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- Q1
Which of the following are organs of the respiratory system?
nasal cavity, pharynx, larynx, lungs
nasal cavity, pharynx, larynx, stomach
nasal cavity, trachea, veins, intestines, lungs
nasal cavity, trachea, brain heart, lungs
30s - Q2
Which of the following best describes pulmonary circulation? Blood circulation from the _______________________.
heart going to the lungs and other parts of the body
body going to the heart
heart going to the lungs and back to the heart
lungs to the different parts of the body
30s - Q3
Where do cellular respiration and photosynthesis take place?
Respiration and photosynthesis both occur in plants.
Cellular respiration occurs in mitochondria and photosynthesis occurs in
chloroplast.
Respiration occurs in chloroplast and photosynthesis occurs in
mitochondria.
Respiration and photosynthesis both occur in animals.
30s - Q4
Why does Calvin cycle needs the products of light phase?
because it is needed to convert sugar into oxygen
because it is needed to convert oxygen into sugar
because it is needed to convert carbon dioxide into sugar
because it is needed to convert sugar into carbon dioxide
30s - Q5
Cellular respiration starts with glycolysis, which occurs in the cytoplasm, producing 2 pyruvic acid. Which of the following processes will allow cellular respiration to continue in case oxygen is absent?
Krebs cycle
chain anaerobic respiration
electron Transport
aerobic respiration
30s - Q6
How many ATP molecules are needed to split glucose into two?
4 ATP
2 ATP
6 ATP
8 ATP
30s - Q7
What are the products of light-dependent reaction used to power the light independent
reaction?
NADPH and carbon dioxide
NADPH and ATP
sugar and ATP
oxygen and NADPH
30s - Q8
Mesophyll layer of the leaf plays an important role in trapping light energy from the sun upon which photosynthesis mostly take place in this layer. Why is this so?
because it is transparent allowing light to penetrate
because it contains air spaces
because it provides an entrance and exit for gases
because it has the greatest number of chloroplasts
30s - Q9
Which could be a probable cause of increase in the population of preys in an environment?
destruction of prey habitats
lower birth rate than death rate of preys
calamities and rampant spread of diseases
decrease in the population of their predators
30s - Q10
Which of the following is NOT a requirement of photosynthesis?
light energy
oxygen
water
carbon dioxide
30s