Cell Work Unit Test
1 of 151 of 15 Items
Question
Which process in photosynthesis uses energy from the sun?(1 point)
Responses
absorbing carbon dioxide
absorbing carbon dioxide
combining carbon dioxide and hydrogen
combining carbon dioxide and hydrogen
splitting water into hydrogen and oxygen
splitting water into hydrogen and oxygen
releasing oxygen
releasing oxygen
splitting water into hydrogen and oxygen
A scientist fills a glass container with water and places an aquatic plant inside the container, then closes the lid and places the container in direct sunlight. The scientist observes small bubbles on the surfaces of the plant’s leaves on days 1 and 2, but no bubbles on day 3. The scientist concludes that the bubbles were caused by photosynthesis. Which substance should be added to the water in order for the bubbles to reappear?(1 point)
Responses
oxygen
oxygen
hydrogen gas
hydrogen gas
carbon dioxide
carbon dioxide
glucose
glucose
carbon dioxide
Which process do plants and animals share in common?
Plants and animals share the process of cellular respiration.
The taiga biome has long, cold, dry winters and cool, wet summers. In three to four sentences, describe how the plants and animals would be impacted by a warm and dry summer and how they might survive. Support your answer with the abiotic factors in the biome
A warm and dry summer in the taiga biome would create several challenges for both plants and animals. The lack of moisture would hinder plant growth and could cause dehydration and death, while animals that rely on these plants for food could face a shortage of resources. Additionally, increased heat and dryness could lead to an increase in wildfires, further disrupting the ecosystem. To survive, species might adapt by reducing their activity levels or migrating to areas with more favorable conditions, and some plants might have adaptations to conserve water or store nutrients.
You encounter a plant that has green structures on tall brown stalks. Which kind of plant is this, and what are the green structures? (1 point)
Responses
It is a nonvascular plant, and the structures are leaves.
It is a nonvascular plant, and the structures are leaves.
It is a vascular plant, and the structures are roots.
It is a vascular plant, and the structures are roots.
It is a nonvascular plant, and the structures are roots.
It is a nonvascular plant, and the structures are roots.
It is a vascular plant, and the structures are leaves.
It is a vascular plant, and the structures are leaves.
The cells in vascular and nonvascular plants are both able to get water, but nonvascular plants have different methods than vascular plants. How do these differences affect the height of the plants? In three to five sentences, explain this and be sure to describe how each type of plant gets water to its cells.
The main difference in how vascular and nonvascular plants obtain water is that vascular plants have specialized tissues for water transport, while nonvascular plants do not. Vascular plants have xylem, which carries water and minerals from the roots up to the rest of the plant, and phloem, which carries sugars and other organic nutrients. Nonvascular plants, such as mosses, rely on capillary action and osmosis to transport water and nutrients through their tissues. Because of this difference, vascular plants can grow taller than nonvascular plants, since they have a more efficient system for moving water and nutrients to their upper regions. This allows them to develop larger and more complex structures, such as leaves and flowers, which are necessary for photosynthesis and reproduction.
In one to two sentences, identify the purpose of the roots in a plant and how a disease that harms the roots of a flowering plant would affect the plant’s ability to survive.
The main purpose of the roots in a plant is to absorb water and nutrients from the soil. A disease that harms the roots of a flowering plant would affect the plant’s ability to survive because it would disrupt its ability to obtain essential resources, making it more vulnerable to other stresses and possibly leading to death.
Use the image of the rose plant to complete the activity.
An illustration shows a rose flower with its stem.
Describe two adaptations you see on the rose plant, and explain how they are adaptations for defense, survival, or reproduction. Use three to five sentences to explain this.
One adaptation on the rose plant is the presence of thorns along the stem, which are modified leaves. These thorns serve a defensive function, protecting the plant from herbivores that might try to eat its leaves or flowers. Another adaptation is the bright, showy flowers, which attract pollinators such as bees and butterflies for reproduction. The flowers contain both male and female reproductive organs, allowing for self-pollination, but pollinators increase the likelihood of successful pollination and fertilization. Additionally, the fragrances and colors of the flowers may also help attract specific pollinators. Overall, these adaptations help the rose plant to survive and reproduce in its environment.
Cell Work Unit Test
9 of 159 of 15 Items
Question
Which adaptation in a berry plant is for reproduction? (1 point)
Responses
thorns on the stem
thorns on the stem
flowers on the plant
flowers on the plant
sugar in the berries
sugar in the berries
chlorophyll in the leaves
chlorophyll in the leaves
flowers on the plant
Cell Work Unit Test
10 of 1510 of 15 Items
Question
Some plants have sugar in their roots. How does this adaptation help with survival?(1 point)
Responses
Having the sugar under the ground keeps animals from finding and eating it.
Having the sugar under the ground keeps animals from finding and eating it.
The sugar is used to create new plants.
The sugar is used to create new plants.
The sugar attracts animals to eat the roots.
The sugar attracts animals to eat the roots.
The sugar can help the plant survive by storing energy.
The sugar can help the plant survive by storing energy.
The sugar can help the plant survive by storing energy.
How do tropisms help plants survive?(1 point)
Responses
Plants grow toward things they need.
