Science Chapter 1 Test: How Plants Live And Grow

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| By Mrlane

Mrlane

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Quizzes Created: 1 | Total Attempts: 1,660

Questions: 11 | Attempts: 1,660 | Updated: Mar 22, 2023

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This is the chapeter 1 assessment on the life and growth of plants. Students should understand parts of a plant and the life cycles of plants.

Questions and Answers

1.

Minerals are
- A.
  
  The food that leaves make.
- B.
  
  Natural, nonliving materials found in soil.
- C.
  
  Not needed for for plants to grow.
- D.
  
  A kind of plant stem.
Correct Answer
B. Natural, nonliving materials found in soil.

Explanation
Minerals are natural, nonliving materials found in soil. This is because minerals are essential for plant growth and development. They are absorbed by plants through their roots and play a crucial role in various physiological processes. Without minerals, plants would not be able to carry out important functions such as photosynthesis, nutrient uptake, and enzyme activation. Therefore, minerals are vital for plants to grow and thrive.

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2.

Stems are important to a plant because they
- A.
  
  Take water and minerals out of the soil.
- B.
  
  Hold the plant tightly in the ground.
- C.
  
  Turn energy from the sun into food for the plant.
- D.
  
  Carry food and water from one part of the plant to another.
Correct Answer
D. Carry food and water from one part of the plant to another.

Explanation
Stems are important to a plant because they carry food and water from one part of the plant to another. Stems have vascular tissues, such as xylem and phloem, which transport water and nutrients throughout the plant. Xylem carries water and minerals from the roots to the leaves, while phloem transports sugars and other organic molecules from the leaves to other parts of the plant. This transportation system allows for the distribution of essential resources needed for growth, metabolism, and reproduction in different parts of the plant.

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3.

Carbon dioxide is
- A.
  
  A mineral found in soil.
- B.
  
  Poisonous to plants.
- C.
  
  A gas in the air that goes into tiny opening in the leaves.
- D.
  
  A liquid made by the leaves.
Correct Answer
C. A gas in the air that goes into tiny opening in the leaves.

Explanation
Carbon dioxide is a gas in the air that goes into tiny openings in the leaves. This gas is essential for photosynthesis, the process by which plants convert sunlight into energy. The tiny openings in the leaves, called stomata, allow carbon dioxide to enter the plant and be used in the production of glucose. Without carbon dioxide, plants would not be able to produce the energy they need to grow and survive.

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4.

Which of these is part of a flower?
- A.
  
  Cone
- B.
  
  Mineral
- C.
  
  Germinate
- D.
  
  Petal
Correct Answer
D. Petal

Explanation
A petal is a part of a flower. It is a colorful, often delicate structure that surrounds the reproductive organs of a flower. Petals serve several functions, including attracting pollinators such as bees and butterflies, protecting the reproductive organs, and providing a platform for the display of colors and patterns. They are usually found in multiples and can vary in shape, size, and color depending on the species of flower.

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5.

Bees help pollinate flowers by
- A.
  
  Carrying pollen from one flower to another.
- B.
  
  Making honey to feed young plants.
- C.
  
  Scattering seeds.
- D.
  
  Dancing to tell one another where flowers are.
Correct Answer
A. Carrying pollen from one flower to another.

Explanation
Bees help pollinate flowers by carrying pollen from one flower to another. This is known as cross-pollination, where the pollen from the male part of the flower (anther) is transferred to the female part (stigma) of another flower, leading to fertilization and the production of seeds. Bees collect pollen as they move from flower to flower, and it sticks to their bodies. As they visit different flowers, some of the pollen rubs off onto the stigma, allowing for pollination to occur. This process is vital for the reproduction and survival of many plant species.

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6.

What is pollen?
- A.
  
  A yellowish powder that must move to the center of a flower before seeds can form
- B.
  
  The part of a flower that keeps insects and birds away
- C.
  
  The flower of a pine tree
- D.
  
