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Test your basic knowledge |
Botany Basics
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. Vessels are different from traechids because _____?
transpiration
apical meristem
vessels conduct sugars - traechids conduct water
tungor
2. Cells produced by the vascular cambium do NOT include ___?
pneumatophoves
transpiration
phelloderm
pith
3. Name the 4 parts of aflower and briefly explain the process of double fertilization?
leave the cell
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
node
venus flytrap - sundew trap - pitcher of a ptcher plant - tenri of a pea plant- all of the above
4. During the light dependent reactions of photosynthesis - ____?
water molecules are split - through the energy of light - into hydrogen ions - electrons - and oxygen
rhizomes
water conduction
ovary
5. The major regions of a root tip are ____ - ___ - _____ and _____?
root cap - zone of elongation - maturation - division
strawberry
receptacle
grows back every year
6. At present the most widely accepted theory for movement of substances in the phloem is called the ____?
pressure-flow hypothesis
desert
vessel elements
stigma
7. Not a specialized leaf?
it has the seeds and all 4 parts of a flower would classify it as a fruit instead of a vegetable
Irish (white) potato
phloem
stele
8. 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?
loam
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.
vessel elements
concentration outside roots causes plant to lose h20
9. As best as you can - briefly describe the development of vascular tissue by the lateral/vascular cambium of a stem and how that results in the production of wood?
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.
region of maturation
base of grass leaves
inferior
10. Lignin is found primarily in ___?
digitalis
node
receptacle
sclerenchyma
11. Which biome has the worst 'A' horizon?
desert
bracts
into the cell
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
12. Leaves and buds are attached to the stem at the ___?
node
all of the above are correct
rhizomes
axillary bud and leaf
13. If the concentration of solutes/salts outside the plant cell is greater than the concentration on the inside - water will ____?
parenchyma
internode
terger
leave the cell
14. Pressure that develops within a living cell as a result of water entering the cell is called ____?
casperian strips
Irish potato
water conduction
tungor
15. Why is an Irish/white potato classified as a modified stem?
it has node marks all over it where branches could grow off of.
pressure-flow hypothesis
all of the above are correct
annual ring
16. Explain the process by which plants get water from the soil into the leaves?
potassium
the root hairs on the root tips absorb water into the soil through osmosis. this water travels up the roots - up the stems - and to the leaves throughout the plant by capillary action. once absored in leaves - the water leaves the plant through trans
there could've been a high concentration of nutrients - such as salt - surounding the roots making it impossible for osmosis to occur
parenchyma
17. The leaves of cacti are actually ____?
prickles
cortex
phloem
false
18. The part of the root containing the vascular tissue?
stele
transpiration
region of maturation
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.
19. When humidity is low - ___?
stem
transpiration rates can decrease
sclerenchyma
ovary
20. Differentiate between diffusion and osmosis?
pericarp
sweet potato
penetrate very deeply to underground water reservoirs
diffusion is the movement of particles from high to low concentration; osmosis is movement of water from high to low concentration
21. The osmotic response of guard cells is governed by ____ levels in the guard cells?
phloem
stele
potassium
vascular bundles
22. Stems differ from roots in ___?
having a special covering called the root cap
inferior
inferior
transpiration
23. What 8 elements are classified as major/macro elements for plant development?
CHOPKNSCa
stigma
horizon E
fibrous
24. The skin of most fruits is technically the ____?
exocarp
false
lose
sweet potato
25. Which of the following drugs is NOT obtained from leaves?
receptacle
penicilin
ovules
mycoorhizae
26. Why do most roots tend to die in soils that contain very high concentrations of salts (or fertilizer)?
vascular bundles
concentration outside roots causes plant to lose h20
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
radicle
27. Cells produced by the vascular cambium include ___?
imbition
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
traechids - vessel elements - companion cells - sieve-tube elements- all of the above
bulb
28. Cells produced by the vascular cambium do NOT include ___?
parenchyma
chollenchyma
pith
turgor pressure
29. When the calyx - corolla - and stamen of a flower are attached below the overy - the ovary is said to be ___?
bracts
superia
anther
tap - fiblous
30. When humidity is low - ____ ?
cambium
red light
inferior
transpiration rates increase
31. If the concentration of solutes inside the plant cell is greater than the concentration on the outside - water will _____ the cell?
enter
internodes
pressure-flow hypothesis
absorpion of minerals in solution
32. Sugars produced in photosynthesis are loaded intothe ___ of the leaf?
node
casperian strips
phloem
cotyledon
33. When a plant cell loses water and the cell membrane pulls away from the cell wall - the cell is said to be under going ____?
imbition
plasmolysis
into the cell
water molecules are split - through the energy of light - into hydrogen ions - electrons - and oxygen
34. The layer of chlorenchyma cells oriented to capture optimum sunlight at the top of the leaf are the ____?
upper epidermal cells
stamen; anther
K
cambium
35. Which of the following is a root with a specialized function for food storage?
strawberry
rhizomes
inferior
sweet potato
36. What obvious characteristic does a deciduous plant exhibit?
callyx/corolla
grows back every year
pericarp
axillary buds
37. This tissue (region) is present in monocot roots but absent in dicot roots?
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
modified stems
imbibition
pith
38. Explain photorespiration and how the enzyme rubisco plays a major role in that process during photosynthesis?
fig
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
manganese
the presence of nodes and internodes
39. An example of a multiple fruit would be the ___?
stigma
fig
sweet potato
penicilin
40. A farmer finds that his landin the wetbottoms during an exceptionally wet year produced a very poor crop as most of the plants died. What could've been the problem?
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41. Roots differ from stems in ___?
apical meristem
all of the above are correct
leave the cell
annual ring
42. Most cacti are __________ where the stem is responsible for the photosynthetic processes in the plant?
stigma
cotyledon
traechids - vessel elements - companion cells - sieve-tube elements- all of the above
modified stems
43. In a mature - woody dicot stem - the tissue between the xylem and the phloem is the ___?
guard cells
ovary
vascular cambium
eristems
44. Which soil horizon is the most important agriculturally?
horizon E
modified stems
exocarp
transpiration
45. The dermal tissues of leaves have wha specialized cells to regulate gas exchange?
rain
vascular cambium
the presence of nodes and internodes
guard cells
46. Not a specialized leaf?
ovary
rhizomes
guard cells
Irish potato
47. Plants maintain a constant flow of water from the roots to the leaves through a process very critical to life on land called ____?
turgor pressure
transpiration
vessels
horizon E
48. Actively dividing cells can be found in ___?
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.
grasslands
annual ring
eristems
49. Which of the following is a specialized leaf?
rhizomes
venus flytrap - sundew trap - pitcher of a ptcher plant - tenri of a pea plant- all of the above
base of grass leaves
vascular bundles
50. Flowers are usually attached to a special structure at the end of a stem or peduncle called a ___?
receptacle
rhizomes
endodermis
venus flytrap - sundew trap - pitcher of a ptcher plant - tenri of a pea plant- all of the above