when plants give off moisture into the atmosphere

higher the concentration of dissolved particles in a solution, the...

lower the concentration of water molecules

A commercial flower grower could induce winter flowering of a long-day plant by

exposing the plant to light in the middle of the night.

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IB Biology HL: Topic 9 Plant biology

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9.1 Transport in the Xylem of plants 9.2 Transport in the phloem of plants 9.3 Growth in Plants 9.4 Reproduction in plants

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Questions 19

Answers

1
B is
B is the sepal
B is the stigma
B is the anther
B is the ovary
2
Today scientists know that photoperiodicity in plants depends primarily on
amount of phytochromes
hours of darkness.
the degree of temperature
the intensity of light
3
This brings in fluids and solutes into a cell during active transport.
pinococytosis
phagocytosis
4
Transpiration is
The process of a gas turning into a liquid.
when plants give off moisture into the atmosphere
gas formed from something that is usually a liquid or solid
When a liquid changes into a vapor or gas.
5
Chlorophyll absorbs _____ and _______ light from the light.
purple and green
red and blue
yellow and green
black and orange
6
Spinach and lettuce are examples of long-day plants. What stimulus causes them to flower?
short nights
high-temperature
rainfall
presence of insects
7
.
Vascular Seedless
Vascular Flowering
Non-Vascular
Vascular Nonflowering
8
8. Water and minerals move through vascular tissue known as what?
stomata
phloem
root hairs
xylem
9
What is the function of NADP+?
It acts as a long-term energy storage
It is a light-reflecting pigment
It is an electron carrier
It absorbs light
10
In angiosperms, pollen grains are produced in
anthers
sepals
ovules
carpels
11
Xylem is responsible for transporting........
Dissolved minerals
Water
both of those
neither of those
12
7. Seedless plants reproduce with ___.
flowers
spores
binary fission
seeds
13
Adhesion is when water sticks to...
itself
something else
14
What are the cells that makeup Phloem?
Spiracles
Vessel Cells
Sieve Tube Cells
Tracheary Elements
15
The movement of molecules down a concentration gradient is all of the following except
active transport
facilitated diffusion
simple diffusion
16
higher the concentration of dissolved particles in a solution, the...
smaller the concentration of water molecules
greater the concentration of water molecules
higher the concentration of water molecules
lower the concentration of water molecules
17
Cohesion is when water sticks to...
itself
something else
18
A commercial flower grower could induce winter flowering of a long-day plant by
fertilizing the plant with nitrogen
treating the plant with gibberellin
exposing the plant to light in the middle of the night.
covering the plant with a opaque cloth in the late afternoon
19
Which of the following is NOT part of the female structure of a flower?
stigma
style
filament
ovary

IB Biology HL: Topic 9 Plant biology Flashcards | StudBud