🥰1
🥰1
What is the main function of the kidney?
Anonymous Quiz
29%
Urination
53%
Filtration of blood
9%
Respiration
10%
Transportation of water
❤2
Which one of the following compounds contains more energy than all the rest per molecule?
Anonymous Quiz
9%
FADH2
22%
Pyruvic acid
21%
NADH
49%
ATP
❤3🥰2
2,In photorespiration:
Anonymous Quiz
14%
low oxygen concentrations cause Rubisco to form more GP than usual
44%
high oxygen concentrations cause Rubisco to form less GP than usual
24%
low carbon dioxide concentrations cause Rubisco to form less GP than usual
18%
high carbon dioxide concentrations cause Rubisco
👍2❤1
4. C4 photosynthesis is more efficient than C3 photosynthesis in conditions of:
Anonymous Quiz
24%
high light intensity and high carbon dioxide concentrations
31%
low light intensity and high carbon dioxide concentrations
33%
high light intensity and low carbon dioxide concentrations
12%
low light intensity and low carbon dioxide concentrations
Which of the following is the most important pigment for photosynthesis?
Anonymous Quiz
68%
Chlorophyll-a
20%
Chlorophyll-b
9%
Carotenoids
3%
Xanthophyll
6,CAM helps the plant in
Anonymous Quiz
18%
Glycolysis
34%
Disease resistance
11%
2ndry growth
36%
Conserving water
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7,What happens to excess energy not stored as ATP in a cell?
Anonymous Quiz
26%
It is lost as heat.
28%
It is converted to glucose.
34%
It is absorbed by the mitochondria.
12%
It is converted to protein.
❤1
8,What type of organisms can produce their own energy using sunlight?
Anonymous Quiz
9%
Heterotrophs
85%
Autotrophs
4%
Decomposers
2%
Parasites
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9,Which process produces the most ATP in cellular respiration?
Anonymous Quiz
28%
Glycolysis
14%
Krebs cycle
46%
Electron transport chain
11%
Fermentation
10,Which energy transformation occurs during cellular respiration?
Anonymous Quiz
6%
Glucose to heat
64%
Glucose to ATP
18%
Light to ATP
12%
Glucose to starch
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12,What happens to glucose during cellular respiration?
Anonymous Quiz
10%
It is converted into oxygen.
59%
It is broken down to release energy.
27%
It is stored as ATP.
3%
It is used to produce nitrogen.
13,During photosynthesis, which gas is used as a reactant?
Anonymous Quiz
11%
Oxygen
82%
Carbon dioxide
7%
Nitrogen
0%
Methane
14,What molecule acts as the main energy currency in a cell?
Anonymous Quiz
17%
Glucose
70%
ATP
12%
NADPH
2%
Pyruvate
❤1
15,In which part of the chloroplast does the light-dependent reaction occur?
Anonymous Quiz
29%
Stroma
60%
Thylakoid membrane(grana)
8%
Outer membrane
3%
Matrix
Physics grade 12 unit 1.
1. The spectroscopic techniques are developed by collaborative work of physicists and__________.
A. biologists
B. chemists
C. mathematician
D. astrophysics
2. Athlete Sifan failed down in the truck. A physicist interprets this phenomenon as:
A. she did not get rest.
B. she did not eat food.
C. her center of mass is outside the base.
D. she is overloaded.
3. During inhalation, pressure in our lungs is:
A. greater than atmospheric pressure.
B. the same as atmospheric pressure.
C. less than atmospheric pressure.
D. impossible to compere with atmospheric pressure.
4. One of the following characteristic of sound wave damage our ear drum:
A. High frequency
B. High wavelength
C. High period
D. High intensity
5. Which one of the following branches of physics deals with the concept of photosynthesis?
A. Optical physics
B. Nuclear physics
C. Medical physics
D. Thermodynamics
6. Astronomers use one of the following physics knowledge to describe the motion of planets around the Sun.
A. Magnetic field of the earth
B. Electric charge of the earth
C. Electromagnetism
D. Universal gravitational law
7. Astronomers use
from space object to study how hot the objects are.
A. mechanical energy
B. electromagnetic radiation
C. gravitational force
D. sound wave
1. The spectroscopic techniques are developed by collaborative work of physicists and__________.
A. biologists
B. chemists
C. mathematician
D. astrophysics
2. Athlete Sifan failed down in the truck. A physicist interprets this phenomenon as:
A. she did not get rest.
B. she did not eat food.
C. her center of mass is outside the base.
D. she is overloaded.
3. During inhalation, pressure in our lungs is:
A. greater than atmospheric pressure.
B. the same as atmospheric pressure.
C. less than atmospheric pressure.
D. impossible to compere with atmospheric pressure.
4. One of the following characteristic of sound wave damage our ear drum:
A. High frequency
B. High wavelength
C. High period
D. High intensity
5. Which one of the following branches of physics deals with the concept of photosynthesis?
A. Optical physics
B. Nuclear physics
C. Medical physics
D. Thermodynamics
6. Astronomers use one of the following physics knowledge to describe the motion of planets around the Sun.
A. Magnetic field of the earth
B. Electric charge of the earth
C. Electromagnetism
D. Universal gravitational law
7. Astronomers use
from space object to study how hot the objects are.
A. mechanical energy
B. electromagnetic radiation
C. gravitational force
D. sound wave
❤5