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Higher Biology 3.1 Food Supply, Plant Growth and Production Flashcards | StudBud
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Higher Biology 3.1 Food Supply, Plant Growth and Production
Higher Biology 3.1 Food Supply, Plant Growth and Production
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1
Each pigment absorbs................
a different range of wavelength of light
the same range of wavelength of light
2
Livestock produce ………………..
more food per unit area than crop plants
less food per unit area than crop plants
3
Plant crop examples include...…….
cereals, potato, roots, wheat
cereals, potato, roots, legumes
wheat, maize, legumes, root
pototo, cereals, maize, wheat
4
The ability of the human population to access food of sufficient quality and quantity is called ...………...
food security
food production
agricultural production
livestock production
5
Which two factors lead to increased food production?
photosynthesis and increase in human population
concern for food security and increase in human population
concern for food security and decrease in human population
photosynthesis and concern for food security
6
What happens to the oxygen that is produced during photolysis?
combined with carbon
evolved
taken into the cell
combined with hydrogen
7
What happens to 3PG?
Phosphotylated by NADP and combined with hydrogen from ATP to form G3P
Phosphorylated by ATP and combined with hydrogen from NADPH to form G3P
Phosphorylated by ATP and combined with hydrogen from NADPH to form RuBP
Phosphorylated by ATP and combined with hydrogen from NADH to form G3P
8
What is an action spectrum?
shows how effective the wavelengths are at photosynthesis
shows the wavelengths of light absorbed by the pigments
9
What does agricultural production depend on?
Livestock production
Plant growth
Factors that control photosynthesis
Crop breeding programmmes
10
The biosynthetic pathways that glucose is involved with produce metabolites such as............
DNA, RNA and protein
DNA, protein and fat
DNA, RNA and fat
Protein, RNA and fat
11
What happens to the electrons in the electron transport chain?
excited
generated
released
transferred
12
What is the function of RuBisCO?
Fixes carbon monoxide by combining it with RuBP
Fixes carbon dioxide by combining it with RuBP
Fixes carbon dioxide by combining it with G3P
Fixes oxygen by combining it with RuBP
13
Why is light absorbed by the photosynthetic pigments?
to generate ATP and for photolysis
to generate NADPH and for carbon fivxation
to generate ATP and for carbon fixation
to generate NADPH and for photolysis
14
What name is given to the coenzyme used in photosynthesis?
NADP
RuBisCO
G3P
NAD
15
What is the function of the carotenoids?
extend the range of wavelengths absorbed, pass the energy onto chlorophyll
narrow the range of wavelengths absorbed, pass the energy onto chlorophyll
narrow the range of wavelengths absorbed, pass the energy onto electrons
extend the range of wavelengths absorbed, pass the energy onto electrons
16
Which of these is not a reason why breeders seek to develop crops?
resistance to pests and diseases
use of fertiliser
higher nutritional values
ability to thrive in particular environmental conditions
17
What is photolysis?
splitting of carbon dioxide into oxygen and hydrogen
splitting of carbon dioxide into oxygen and carbon
splitting of water into oxygen and hydrogen
18
Food production must be...…………..
sustainable, degrade the natural resources on which agriculture depends
sustainable, not degrade the natural resources on which agriculture depends
19
Why do livestock produce less food per unit area than crop plants?
energy gained between trophic levels
loss of energy between trophic levels
20
Which of these is not a factor that controls plant growth?
protecting crops from pests, diseases and competition
use of fertiliser
those that can thrive in particular environmental conditions
breeding of higher yielding cultivars
21
Name the enzyme used in carbon fixation?
3PG
NADPH
G3P
RuBisCO
22
How is the energy produced from the transfer of electrons through the electron transport chain used?
generate ATP by ATP Synthesis and used for carbon fixation
generate ATP by ATP Synthase and used for carbon fixation
generate ATP by ATP Synthase and used for photolysis
generate ATP by ATP Synthesis and used for photolysis
23
When carbon dioxide combines with RuBP, what compound is formed?
RuBisCO
G3P
3PG
NADPH
24
Livestock production is possible in...……..
habitats suitable for growing crops
habitats unsuitable for growing crops
25
In the pigment molecule, absorbed light energy.................
generates ATP
fixes carbon dioxide to RuBP
transfers electrons
excites electrons
26
Chlorophyll absorbs in the ........................
blue and red wavelengths
red and green wavelengths
blue and green wavelengths
red and yellow wavelengths
27
What are the two functions of G3P?
synthesis of glucose and production of 3PG
regenerate RuBP and fixes carbon dioxide to RuBP
regenerate RuBP and synthesis of glucose
synthesis of glucose and fixes carbon dioxide to RuBP
28
The area to grow crops is …………...
limited
improved
constant
increased
29
What are the three fates of light as light strikes a leaf?
Absorbed, reflected and transmitted
Reflected, excited and absorbed
Excited, reflected and transmittted
Transmitted, absorbed and excited
30
What is an absorption spectrum?
shows how effective the wavelengths are at photosynthesis
shows the wavelengths of light absorbed by the pigments
31
What is all food production dependent on?
photosynthesis
increase in livestock
increase in human population
use of fertiliser
32
Which of these is not a fate of glucose made in photosynthesis?
used as a respiratory substrate
combined with hydrogen to form NAPH
passed to other biosynthetic pathways
synthesised into starch or cellulose
