Photosynthesis

The first step in photosynthesis is the

• synthesis of water

• production of oxygen

• breakdown of carbon dioxide

• absorption of light

Tags

NGSS.HS-LS1-5

In a typical plant, all of the following factors are necessary for photosynthesis EXCEPT

• chlorophyll

• light

• oxygen

• water

Answer explanation

Oxygen is released as a byproduct of photosynthesis and is not necessary for the process to work.

Tags

NGSS.HS-LS1-5

Which of the following is a property of C4 plants?

• Admit air into their leaves only at night

• Leaves seal to prevent water loss.

• Allows photosynthesis to keep working under intense lights and high temperatures

• Trap carbon dioxide in their leaves

Which of the following is used by cells to store and release the energy needed to power cellular processes?

• DNA

• ATP

• H20

• CO2

Tags

NGSS.HS-LS1-7

In addition to light and chlorophyll, photosynthesis requires

• water and oxygen

• water and sugars

• oxygen and carbon dioxide

• water and carbon dioxide

Tags

NGSS.MS-LS1-6

The leaves of a plant appear green because chlorophyll

• reflects blue light

• absorbs blue light

• reflects green light

• absorbs green light

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

​ (a)   and ​ (b)   are the primary reactants in the process of photosynthesis. ​

• Carbon dioxide
• water
• sugars
• oxygen
• phosphate
• hydrogen ion

Tags

NGSS.MS-LS1-6

Autotrophs differ from heterotrophs because they

• utilize oxygen to burn food.

• do not require oxygen to live.

• make carbon dioxide as a product of using food.

• make their own food from carbon dioxide and water.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What role do pigments play in the process of photosynthesis?

• Make sugars

• Release oxygen

• Absorb sunlight

• They don't have a role in photosynthesis

Tags

NGSS.HS-LS1-5

Two structures inside the chloroplast are

• ribosomes and nucleus

• thylakoid and stroma

• lysosomes and endoplasmic reticulum

• stroma and vacuoles