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IB Biology Plant Science Review Flashcards | StudBud
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IB Biology Plant Science Review
IB Biology Plant Science Review
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A quiz to review plant science
Flashcards
39 cards
F
Practice quiz
P
Host live
L
Questions
39
Answers
1
What is
not
a characteristic of xerophytes?
Reduced leaves
Large numbers of stomata
Stomata in pits
Thick cuticle
2
Which process is directly assisted by flowering?
Fertilization
Seed dispersal
Pollination
Germination
3
How are fluids transported in the xylem?
Down the plant only
Up the plant during the day and stationary at night
Up and down the plant
Up the plant only
4
Why does increased light intensity increase the rate of transpiration?
It causes guard cells to close
It causes water molecules to move more quickly
It increases photosynthesis
It lowers the concentration gradient between air and leaves
5
In what direction does water always flow?
From high pressure to low pressure
From low pressure to high pressure
6
What structure is indicated by the letter X?
Anther
Ovary
Style
Stigma
7
What term describes the ability of a cell to differentiate into any type of tissue?
Totipotency
Omnipotency
Impotency
Pluripotency
8
Where are source cells found in photosynthesizing plants?
Fruits
Leaves
Roots
Flowers
9
What type of transport is used to move sucrose into the phloem from source cells?
Facilitated diffusion
Active transport
Osmosis
Simple diffusion
10
What type of transport is used to absorb mineral ions from the soil into the roots?
Osmosis
Ligand-gated ion channels
Active transport
Simple diffusion
11
What treatment is most likely to lead to germination?
Increasing light intensity
Soaking the seeds in gibberellins
Dehydrating the seeds
Increasing CO2 concentration
12
Water is transported from the roots to the xylem. Which route moves water through cell walls?
Apoplastic route
Symplastic route
13
What type of tissue is indicated by the letter "Y"?
Pith
Phloem
Xylem
Ground tissue
14
Which is
not
an adaptation that enables the roots to absorb water and ions more efficiently?
Root hairs
Branching and lateral growth
A waxy cuticle
Mycorrhizae
15
What structure is indicated by the letter X?
Ovary
Stigma
Style
Anther
16
Will a short-day plant flower if it is briefly exposed to light during the dark period?
It will flower
It will not flower
17
In flowering plants, which helps seed dispersal?
Pollen
Bees
Mammals
Germination
18
What structure is indicated by the letter X?
Stigma
Ovule
Ovary
Anther
19
What generates new cells in plants?
Apical and lateral meristems
Apical meristems only
Lateral meristems only
Phloem
20
What type of cell division occurs in meristems?
Binary fission
Meiosis
Mitosis
21
What substance is identified by the letter "X"?
Companion cells
Cell walls
Lignin
Sieve plates
22
Where do auxins accumulate in the stem when a light shines on one side of the plant?
In the shoot tip
On the shaded side of the plant stem
On the light side of the plant stem
23
Which of the following characteristics helps xylem withstand low air pressures?
Thin layers of cellulose
Lignin and thick layers of cellulose
Many chloroplasts
Large central vacuoles
24
What type of vascular tissue is used to transport water and dissolved mineral ions?
Phloem
Ground tissue
Xylem
Meristems
25
What conditions will cause the highest rate of transpiration in a well-watered plant?
Windy, hot, cloudy and humid
Hot, humid with bright sunshine and still air
Low humidity, hot, bright sunshine and windy
Windy, bright sunshine, humid and cool
26
Where are auxins produced in plants?
In the lateral buds
In the shoot tip
In the leaves
In the stem
27
Which choice correctly describes gas exchange in plants due to photosynthesis?
Carbon dioxide is absorbed, oxygen is released
Nitrogen is absorbed, carbon dioxide is released
Oxygen is absorbed, carbon dioxide is released
Oxygen is absorbed, nitrogen is released
28
What openings enables gases to be exchanged through the leaves of plants?
Guard cells
Plasmodesmata
Stomata
Vacuoles
29
Which meristem causes development of the vascular tissue?
Protoderm
Leaf primordium
Ground meristem
Procambium
30
What direction does the phloem transport materials?
Up and down the plant all the time
Up the plant only
Up the plant during the day and down the plant at night
Down the plant only
31
What two properties of water enable transport of water through the xylem?
It has cohesion and adhesion
It has a high boiling point
It has a high specific heat capacity
It's a universal solvent
32
Which type of vascular tissue is living?
Neither xylem nor phloem
Xylem only
Xylem and phloem
Phloem only
33
What controls the flowering process in long-day plants?
Pr is converted by red light to Pfr, promoting flowering
Pfr is converted by red light to Pr, inhibiting flowering
Pr is converted by red light to Pfr, inhibiting flowering
Pfr is converted by red light to Pr, promoting flowering
34
What causes movement of water through the xylem?
Evaporation of water from leaves
Gravity
Active transport in the root tissue
Active translocation
35
How do auxins affect cells in the stem of plants?
It inhibits cell elongation
It causes cell division
It encourages lateral growth
It causes cell elongation
36
In what direction is sucrose transported during translocation?
From fruits to leaves
From source to sink
From sink to source
37
Which process starts the germination of a starchy seed?
Absorption of water
Production of amylase
Production of gibberellin
Maltose is converted to glucose
38
Which type of tropism refers to the growth of a stem toward a light?
Gravitropism
Geotropism
Thigmotropism
Phototropism
39
In what sequence do the following processes occur?
Seed dispersal → pollination → fertilization
Pollination → fertilization → seed dispersal
Seed dispersal → fertilization → pollination
Fertilization → pollination → seed dispersal
