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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. Green pigment contained in the grana
transduction
chlorophyll
translation
organism
2. Living thing
electron microscope
substrate
glycolysis
organism
3. Hollow tubes of protein about 25 nanometers in diameter - support the cell and moves organelles within the cell
carbon dioxide fixation
golgi apparatus
microtubules
cofactor
4. Pores which allows materials to move in and out of the cell nucleus
carbon dioxide fixation
microtubules
glycolysis
nuclear pores
5. Used to examine tiny cell organelles
electron microscope
mitochondria
metabolism
anther
6. The process whereby genetic information coded in messenger RNA directs the formation of a specific protein at a ribosome in the cytoplasm through tRNA
carbon dioxide fixation
pistil
translation
gametes
7. Division of the cytoplasm during cell division - new cell is formed
enzymes
alleles
cytokinesis
anabolism
8. The second phase of mitosis - during which the chromosomes line up across the center of the cell
chromatids
transduction
substrate
metaphase
9. A cell having two sets of chromosomes or twice the haploid number
nucleosome
codon
pistil
diploid
10. Set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes
diploid
telophase
ribosomes
metabolism
11. The interchange of sections between pairing homologous chromosomes during the prophase of meiosis
cofactor
transformation
crossing over
carbon dioxide fixation
12. Change in a DNA sequence that affects genetic information
mutation
centrioles
stroma
cell wall
13. Packaged protein or other substance produced by golgi apparatus/endoplasmic reticulum
secretory vesicles
centrioles
perennial
electron transport
14. Different forms of a gene
post-transcriptional processing
alleles
DNA
cell
15. Structure within ovary of plant that contains egg cells
ovules
nucleolus
eukoryotic cells
cofactor
16. In photosynthesis - this is the splitting of water by light
ovary
secretory vesicles
photolysis
carbon dioxide fixation
17. Process of building up complex materials (proteins) from simple materials
chlorophyll
microtubules
tonoplast
anabolism
18. Strong layer around the cell membrane in plants - algae - and some bacteria made of cellulose and lignin
microvilli
cell membrane
tonoplast
cell wall
19. Particle made up of DNA - RNA - protein - and in some cases lipids that can only replicate only by infecting living cells
filament
virus
cell cycle
shoot apex
20. Classication of plant which produce seeds which are 'naked' (in cones)
gymnosperms
chlorophyll
prophase
eukoryotic cells
21. Anaerobic cellular respiration in which pyruvic acid is broken down into end products such as lactic acid
codon
fermentation
crossing over
ATP
22. Tubes - One of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope; play a role in cell division.
microtubules
facilitated diffusion
nucleosome
centrioles
23. The final stage of mitosis or meiosis - during which a nuclear membrane forms around each set of new chromosomes
microtubules
enzymes
telophase
chlorophyll
24. Classification of plant whose life cycle survives two seasons
nucleolus
gametes
biennial
centromere
25. Provides structural support to a cell composed of microtubules - microfilaments - centrioles
vacuole
cytoskeleton
alleles
anabolism
26. The regular sequence of growth and division that cells undergo
gene
electron transport
prokaryotes
cell cycle
27. Bead-like structure in chromatin - composed of a short length of DNA wrapped around a core of histone proteins
alleles
fermentation
nucleosome
microfilaments
28. The stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle
biennial
cell wall
anaphase
mitochondria
29. The substance acted upon by an enzyme
crossing over
prokaryotes
substrate
angiosperms
30. Modifications of pre-mRNA that make it into mature mRNA - so that it is ready for protein synthesis
reduction
post-transcriptional processing
ovules
microvilli
31. Part of stem where growth occurs - contains meristem tissue that is capable of quick growth
cell wall
mitosis
shoot apex
annuals
32. Passive transport of materials across a plasma membrane by transport proteins embedded in the plasma membrane
facilitated diffusion
carbon dioxide fixation
gametes
active site
33. Classification of plant which forms seeds inside a protective chamber called an ovary - inside a flower
anaphase
annuals
angiosperms
shoot apex
34. Consists of DNA tightly coiled around proteins
enzymes
cell cycle
chromatin
cell membrane
35. Projections on cell membrane increase surface area
biosynthesis
endocytic vesicles
microvilli
eukoryotic cells
36. Stalk that supports the flower
pedicel
inhibitor
chromatids
glycolysis
37. The male reproductive organ of a flower consisting of anther - filament - and pollen
stamen
shoot apex
haploid
metabolism
38. The organ that bears the ovules of a flower - base of the pistil
vascular plants
endoplasmic reticulum
anabolism
ovary
39. The female part of a flower composed of ovary and style and stigma and ovules
metaphase
mutation
pistil
ribosomes
40. Vacuole membrane
microfilaments
tonoplast
telophase
biosynthesis
41. Breakdown of more complex substances into simpler ones with release of energy
prokaryotes
eukoryotic cells
catabolism
DNA
42. Matching Chromosomes that are similar but not identical
homologs
nucleolus
nucleosome
ovary
43. Transport of a substance across a cell membrane against the concentration gradient
haploid
transformation
cytoskeleton
active transport
44. Double-stranded chains of proteins which give structure to the cell
facilitated diffusion
post-transcriptional processing
haploid
microfilaments
45. A cell having only one complete set of chromosomes
mutation
photolysis
haploid
lysosomes
46. Disk-like plates which are the site of photosynthesis in chloroplasts
carbon dioxide fixation
vascular plants
grana
nucleosome
47. Photosynthetic reaction in which carbon dioxide is attached to an organic compound (glucose - polysaccharides)
stamen
anther
carbon dioxide fixation
translation
48. Site of protein synthesis. Free ribosomes - float unattached; attached ribosomes - attached to the ER
ribosomes
codon
exocytosis
microtubules
49. Sequence of DNA that codes for a protein and thus determines a trait
ovary
gene
translation
metaphase
50. Have tissues made of cells that transport water and nutrients throughout the plant
organelles
vascular plants
chromatin
crossing over