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Test your basic knowledge |
Botany Test
Start Test
Study First
Subject
:
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. In double fertilization - one sperm cell fertilized an egg cell - What does the other sperm cell fertilize?
polar nuclei
multiple
mangrove
40x
2. Cladifils- modified stems that look like leaves - all parts are photosynthetic
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3. Seeds are not protected by fruit and they do not have flowers - do not have shell around seeds - reproduce by releasing pollen into the air to make available to the ovule in the megaspores - causing fertilization
pasteurization
gymnosperms
welwichsia
protein
4. What cell undergoes meiosis?
NOT a sperm - microspore - or egg cell
carbon dioxide
potato
nitrogenous base
5. What is NOT a function of the vacuole?
synthesis of proteins
protein
resonance
dehiscent
6. Seedless - multicellular - and terrestrial - have a vascular system - reproduce by spreading spores that are found on the underside of mature leaves.
pairs of chromosomes that each carry an allele for a given trait
translation
carbon dioxide
ferns
7. Where in the chloroplast do protons accumulate - resulting in an electrochemical gradient which drives ATP-synthase?
resonance
lumen
-water vapor -oxygen -carbon dioxide
multiple
8. What is considered part of the protoplast?
palisade mesophyll
mangrove
-organelles -cytosol -nucleus
interrupt the dark period with several minutes of light
9. What causes diffusion of gases to occur?
both gymnosperms and angiosperms
chlorophyll-A
orchids
andom particle movement results in a net movement from high to low concentration
10. During which phase of the cell cycle does DNA replication occur?
protein
S-phase
lack of available oxygen
artificial selection
11. What are homologous chromosomes?
pairs of chromosomes that each carry an allele for a given trait
polar nuclei
anther
the water potential is higher in the potato than the sugar solution
12. Change in gene frequency in a gene population over time.
mRNA
40x
bud scale scars
evolution
13. What cell undergoes meiosis?
butcher's broom
krebs cycle
radial arrangement
NOT a sperm - microspore - or egg cell
14. What structure is MOST important in generating root pressure?
endodermis
potato
pairs of chromosomes that each carry an allele for a given trait
maternal sporophyte - gametophyte - daughter sporophyte
15. You can determine the age of a woody branch by counting these
radial arrangement
bionary fission and asexually
bud scale scars
heartwood
16. Change in gene frequency in a gene population over time.
pasteurization
evolution
starch
protein
17. NO vascular tissue - NO roots - have modified photosynthetic tissue to help it absorb carbon dioxide without losing too much water - can survive in variety of environments - seedless - and commonly seen as mosses - hornworts - and liverworts.
pasteurization
cone
absorption of water
bryophytes
18. What is the function of the cortex in a root?
storage
S-phase
telophase-I
endodermis
19. What are adenine - guanine - thymine - cytosine?
abscistic acid
pasteurization
nitrogenous base
bryophytes
20. Composite organisms consisting of a symbiotic organism composed of a fungus with a photosynthetic partner - can be used as a natural fertilizer
andom particle movement results in a net movement from high to low concentration
translation
lichens
accessory
21. What type of RNA has a codon?
NOT a sperm - microspore - or egg cell
seed
mRNA
endodermis
22. What is NOT a function of the vacuole?
synthesis of proteins
absorption of water
starch
cone
23. What plant tissue functions in conducting water from the roots to the leaves?
carbon dioxide
structural support
prophase
xylem
24. If an ovule is fertilized - what will it develop into?
vascular cambium
starch
seed
fungi
25. What is a function of the epidermis?
fuzzy plant
-regulate water loss -regulate gas exchange -allow light to enter the leaf
40x
NOT a sperm - microspore - or egg cell
26. Info. carrying molecule - single stranded
RNA
evolution
versions of a gene
2
27. Individuals best adapted to their environment reproduce offspring. it requires variation - heritability - and selection.
pairs of chromosomes that each carry an allele for a given trait
xylem
both gymnosperms and angiosperms
natural selection
28. What tissue can be found in a root but not in a stem?
pericycle
water
mangrove
effects of rising carbon dioxide
29. The ocular lens of a microscope is 10x - and the objective lens is 4x. What is the total magnification of the microscope?
-organelles -cytosol -nucleus
40x
cone
potato
30. Bugs crawl into 'pitchers' - tiny hairs keep them from getting out - plant breaks down enzymes - and uses nitrogen. lives in places where nitrogen is limited.
pitcher plant
interrupt the dark period with several minutes of light
bud scale scars
biome
31. What are harmful effects of bacteria?
cytokinnin
nucleus
cheese - yogurt - pharmaceuticals
pathogens
32. What phenomena explains how a photon can strike any chlorophyll molecule in the antennal complex and still reach the reaction center?
carbon dioxide
starch
radial arrangement
resonance
33. What is considered part of the protoplast?
absorption of water
-organelles -cytosol -nucleus
effects of rising carbon dioxide
chlorophyll-A
34. What hormone stimulates cell division and may interfere with the function of auxin - leading to the development of 'witches-broom'?
cytokinnin
pericycle
provide nutrients for a developing embryo
bud scale scars
35. What is the main function of the roots of a corn plant?
absorption of water
transcription
both gymnosperms and angiosperms
-water vapor -oxygen -carbon dioxide
36. How does DNA replication take place?
cone
starch
2 strands separate - 2 new strands are produced - each new DNA molecule contains 1 old strand
bryophytes
37. What hormone functions in stomatal closure and can be used to induce dormancy in cultivated plants?
S-phase
dehiscent
bionary fission and asexually
abscistic acid
38. 3 part molecule with a sugar - phosphate group - and nitrogenous base - carries genes
pyruvate
ferns
radial arrangement
DNA
39. What separates during meiosis-II
artificial selection
cytokinnin
chlorophyll-A
sister chromatids
40. What organelle contains DNA?
nucleus
polar nuclei
biome
bryophytes
41. Enzymes are an example of what type of molecule?
bionary fission and asexually
protein
vascular cambium
resonance
42. What are beneficial products made from bacteria?
nucleus
natural selection
cheese - yogurt - pharmaceuticals
ethylene
43. An ecosystem with similar climatic conditions on earth - such as communities of plants - animals - and soil organisms
cone
gymnosperms
biome
accessory
44. In double fertilization - one sperm cell fertilized an egg cell - What does the other sperm cell fertilize?
eukaryotes
pericycle
lumen
polar nuclei
45. Lives in desert - leaves have waxy cuticle - succulent - holds onto water
osmosis
ghost plant
maternal sporophyte - gametophyte - daughter sporophyte
endodermis
46. A gymnosperm - lives in the desert for up to 3000 years - only grows 2 leaves - 5 feet across - they receive 1 inch of lower of rainfall per year - roots can grow under the soil at least a mile.
welwichsia
orchids
ground tissue
leaf
47. Vascular and seed bearing
lipids
both gymnosperms and angiosperms
tRNA
lichens
48. What is a function of the epidermis?
-regulate water loss -regulate gas exchange -allow light to enter the leaf
eukaryotes
ethylene
krebs cycle -glycolysis
49. What phenomena explains how a photon can strike any chlorophyll molecule in the antennal complex and still reach the reaction center?
NOT a sperm - microspore - or egg cell
resonance
mangrove
lumen
50. Transferring of the information from the DNA into the language of the mRNA.
mangrove
chlorophyll-A
translation
bud scale scars