Ch 5 Photosynthesis

During photosynthesis ​ (a)   is converted into ​ (b)   THEN the chemical energy is converted into ​ (c)   .

• light energy
• chemical energy
• ATP energy
• glucose

Answer explanation

Photosynthesis is a process in which light energy is turned into chemical energy, then the chemical energy is used to make glucose

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

What are the reactants of photsynthesis?

• glucose

• carbon dioxide

• water

• oxygen

• light energy

Answer explanation

Light energy, carbon dioxide, and water are all needed in order for the chloroplast to perform photosynthesis.

Tags

NGSS.MS-LS1-6

What are the products of photosynthesis?

• glucose

• light energy

• oxygen

• water

• carbon dioxide

Answer explanation

Glucose and oxygen are both produced during photosynthesis. Glucose is the plant's food. Oxygen is a waste product that gets released by the plant (or other photosynthetic organisms).

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which organism(s) are not photosynthetic?

• plants

• animals

• algae

• photosynthetic bacteria

Answer explanation

Animal cells do not contain chloroplasts, so animals can not perform photosynthesis.

Tags

NGSS.MS-LS1-6

What is the initial energy source for most life on Earth?

• light energy from Sun

• gravity waves

• water

• oxygen

Answer explanation

Light energy from the sun causes photosynthetic organisms to make glucose and oxygen. Then many other organisms benefit from the products of the photosynthetic organisms.

Tags

NGSS.MS-LS1-6

C₆H₁₂O₆ is the chemical formula for this important molecule made during photosynthesis

• proteins

• glucose

• oxygen

• lipids

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Light absorbing molecules that capture energy from sunlight are called

• chlorophyll

• chloroplasts

• pigments

• solar absorbers

Answer explanation

Light absorbing molecules are called pigments. Chlorophyll is the green pigment found inside chloroplasts. I like to say "chlorophyll fills up the chloroplast" to help remember that chlorophyll is the green pigment INSIDE chloroplasts.

Tags

NGSS.MS-LS1-6

Which 3 color wavelengths of light does chlorophyll absorb and use during photosynthesis?

• violet

• red

• green

• blue

• orange

Answer explanation

Chlorophyll absorbs blue-violet and red wavelengths of the visible light spectrum to perform photosynthesis. It reflects almost all of the green wavelength of light.

Tags

NGSS.MS-LS1-6

Chloroplasts can move around in a cell in order to absorb as much light as possible

• true

• false

Answer explanation

This is pretty amazing! YES, chloroplasts actually move around within a cell in order to absorb as much light as possible in order to perform photosynthesis.

Tags

NGSS.MS-LS1-2

The inner part of the chloroplast that look like green flattened discs, this is where light E is converted into chemical E

• thylakoid

• stroma

• granum

• inner + outer membrane

Answer explanation

The inner part of the chloroplast that look like green flattened discs are called the thylakoids. A stack of thylakoids is called a granum.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3