Chapter Chapter 8 Lesson 1 - Plant Processes

Which cells transport water from the roots to other parts of the plant?

• Xylem

• Chlorophyll

• Phloem

• Epidermal

Answer explanation

Xylem cells are responsible for transporting water and minerals from the roots to other parts of the plant. In contrast, phloem transports nutrients, chlorophyll is a pigment, and epidermal cells are protective.

What are the products of photosynthesis?

• Carbon Dioxide & Water

• Oxygen & Water

• Carbon Dioxide & Glucose

• Oxygen & Glucose

Answer explanation

Photosynthesis converts carbon dioxide and water into glucose and oxygen using sunlight. Therefore, the correct products of photosynthesis are oxygen and glucose.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What part of the plant does majority of photosynthesis occur?

• Stem

• Leaves

• Roots

• Flower

Answer explanation

Photosynthesis primarily occurs in the leaves of the plant, where chlorophyll captures sunlight and converts carbon dioxide and water into glucose and oxygen, making leaves the main site for this vital process.

Tags

NGSS.MS-LS1-6

What are the reactants of photosynthesis?

• Carbon Dioxide & Water

• Oxygen & Water

• Carbon Dioxide & Glucose

• Oxygen & Glucose

Answer explanation

The reactants of photosynthesis are carbon dioxide and water. These substances are used by plants to produce glucose and oxygen during the process of photosynthesis.

Tags

NGSS.MS-LS1-6

What are the small openings on leaves that allow gases to pass through called?

• Cuticle

• Stomata

• Mesophyll

• Epidermal

Answer explanation

The small openings on leaves that allow gases to pass through are called stomata. They play a crucial role in gas exchange, allowing carbon dioxide in and oxygen out, which is essential for photosynthesis.

Tags

NGSS.MS-LS1-6

What is the name of the plant cell organelles where photosynthesis occurs?

• Mitochondria

• Chlorophyll

• Chloroplasts

• Stomata

Answer explanation

Photosynthesis occurs in chloroplasts, which contain chlorophyll that captures sunlight. Mitochondria are involved in energy production, while stomata are openings for gas exchange, not sites of photosynthesis.

Tags

NGSS.MS-LS1-6

Why do most plants appear green?

• Photosynthesis produces green color.

• Chlorophyll absorbs green light.

• The cuticles of the plants leaves are green.

• Chlorophyll reflects green light.

Answer explanation

Most plants appear green because chlorophyll, the pigment responsible for photosynthesis, reflects green light rather than absorbing it. This reflection is why we perceive plants as green.

Tags

NGSS.MS-LS1-6

What is needed during photosynthesis to split the water molecules apart?

• Light energy

• Sugar

• Carbon Dioxide

• Glucose

Answer explanation

Light energy is essential during photosynthesis to split water molecules into oxygen and hydrogen. This process, known as photolysis, occurs in the presence of sunlight, making light energy the correct choice.

Tags

NGSS.MS-LS1-6

What is the name of the sugar that plants will produce during photosynthesis and use as a food source?

• Cuticle

• Epidermal

• Glucose

• Mesophyll

Answer explanation

During photosynthesis, plants convert sunlight into energy, producing glucose as a primary sugar. Glucose serves as a vital food source for plants, enabling growth and energy storage.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What cells allow sugar to be transported from the leaves to other parts of the plant?

• Phloem

• Mesophyll

• Xylem

• Epidermal

Answer explanation

Phloem is the tissue responsible for transporting sugars produced in the leaves to other parts of the plant. In contrast, xylem transports water and nutrients, while mesophyll and epidermal cells have different functions.

Tags

NGSS.MS-LS2-3