SCIENCE9
Quiz by MERCY PAGLINAWAN
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- Q 1/9Score 0
Alveoli are tiny air sacs in the lungs that play a crucial role in the respiratory system. They facilitate the exchange of gases between the air and the bloodstream. What is the primary role of alveoli in the transport of gases within the body?
29To filter impurities from the air before it enters the lungs.
To facilitate the exchange of oxygen and carbon dioxide between the air and the bloodstream.
To transport oxygen and carbon dioxide between the lungs and heart
To produce mucus that traps pathogens and dust in the airways.
- Q1
Alveoli are tiny air sacs in the lungs that play a crucial role in the respiratory system. They facilitate the exchange of gases between the air and the bloodstream. What is the primary role of alveoli in the transport of gases within the body?
To filter impurities from the air before it enters the lungs.
To facilitate the exchange of oxygen and carbon dioxide between the air and the bloodstream.
To transport oxygen and carbon dioxide between the lungs and heart
To produce mucus that traps pathogens and dust in the airways.
30s - Q2
In genetics, different inheritance patterns determine how traits are expressed in offspring. When a black chicken is crossed with a white chicken, the resulting offspring display a black-white checkered pattern. What inheritance pattern is demonstrated when a black chicken is crossed with a white chicken, resulting in black-white checkered offspring?
Incomplete dominance
Complete dominance
Codominance
Sex-linked inheritance
30s - Q3
Genetic diversity refers to the variety of genetic characteristics within a population, which can influence its ability to adapt to environmental changes and contribute to the overall health of ecosystems. Which of the following best describes genetic diversity?
The variety of genes and alleles within a population of organisms.
The physical differences between individuals of the same species.
The presence of different species in an ecosystem.
The ability of an organism to produce offspring.
30s - Q4
Chlorophyll is a green pigment found in plants that plays a crucial role in photosynthesis, the process by which plants convert sunlight into energy. Chlorophyll is mostly located above the leaf of the plant to _________.
Protect the plant from herbivores.
Maximize sunlight absorption for photosynthesis.
Increase the absorption of water from the soil.
Provide structural support to the leaf.
30s - Q5
Adenosine triphosphate(ATP) is the primary energy carrier in cells, and different metabolic processes produce varying amounts of ATP. Which of the following processes produces the most ATP?
Glycolysis
Oxidative Phosphorylation (Electron Transport Chain)
Fermentation
Krebs Cycle (Citric Acid Cycle)
30s - Q6
In boxing, quick reflexes and movements can reduce the impact of an incoming punch. A boxer's reaction to an opponent’s jab can be crucial for minimizing damage. A boxer quickly moves his head backward when he sees a jab coming toward his head. What is the primary purpose of this head motion?
To avoid direct contact and reduce the impact of the punch.
To confuse the opponent with unexpected head movement.
To gain more momentum for delivering a stronger punch.
To prepare for a counter attack immediately after the jab.
30s - Q7
The night sky reveals different constellations at various times of the year due to the Earth's orbit around the Sun. What explains why different constellations are visible at different times of the year?
The Earth’s rotation on its axis affects the visibility of constellations.
The brightness of stars changes throughout the year.
The distance of stars from Earth alters their visibility during different seasons.
The Earth’s orbit around the Sun changes our perspective of the night sky.
30s - Q8
In projectile motion, a projectile follows a curved path due to the influence of gravity and initial velocity. Understanding the components of velocity helps in analyzing projectile motion. The horizontal component of a projectile’s velocity is independent of _____.
The height from which the projectile is launched.
The vertical component of the projectile's velocity.
The time the projectile is in the air.
The initial launch angle of the projectile.
30s - Q9
Electricity is generated and transmitted across long distances to provide power to homes, industries and other facilities. Understanding the components that facilitate this transmission is essential. Which of the following technologies or methods allows electricity to reach far and distant places effectively?
High-voltage transmission lines
Underground power cables
Renewable energy sources
Electrical batteries
30s