  The part of a plant where seeds are
Correct Answer
A. A yellowish powder that must move to the center of a flower before seeds can form

Explanation
Pollen is a yellowish powder that must move to the center of a flower before seeds can form. Pollen contains the male reproductive cells of a plant and is transferred from the male part of the flower (stamen) to the female part (pistil) during pollination. This transfer of pollen allows for fertilization and the formation of seeds.

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7.

All stages in the plant's life make up its
- A.
  
  Pollination
- B.
  
  Germination
- C.
  
  Growth
- D.
  
  Life cycle
Correct Answer
D. Life cycle

Explanation
The correct answer is "life cycle". The life cycle of a plant refers to all the stages it goes through from germination to growth, reproduction, and eventually death. This includes processes like pollination, where pollen is transferred to the female reproductive organs, and germination, where a seed sprouts and begins to grow. Overall, the life cycle encompasses all the important milestones and changes that a plant experiences throughout its entire existence.

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8.

Roots are important to a plant because they
- A.
  
  Grow straight into the air
- B.
  
  Hold the plant tightly in the ground and absorb water and nutrients for the plant to live and grow
- C.
  
  Turn energy from the sun into food for the plant
- D.
  
  Carry food and water to different parts of the plant
Correct Answer
B. Hold the plant tightly in the ground and absorb water and nutrients for the plant to live and grow

Explanation
Roots are important to a plant because they hold the plant tightly in the ground, providing stability and support. Additionally, roots absorb water and nutrients from the soil, which are essential for the plant's survival and growth. Without roots, the plant would not be able to anchor itself or obtain the necessary resources for its sustenance.

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9.

What is a seed leaf?
- A.
  
  A cone that has not opened
- B.
  
  The part of a seed that contains stored food for the plant
- C.
  
  The hard outer covering of the seed
- D.
  
  The leaf that grows into the fruit.
Correct Answer
B. The part of a seed that contains stored food for the plant

Explanation
A seed leaf refers to the part of a seed that contains stored food for the plant. This food, also known as endosperm, provides nourishment to the growing seedling until it can establish its own source of nutrients through photosynthesis. Seed leaves are typically present in monocotyledonous plants, which have a single seed leaf, and dicotyledonous plants, which have two seed leaves. These seed leaves play a crucial role in the early growth and development of the plant by supplying it with the necessary energy and nutrients.

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10.

An example of a evergreen or conifer is
- A.
  
  A pine tree
- B.
  
  An apple tree
- C.
  
  A palm tree
- D.
  
  A flower
Correct Answer
A. A pine tree

Explanation
An example of an evergreen or conifer is a pine tree because pine trees are known for their needle-like leaves that remain green throughout the year. They are also classified as conifers because they produce cones to reproduce. Unlike deciduous trees that shed their leaves in the fall, pine trees retain their foliage, making them a classic example of an evergreen tree.

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11.

Germination is
- A.
  
  When the tiny plant inside a seed begins to grow and develop
- B.
  
  The outside part of a flower
- C.
  
  The thin hard outer part of a seed
- D.
  
  A natural nonliving material found in soil.
Correct Answer
A. When the tiny plant inside a seed begins to grow and develop

Explanation
Germination refers to the process in which the embryo or tiny plant inside a seed starts to grow and develop. It is the initial stage of a plant's life cycle, where the seed absorbs water and nutrients, causing the embryo to expand and break through the seed coat. This allows the plant to establish its root system and eventually develop into a mature plant. Germination is a crucial step for plants to reproduce and ensure their survival.

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Current Version
Mar 22, 2023

Quiz Edited by
ProProfs Editorial Team
Sep 16, 2009

Quiz Created by
Mrlane

Science Chapter 1 Test: How Plants Live And Grow

Minerals are

Stems are important to a plant because they

Carbon dioxide is

Which of these is part of a flower?

Bees help pollinate flowers by

What is pollen?

All stages in the plant's life make up its

Roots are important to a plant because they

What is a seed leaf?

An example of a evergreen or conifer is

Germination is