stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
IB HL Plant Biology Flashcards | StudBud
Explore
/
IB HL Plant Biology
IB HL Plant Biology
35 terms
·
StudBud Administration
·
2,078 plays
IB Biology Plant Biology HL Quiz
Flashcards
35 cards
F
Practice quiz
P
Host live
L
Questions
35
Answers
1
What closes stomata?
Humidity
Hot temperature
Both A and B
Wind
2
Active uptake of mineral ions in the roots causes absorption of water by
Diffusion
Osmosis
Concentrated Gradient
Passive Transport
3
True or False: Guard cells open and close stomata to regulate transpiration
True
False
4
True or False: Dicotyledonous plants have apical meristems
True
False
5
How is food stored in plants?
Glycogen
Sucrose
Glucose
Starch
6
What is the role of the phloem in transport?
Distributes sugar and nutrients through the plant
Both A and B
Takes wastes into the soil
Neither A or B
7
Why is the cotyledon a necessary part of the seed?
The embryo has no sunlight
It is necessary for photosynthesis
It is needed for pollination
It softens the seed coat
8
What causes movement of water through xylem?
Active transport in the root tissue
Evaporation of water from leaves
Gravity
Active Translocation
9
Why are there usually more palisade mesophyll cells on the upper surface of the leaf?
Less water is lost
More light is trapped
It makes the leaf stronger
They are closer to the veins
10
Why do flowers have such colorful petals?
To attract animals for pollination
To trap insects
To hide pollen
To scare away predators
11
Which conditions are usually needed for a seed to germinate?
The seed shrinks
The seed gains heat
Enough water exists
All of the answers are correct
12
Which of the following are features of the dicotyledonous plants?
All of the answers are correct
Flower parts in groups of three
Parallel leaf veins
Two cotyledons
13
Which sequence is correct in the reproduction of a flowering plant?
Seed dispersal, Pollination, Fertilization
Pollination, Fertilization, Seed dispersal
Seed dispersal, Fertilization, Pollination
Fertilization, Pollination, Seed dispersal
14
Which of the following is not a way seeds are dispersed?
Animals
Sun
Water
Wind
15
In what direction does the phloem transport materials?
Up the plant only
Up the plant at night and down the plant during the day
Up and down the plant all the time
Down the plant only
16
Apical Meristems ___
is responsible for the elongation of roots and stems
All of these answers are correct
are found at the tips of roots and shoots
allows the formation of new leaves and flowers
17
What property of water allows transport in the xylem vessels?
Osmosis
Cohesion
High polarity
Adhesion
18
Undifferentiated cells in the meristems of plants allow for
transpiration
meiosis
gas exchange in leaves
indeterminate growth
19
What is used to load organic compounds into phloem sieve tubes at the source?
Diffusion
Active Transport
Passive Transport
Osmosis
20
What is not true about the uptake of nutrients?
The process uses ATP
The roots do not have a great surface area
The system uses Potassium ion channels
Nitrate cotransports with hydrogen
21
Flowering involves a change in
weather
hormones
gene expression
temperature
22
Phloem is used to transport _____
Water Up
Sugar Up
Water Down
Sugar Down
23
What is not true about leaves?
Perform Photosynthesis
They have a high amount of surface area to absorb light
Performs part of gas exchange within a plant
Releases Carbon Dioxide into the air
24
How do terrestrial plants support themselves?
All of the above
Thickened cellulos
Xylem
Cell turgor
25
Where does the energy for photosynthesis come from?
Glucose
Chemical bonds in water
Minerals in soil
Sunlight
26
The hormone that causes a plant to bend toward light is
potassium
nitrate
auxin
gibberellin
27
Plant hormones control growth in the shoot apex
False
True
28
Where does water enter the plant?
Stem
Leaves
Flower
Root
29
This structure transports water up the stem
Phloem
Tuber
Sloem
Xylem
30
Plant shoots respond to the environment by
tropisms
osmosis
patterns
all of these answers are correct
31
What plant part is responsible for the majority of photosynthesis?
Leaf
Root
Seed
Stem
32
What two ingredients are needed for photosynthesis?
Water and Glucose
Water and Oxygen
Water and Carbon Dioxide
Glucose and Oxygen
33
What is not a function of the roots?
Anchor the plant
Stores food
Photosynthesize
Absorb water
34
Oxygen and carbon dioxide diffuse in and out of a leaf through the
stomata
guard cells
phloem
palisade mesophyll
35
What treatment is most likely to lead to germination?
Increasing CO2 concentration
Soaking the seeds in a solution of gibberellins
Dehydrating the seeds
Increasing light intensity
