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A #science quiz covering #plant anatomy and physiology for #college introductory #biology
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
Where are apical meristems found?
At the top of the shoots and the tips of the roots
In concentric circles around the pith of a stem
At the nodes of a branch
Only at the tips of the roots
2
Through hormonal signaling, an apical meristem inhibits growth of nearby axillary meristems:
Intercalary Meristem
Cork Cambrium
Apical Dominance
Axillary Dominance
3
What is one benefit of asexual reproduction for plants?
More attractive to pollinators
Additional protection from diseases in population
Initial offspring are hardier
Longer dispersal of offspring
4
Two steps of cell growth:
Cell division and nutrient uptake
Cell division and cell enlargement/elongation
Cell division and apoptosis
Cell division and cell differentiation
5
Dendrochronology:
The study of how photoperiod affects tree fruiting times
The study of pollen layers
The study of plant "brains"
The study of tree rings to determine dates
6
Which plant hormone causes the triple response to mechanical stress?
Jasmonates
Auxin
Cytokinens
Ethylene
7
The triple response to mechanical stress:
Horizontal growth, formation of cork, phloem expansion
Stem elongation, stem thickening, horizontal growth
Stem elongation, greening, horizontal growth
Stem thickening, leaf unfurling, greening
8
What is required to start the process of de-etiolation (greening)?
Gravity
Light
Water
Macronutrients
9
There is ample scientific evidence that GMOs have resulted in increased allergies.
False
True
10
How do plants avoid inbreeding?
Use of pollinators
All of the above
Dioecious plants
Morphological differences in flowers
11
How does phototropism occur?
Radiation induced cell death on one side of the plant
Muscle-like fibers stretch to the warmth of the sun
Asymmetrical cell elongation
Water loss
12
What is a microphyll?
A leaf with branching vascular tissue that can vary in size
A small leaf with one unbranched vein of vascular tissue
A nutrient needed in large amounts
A nutrient needed in small amounts
13
Which type of plant reproduces more than once in its lifetime?
Annual
Perennial
Biennial
14
A channel protein that passively transports water across a plasma membrane:
Cryptochrome
Aquaporin
Cohesion protein
Pytochrome
15
Which morphogenesis hypothesis states that cell fate is determined early in development?
Position-based
Lineage-based
16
In which type of solution would a plant cell be healthiest?
Isotonic
Hypertonic
Hypotonic
17
Intercalary meristems are:
Areas of primary growth
An adaptation to deal with herbivory
Found in grasses
All of the above
18
Which experiences indeterminate growth?
Seed width
Flower length
Tree width
Fruit size
19
What is a meristem?
The xylem and phloem part of a stem
Mature stems from previous years' growth on a twig
A location of plant growth, where the stem cells are found
A stem found in the middle of a plant
20
What is a macronutrient?
An element that is large, but not essential
An element that is essential in large amounts
An element that is essential and has a large atomic mass
An element that is essential in small amounts
21
Process by which cells with the same genes become different from each other:
Cell elongation
Cell differentiation
Growth
Morphogenesis
22
Vascular cambium:
Results in the production of the zone of elongation in roots
Produces thick, outer waxy layer of tree (secondary growth)
Adds xylem and phloem (secondary growth)
Results in primary growth of shoots
23
Growth in response to gravity in plants:
Geotropism
Gravitropism
Thigmotropism
Phototropism
24
Asexual reproduction of seeds is called:
Fragmentation
Vegetative Propagation
Double Fertilization
Apomixis
25
Which plant hormone is important for phototropism?
Auxin
Ethylene
Giberellins
ABA
