SHORT QUIZ 1&2 REM SCIENCE 9

These are the substances needed in photosynthesis, EXCEPT?

• CO₂

• H₂O

• C₆H₁₂O₆

• Minerals

What is actually the role of sun light in photosynthesis?

• Help to produce sugar

• Increase transpiration

• Help to produce Oxygen

• It has no vital role

Photosynthesis occurs in:

• Mitochondria

• Chloroplasts

• Humans

• Animals

In photosynthesis, what kind of molecule does hydrogen start in?

• water

• oxygen

• glucose

• carbon dioxide

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water
• Atmosphere
• Sun
• Air

How do living organisms return carbon to the atmosphere in the carbon cycle?

• respiration and photosynthesis
•  decomposition and respiration

In the carbon cycle, producers take in the gas __

• carbon dioxide
• oxygen
• nitrogen
• carbon monoxide

What determines the order of elements on today's periodic table?

• increasing atomic mass

• decreasing atomic mass

• increasing atomic number

• decreasing atomic number

Good conductor of heat

• Metal
• Nonmetal

Each column in the periodic table is called a _________ .

• period
• group
• cluster
• unit