Photosynthesis

Where in the cell does photosynthesis take place?

• Cell membrane

• Mitochondria

• Cytoplasm

• Chloroplast

Tags

NGSS.MS-LS1-6

What is required for photosynthesis to occur?

• Glucose

• Oxygen

• Light

• Starch

Tags

NGSS.MS-LS1-6

A potted plant is placed inside a clear, sealed vacuum container that has water pumped into it on a regular basis. The container is placed in the sun and the plant’s growth is monitored. Which statement best describes what will most likely happen to the plant over time?

• The plant will grow faster because it is sheltered from the wind.

• The plant will die because it does not have oxygen for photosynthesis.

• The plant will die because it does not have carbon dioxide for photosynthesis

• The plant will grow at a slower rate because it requires more water.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The gas released in this investigation is

• carbon dioxide

• Nitrogen

• Hydrogen

• Oxygen

Tags

NGSS.MS-LS1-6

Which type of energy transformation occurs in photosynthesis?

• chemical to mechanical

• light to chemical

• light to mechanical

• chemical to light

Tags

NGSS.MS-LS1-6

The Earth gets most of its energy from the sun. We call this energy solar energy. Solar energy travels from the sun to the Earth in rays. When the rays reach the Earth, some bounce off clouds back into space—the rays are reflected. The Earth absorbs most of the solar energy and turns it into heat. This heat warms the Earth and the air around it. The sun is considered the ultimate source of energy for life on Earth because

• all organisms carry out photosynthesis.

• light energy is converted to chemical energy by photosynthetic organisms

• all organisms carry out cellular respiration.

• the sun heats the Earth’s atmosphere

Tags

NGSS.MS-LS2-3

Mike has four aquatic plants of the same size and the same species. He submerges the plants in a separate beaker filled with 200 ml of water. He then sets each beaker under a different intensity of light. Mike observes that, of the four plants, the plant in the beaker under the most intense light gives off the most gas bubbles in a 20 minute period. Which of the following statements best explains Mike’s observations?

• Cells decompose most quickly under the most intense light.

• Water evaporates from plants faster under the most intense light.

• Photosynthesis occurs at the highest rate under the most intense light.

• Gases in the leaves of plants expand most under the most intense light

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Chlorophyll is green because

• it absorbs green wavelengths

• it reflects green wavelengths of light

• of an optical illusion caused by transmitted light

• it absorbs blue and yellow wavelengths, which makes green

Plant cells have

• mitochondria only

• chloroplasts only

• both mitochondria and chloroplasts

• neither mitochondria nor chloroplasts

Tags

NGSS.MS-LS1-2

The process of photosynthesis needs what to store energy?

• carbon dioxide, water, and energy

• carbon dioxide cytoplasm, and energy

• carbon monoxide, water, and energy

• carbon monoxide, cytoplasm, and energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3