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IB Biology - Topic 9 - Plant Biology Flashcards | StudBud
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IB Biology - Topic 9 - Plant Biology
IB Biology - Topic 9 - Plant Biology
20 terms
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#IBBiology #HLRevision #PlantBiology
Flashcards
20 cards
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Practice quiz
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Host live
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Questions
20
Answers
1
What are some adaptations of flowering plants which live in saline soils?
Ability to remove salt, long tap roots, many stomata
Long tap roots, succulent leaves, a large leaf surface area
Water storage tissue, thick waxy cuticle, reduced leaf area
Water storage tissue, thick waxy cuticle, many stomata
2
Which is true for lateral meristems?
Forms tree bark
Primary growth in woody plants
Occur at the tips of the stem and root
Causes secondary growth by adding vascular tissue
3
What are Xerophytes?
Plants which grow only in or on water
Plants needing only a moderate amount of water
Plants which can be found anywhere
Plants which live in permanently dry conditions
4
What is translocation?
When organic foods move through the phloem
When organic foods move through the xylem
When water moves through the xylem
When water moves through the ploem
5
What is auxin responsible for in plants?
Gene expression
Flowering
Leaf development
Root and shoot growth
6
What is micro-propagation used for?
To pollinate non-flowering plants
To pollinate flowering plants
To produce large numbers of identical plants
To make crops pest resistant
7
Define tropism
The transport of the products of photosynthesis
The loss of water vapour
Plant responses to directional external stimuli
A type of cellulose found in plants
8
Which of the following could be used to induce greenhouse plants to flower out of season?
Cutting the shoot tips
Darkening the greenhouse to decrease the length of the day
Lighting the plants to increase the length of the day
Planting the seeds in a different season
9
How is water carried by the transpiration stream?
Cohesion, adhesion and transpiration pull
Adhesion, cohesion and active transport
Active transport, adhesion and transpiration pull
Transpiration pull and cohesion only
10
Which of the following tissues can be both a source and a sink of sugar?
Meristems
Cotyledons
Photosynthesising mature leaves
Fruits
11
What are involved in the transport of materials from photosynthetic cells to phloem vessels?
Protein pumps and sieve plates
Cell walls and sieve plates
Sieve plates and mitochondria
Protein pumps and mitochondria
12
Which technical developments have aided in the understanding of phloem transport?
Electron microscopes and x-ray diffraction
Light microscopes and x-ray diffraction
Radioactive labeling and electron microscopes
Radioactive labeling and light microscopes
13
Which most accurately describes the relationship between angiosperms and pollinators?
Mutualism
Producer and consumer
Commensalism
Symbiosis
14
Which of the following have stem tubers?
Corn
Carrots
Onions
Strawberries
15
The phytochromes, PR and PFR can control the time of flowering because...
Pr concentrations can affect gene expression but Pfr doesn't
Pfr concentrations can affect gene expression but Pr doesn't
They are both formed at night
They inhibit each other
16
What is structure D?
Radicle
Testa
Micropyle
Plumule
17
Which is the correct sequence for the development of primary xylem from meristematic tissue?
Mitosis, meiosis, differentiation
Gene expression, lignification, meiosis
Mitosis, gene expression, differentiation
Lignification, gene expression, differentiation
18
What is transpiration?
The loss of water vapor from an animal
The loss of water vapor from only the leaves of plants
The loss of water vapor from the leaves and stems of plants
The loss of water from only the stems of plants
19
Which structure is the filament?
A
G
B
H
20
What is the epidermis?
The surface layers of a plant and the cuticle
A longitudinal set of tubes
The root system of a plant
A type of lateral meristem
