glucose - polysaccharides)
virus
carbon dioxide fixation
cell wall
golgi apparatus
49. Process of building up complex materials (proteins) from simple materials
DNA
transformation
gametes
anabolism
50. Small structures in the cytoplasm of a cell that do special jobs
mitochondria
cristae
inhibitor
organelles
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