Plants grow toward things they need.
Plants grow together with other plants.
Plants grow together with other plants.
Plants limit their needs in harsh conditions.
Plants limit their needs in harsh conditions.
Plants create their own food using chlorophyll.
Plants grow toward things they need.
A plant is observed to have deep roots and tendrils that wrap around objects. Which pair of tropisms correctly describe these responses?(1 point)
Responses
hydrotropism and thigmotropism
hydrotropism and thigmotropism
phototropism and thigmotropism
phototropism and thigmotropism
hydrotropism and geotropism
hydrotropism and geotropism
geotropism and phototropism
geotropism and phototropism
a
or
b
or
c
or
d
hydrotropism and thigmotropism
Cell Work Unit Test
13 of 1513 of 15 Items
Question
Pole beans need something to grow around and up. Which kind of stimuli can encourage this type of growth?(1 point)
Responses
gravity
gravity
touch
touch
light
light
water
touch
ATP is
ATP stands for Adenosine triphosphate, which is a molecule that stores and releases energy that is needed for various cellular processes. It is often referred to as the "energy currency" of the cell because it provides the energy that powers many important biological activities, such as muscle contractions, nerve impulses, and chemical reactions.
Cell Work Unit Test
14 of 1514 of 15 Items
Question
ATP is(1 point)
Responses
a form of energy that can be used and stored
a form of energy that can be used and stored
released when carbon dioxide and water form glucose
released when carbon dioxide and water form glucose
stored during cellular respiration
stored during cellular respiration
a form of energy that cannot be stored
a form of energy that cannot be stored
a form of energy that can be used and stored.
Cell Work Unit Test
15 of 1515 of 15 Items
Question
ATP stores some of the energy from glucose molecules during cellular respiration. How is the remaining energy from these glucose molecules released?(1 point)
Responses
Excess light
Excess light
Excess water
Excess water
Excess heat
Excess heat
Excess carbon dioxide
Excess carbon dioxide
Excess heat
One molecule of glucose is recycled into ___ molecules of carbon dioxide during cellular respiration.(1 point)
Responses
2
2
12
12
1
1
6
6
Which role does photosynthesis play in the flow of energy? (1 point)
Responses
Photosynthesis allows plants to create energy for themselves to store and use for metabolism.
Photosynthesis allows plants to create energy for themselves to store and use for metabolism.
Photosynthesis is how plants break down glucose to use for energy.
Photosynthesis is how plants break down glucose to use for energy.
Photosynthesis converts radiant energy to chemical energy to be used by organisms in the food chain.
Photosynthesis converts radiant energy to chemical energy to be used by organisms in the food chain.
Photosynthesis provides radiant energy to all the organisms in the entire food chain.
Photosynthesis converts radiant energy to chemical energy to be used by organisms in the food chain.
How does the carbon stored in the bodies of living organisms move into rocks?(1 point)
Responses
Living organisms decay, releasing carbon into the soil, and soil is compacted into rocks.
Living organisms decay, releasing carbon into the soil, and soil is compacted into rocks.
Carbon dioxide dissolves in ocean water and is slowly absorbed by rocks in the ocean.
Carbon dioxide dissolves in ocean water and is slowly absorbed by rocks in the ocean.
Carbon dioxide released through respiration dissolves in certain rocks, like limestone.
Carbon dioxide released through respiration dissolves in certain rocks, like limestone.
Living organisms decay and become fossils fuels, which eventually become rocks.
Living organisms decay and become fossils fuels, which eventually become rocks.
Carbon dioxide dissolves in ocean water and is slowly absorbed by rocks in the ocean.
The nitrogen cycle requires _____ to convert nitrogen to nitrites and nitrates.(1 point)
Responses
bacteria
bacteria
plants
plants
animals
animals
legumes
bacteria
The three steps of the nitrogen cycle in order, starting with nitrogen gas in the atmosphere, are(1 point)
Responses
nitrification, nitrogen fixation, and denitrification.
nitrification, nitrogen fixation, and denitrification.
nitrogen fixation, nitrification, and denitrification.
nitrogen fixation, nitrification, and denitrification.
nitrogen fixation, denitrification, and nitrification.
nitrogen fixation, denitrification, and nitrification.
denitrification, nitrification, and nitrogen fixation.
nitrogen fixation, nitrification, and denitrification.
How do energy and matter move in ecosystems?(1 point)
Responses
Energy and matter flow in one direction.
Energy and matter flow in one direction.
Energy flows in one direction, and matter cycles through the environment.
Energy flows in one direction, and matter cycles through the environment.
Matter flows in one direction, and energy cycles through the environment.
Matter flows in one direction, and energy cycles through the environment.
Energy and matter cycle through the environment.
Energy flows in one direction, and matter cycles through the environment.
Which statement is true?(1 point)
Responses
Food webs are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
Food webs are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
Food chains are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
Food chains are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
Food webs are the best depictions of feeding relationships because they show a single path for the flow of energy through an ecosystem.
Food webs are the best depictions of feeding relationships because they show a single path for the flow of energy through an ecosystem.
Food chains are the best depictions of feeding relationships because they show a simplified path for the flow of energy through an ecosystem.