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Test your basic knowledge |
Botany Basics
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Study First
Subject
:
science
Instructions:
Answer 50 questions in 15 minutes.
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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 discrete patches of xylem and phloem found in herbaceous dicot stems are called ___?
photo respiration occurs usually in times of drought. limited water forces the plant to close stomata - therefore blocking co2. with lo concentrations of co2 and high concentrations of 02 - the enzyme rubisco starts to bind 02 instead of co2. this pr
vascular bundles
transpiration rates can decrease
more stomata on the upper surface
2. Which is a type of epidermal cell?
guard cell and root hair
cassava
bulb
region of maturation
3. Why do most roots tend to die in soils that contain very high concentrations of salts (or fertilizer)?
having a special covering called the root cap
If there is a higher concentration of salts outside of the root - then water will not move inside the roots against the concentration gradient. the roots will dehydrate and eventually die
annual ring
transpiration
4. The initial step in the germination of a seed is called ____?
imbibition
antenna pigments
potassium
enter
5. At present the most widely accepted theory for movement of substances in the phloem is called the ____?
pressure-flow hypothesis
root hairs
base of grass leaves
rain
6. Specialized epidermal cells that increase the surface area for absorption of water are ____?
root hairs
mychorizea
annuals
cortex
7. Roots differ from stems in ___?
bracts
modified stems
pollen:stigma
all of the above are correct
8. The spines of cacti are specially adapted to perform 2 imp't functions for the plant - transpiration and photosynthesis. True or false?
false
the presence of nodes and internodes
water molecules
exocarp
9. Explain why a cucumber or tomato really should be referred to as a fruit?
inferior
cotyledon
it has the seeds and all 4 parts of a flower would classify it as a fruit instead of a vegetable
vascular bundles
10. Which biome has the best 'A' horizon?
grasslands
diffusion is the movement of particles from high to low concentration; osmosis is movement of water from high to low concentration
pith
chloroplasts
11. This structure in the ovary of a flower is responsible for producing a seed?
vascular cambria
ovule
rhizomes
exocarp
12. A conspicuous organelle at the light microscope level in cells of the palisade mesophyll would be ___?
chloroplasts
absorpion of minerals in solution
phloem
horizon E
13. In addition to anchoring a plant - roots usually function directly in which of the following processes?
vascular bundles
absorpion of minerals in solution
vascular bundles
aerobic
14. The areas between the location of leaf attachments on the stem are called ___?
internodes
root hairs
potassium
auxillary
15. This cell type is important in monocot and dicot roots by helping to regulate what gets into the ___?
stolon/runner
superia
receptacle
endodermis
16. Most cacti are __________ where the stem is responsible for the photosynthetic processes in the plant?
modified stems
grasslands
cambium
mitochondria - chemiosmosis
17. The part of the flower where seeds are produced is called the ___?
1
ovary
vascular cambium
imbibition
18. Pollen adheres to a sticky portion of the flower called the ____?
stigma
vascular cambium
it has node marks all over it where branches could grow off of.
enter
19. A primary function of traechids is ___?
cambium
prickles
water conduction
transpiration rates decrease
20. Because of greater light intensity and heat absorption on the upper surface of the leaf - the lower surface has ____?
enter
K
the sepal - petal - stamen - pistil are the 4 main parts. in double fertilization - the pollen grain produces 2 sperm cells which travel as pollen to the stigma and down the style ofthe pistil to the ovary. One will fertilize an egg in the ovary whil
more stomata on the upper surface
21. Which of the following is a critical part of a seed providing nutrition for the embryo?
node
transpiration
annuals
cotyledon
22. An example of an aggregate fruit would be the ___?
phloem
strawberry
potassium
phloem
23. Stems differ from roots in ___?
endodermis
traechids - vessel elements - companion cells - sieve-tube elements- all of the above
having a special covering called the root cap
turgor pressure
24. The discrete patches of xylem and phloem found in monocot stems are called ____?
the vascular cambium produces both secondary xylem and secondary phloem - or vascular tissue. The secondary xylem is the wood in dicot plant and lignon surrounds it for support.
major elements vegetation requires for growth (macronutrients)
vascular bundles
exocarp
25. A plant with flowers containing stamens but no carpels would be a ___ plant with ____ flowers?
cotyledon
the vascular cambium produces both secondary xylem and secondary phloem - or vascular tissue. The secondary xylem is the wood in dicot plant and lignon surrounds it for support.
dioecious; staminate
concentration outside roots causes plant to lose h20
26. You have a crop that is not doing well and you add a lot of fertilizer to help it out but this causes the crop to do worse. ExplaIn what has happened?
annual ring
concentration outside roots causes plant to lose h20
vessel elements
it has node marks all over it where branches could grow off of.
