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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. What organelle contains DNA?
natural selection
prophase
nucleus
pasteurization
2. During which phase of the cell cycle does DNA replication occur?
S-phase
starch
abscistic acid
interrupt the dark period with several minutes of light
3. What hormone is most important in the ripening of fruits?
nitrogenous base
RNA
ethylene
cheese - yogurt - pharmaceuticals
4. What type of RNA has a codon?
resonance
effects of rising carbon dioxide
osmosis
mRNA
5. What pigment absorbs energy and can emit an electron in photosynthesis?
xylem
synthesis of proteins
chlorophyll-A
pericycle
6. What hormone stimulates cell division and may interfere with the function of auxin - leading to the development of 'witches-broom'?
chlorophyll-A
leaf
cytokinnin
storage
7. How many sperm cells does each pollen grain typically carry?
bryophytes
RNA
orchids
2
8. Enzymes are an example of what type of molecule?
cytokinnin
fuzzy plant
protein
bryophytes
9. Which substances pass through the open stomata of a leaf?
nitrogenous base
-water vapor -oxygen -carbon dioxide
gymnosperms
andom particle movement results in a net movement from high to low concentration
10. In double fertilization - one sperm cell fertilized an egg cell - What does the other sperm cell fertilize?
translation
polar nuclei
translation
multiple
11. What are adenine - guanine - thymine - cytosine?
xylem
lumen
nitrogenous base
lichens
12. What best describes a dry fruit which opens at maturity?
endodermis
tRNA
synthesis of proteins
dehiscent
13. During which phase of mitosis does the nuclear envelope disappear?
prophase
krebs cycle
effects of rising carbon dioxide
chloroplasts
14. What BEST describes plant hormones?
hormones are produced in a part of a plant and act in another part.
vascular cambium
welwichsia
ethylene
15. What cell undergoes meiosis?
heterozygous
NOT a sperm - microspore - or egg cell
fuzzy plant
abscistic acid
16. Transferring of the information from the DNA into the language of the mRNA.
cyanobacteria - green algae - red algae
chloroplasts
translation
2
17. Info. carrying molecule - single stranded
RNA
versions of a gene
evolution
electron transport chain
18. What type of RNA has a codon?
lumen
mRNA
cyanobacteria - green algae - red algae
zone of maturation
19. Lives in california - it is a lily - waxy - thin - sharp leaves to stop water loss - holds water for up to 2 years.
krebs cycle
iris diaphragm
bocarnia
seed
20. What separates during meiosis-II
accessory
sister chromatids
xylem
palisade mesophyll
21. What best describes a dry fruit which opens at maturity?
dehiscent
interrupt the dark period with several minutes of light
artificial selection
structural support
22. What plant tissue functions in conducting water from the roots to the leaves?
osmosis
2 strands separate - 2 new strands are produced - each new DNA molecule contains 1 old strand
evolution
xylem
23. Which substances pass through the open stomata of a leaf?
nitrogenous base
abscistic acid
bryophytes
-water vapor -oxygen -carbon dioxide
24. What type of RNA has an anticodon?
orchids
both gymnosperms and angiosperms
tRNA
xylem
25. Three generations of gymnosperms
translation
starch
anther
maternal sporophyte - gametophyte - daughter sporophyte
26. A tissue in Which mitosis takes place - giving rise to the secondary xylem.
lack of available oxygen
heartwood
vascular cambium
cytokinnin
27. What process would be used by a plant to move potassium ions across a membrane AGAINST a concentration gradient?
active transport
chlorophyll-A
water
biome
28. Don't have roots or leaves - and are not producers - do not photosynthesize - and have cell walls made out of chitlin.
fuzzy plant
krebs cycle -glycolysis
fungi
lichens
29. What is a function of the epidermis?
-regulate water loss -regulate gas exchange -allow light to enter the leaf
synthesis of proteins
fungi
multiple
30. What are harmful effects of bacteria?
maternal sporophyte - gametophyte - daughter sporophyte
pathogens
cheese - yogurt - pharmaceuticals
resonance
31. Have a nucleus - and a cell membrane
nucleus
eukaryotes
osmosis
cone
32. What is a product of the biochemical reactions of photosynthesis?
starch
prophase
dehiscent
multiple
33. If an ovule is fertilized - what will it develop into?
seed
NOT a sperm - microspore - or egg cell
the water potential is higher in the potato than the sugar solution
cyanobacteria - green algae - red algae
34. What are beneficial products made from bacteria?
cyanobacteria - green algae - red algae
prokaryotes
cheese - yogurt - pharmaceuticals
the water potential is higher in the potato than the sugar solution
35. Vascular and seed bearing
endodermis
phytochrome
both gymnosperms and angiosperms
radial arrangement
36. What BEST describes plant hormones?
nucleus
eukaryotes
tRNA
hormones are produced in a part of a plant and act in another part.
37. What is the primary function of collenchyma cells?
natural selection
structural support
mobility by cilia or flagella - do not have roots - and are not adapted to dry land
carbon dioxide
38. Where in a plant is the water potential lowest?
phytochrome
leaf
abscistic acid
cyanobacteria - green algae - red algae
39. Which tissue system occurs throughout the plant - is made up of parenchyma - collenchyma - and sclerenchyma cells - and functions in storage - structural support - and metabolism?
ground tissue
abscistic acid
evolution
pyruvate
40. 3 part molecule with a sugar - phosphate group - and nitrogenous base - carries genes
chloroplasts
carbon dioxide
DNA
structural support
41. Cladifils- modified stems that look like leaves - all parts are photosynthetic
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42. Info. carrying molecule - single stranded
RNA
dehiscent
welwichsia
chloroplasts
43. Lives in desert - leaves have waxy cuticle - succulent - holds onto water
ghost plant
chloroplasts
starch
ground tissue
44. Where in the chloroplast do protons accumulate - resulting in an electrochemical gradient which drives ATP-synthase?
fungi
krebs cycle
lumen
artificial selection
45. What is considered part of the protoplast?
-organelles -cytosol -nucleus
welwichsia
orchids
natural selection
46. What pigment absorbs energy and can emit an electron in photosynthesis?
chlorophyll-A
mobility by cilia or flagella - do not have roots - and are not adapted to dry land
2
krebs cycle
47. What is the primary function of collenchyma cells?
anaphase
phytochrome
structural support
effects of rising carbon dioxide
48. An ecosystem with similar climatic conditions on earth - such as communities of plants - animals - and soil organisms
fungi
biome
leaf
nitrogenous base
49. Heating up bacteria until it is harmless and cannot function.
accessory
bud scale scars
provide nutrients for a developing embryo
pasteurization
50. 'Alleles' are best described as...
DNA
prophase
versions of a gene
RNA