27. Cells produced by the vascular cambium do NOT include ___?
phelloderm
receptacle
casperian strips
sclerenchyma
28. Which of the following is a specialized root for storage?
casperian strips
bulb
sclerenchyma
rhizomes
29. Leaves and buds are attached to the stem at the ___?
horizon E
cortex
node
radicle
30. Most of the flesh of pomes comes from the ____?
the sepal - petal - stamen - pistil are the 4 main parts. in double fertilization - the pollen grain produces 2 sperm cells which travel as pollen to the stigma and down the style ofthe pistil to the ovary. One will fertilize an egg in the ovary whil
vessels
manganese
callyx/corolla
31. Plants maintain a constant flow of water from the roots to the leaves through a process very critical to life on land called ____?
ovules
guard cells
transpiration
mychorizea
32. Photosystem pigments that function in gathering and passing light energy to reaction-center molecules are called ___?
potassium
antenna pigments
all of the above are correct
NADPH
33. Most of the water that enters a plant via the roots exits the same plant by the process of ____?
pericarp
cassava
pneumatophoves
transpiration
34. Specialized cells in the vascular tssue of a root responsible for initiating lateral root growth are _____ cells?
absorpion of minerals in solution
all of the above are correct
h20+co@-->chlorophyl/light-->glucose (sugar) + o2
apical meristem
35. Flowering plants that complete their lie cycles in a single season are called ___?
annuals
dioecious; staminate
visible light is good because it's not as intense so that it will burn the plant - but it is still intense enough to produce plenty of energy
photo respiration occurs usually in times of drought. limited water forces the plant to close stomata - therefore blocking co2. with lo concentrations of co2 and high concentrations of 02 - the enzyme rubisco starts to bind 02 instead of co2. this pr
36. When humidity is low - ____ ?
guard cell and root hair
plasmolysis
transpiration rates increase
pericarp
37. Which soil horizon is the most important agriculturally?
fig
vascular cambium
receptacle
horizon E
38. Strawberries are an example of what kind of modified stem?
phloem
cassava
stolon/runner
root hairs
39. Root hairs are found in the region of the root called the ____?
stele
concentration outside roots causes plant to lose h20
potassium
region of maturation
40. If the concentration of solutes inside the plant cell is greater than the concentration on the outside - water will _____ the cell?
there could've been a high concentration of nutrients - such as salt - surounding the roots making it impossible for osmosis to occur
fig
conduction and absorption
enter
41. The fungi symbiotically associated with roots are called ___?
transpiration
transpiration rates increase
mychorizea
grows back every year
42. The skin of most fruits is technically the ___?
guard cells
taproots
exocarp
cotyledon
43. Not a specialized stem?
anther
cassava
bracts
diffuse out
44. Wood cells are composed primarily of cellulose and ___?
vessels
lignin
pneumatophoves
to open - potassium will enter the guard cell. then the guard cell will swell and attract water to the stomata - or area of high concentration. Once the plant has enough water - potassium will diffuse out - the guard cells will shrink - and finally c
45. Which of the following is a root with a specialized function for food storage?
bracts
transpiration rates decrease
sweet potato
stele
46. Briefly describe the development of vascular tissu by the lateral/vascular cambium of a stem and how that results in the production of wood?
oxygen
mitochondria - chemiosmosis
CHOPKNSCa
The cambium is a ring of undifferentiated cells. Once a cell moves to the outside of the cambium it becomes phloem. When the cells move into the inside of the cambium - the cells become xylem. Xylem cells die - harden and begin expanding with fresh x
47. Pollen adheres to a sticky portion of the flower called the ___?
conduction and absorption
photo respiration occurs usually in times of drought. limited water forces the plant to close stomata - therefore blocking co2. with lo concentrations of co2 and high concentrations of 02 - the enzyme rubisco starts to bind 02 instead of co2. this pr
terger
stigma
48. Which of the following woud NOT be a part of the vasulcar stele?
cortex
mychorizea
internodes
h20+co@-->chlorophyl/light-->glucose (sugar) + o2
49. The 'eyes' of the Irish potato are actually ____?
axillary buds
digitalis
aerobic
ovules
50. These 'showy' modified leaves are found at the base of flowers and usually draw attention to the smaller real flowers?
tap - fiblous
bracts
the sepal - petal - stamen - pistil are the 4 main parts. in double fertilization - the pollen grain produces 2 sperm cells which travel as pollen to the stigma and down the style ofthe pistil to the ovary. One will fertilize an egg in the ovary whil
taproots
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