During a biology class, Ava, Samuel, and Kai are discussing the role of carbohydrates in the human body. What is the primary function of carbohydrates?

In a biology class, Daniel, Abigail, and Rohan are studying the composition of different biomolecules. They are currently focusing on carbohydrates. Carbohydrates are primarily made out of...

Michael is studying biology and wants to understand the role of lipids in the human body. What is the primary function of lipids?

During a biology class, Rohan is asked to identify the monomer for various biomolecules. He needs to determine the monomer for carbohydrates. What is it?

In a biology class, Aria and Jackson are discussing how carbs and lipids are similar. They conclude that they...

In a biology class, Michael is learning about cell structures. He is asked which part of the cell directs all cell activities through the DNA located there.

During a biology class, Aria asked how mitochondria regulate energy in a cell. Can you help her understand?

In a biology class, Scarlett is learning about cell structures and asks which of the following is NOT found in PROKARYOTIC cells.

During a biology class, William and Nora are examining cells under a microscope. They observe that plant and animal cells are examples of

In a biology class, Isla is learning about cell structures. She is asked to identify the organelle that controls what goes in and out of plant and animal cells. Which one is it?

In a science class, Mia is learning about how plants produce food. She learns that an organelle captures energy from the sunlight to help in this process. Which organelle is it?

During a biology class, Ava observed under the microscope that the _____________ is a gel-like fluid that fills plant and animal cells. It holds the organelles in place and gives each cell its shape.

Anika, a paleontologist, discovers a fossilized cell during her excavation. She notes that the cell reproduced on its own and had DNA, but a membrane did not enclose its DNA. Based on these characteristics, which type of organism would this cell most likely belong to?

During a biology class, Nora examines a diagram showing the structure of an amino acid. She discusses with Michael and Zoe about the type of molecule that is formed from amino acids. Which type of molecule is it?

In a biochemical experiment, Jackson observes that a reactant binds to an enzyme at a region known as the

In a biology class, Scarlett is learning about enzymes. She is asked to identify the area on an enzyme where the substrate attaches. What is this area called?

During a biology class, Mia was asked to identify what type of biomolecule glucose (sugar) is. Glucose is an example of a

During a biology class, Emma shows a slide under the microscope and asks Benjamin, 'Which biomolecule is this a picture of?'

During a biology class, Noah shows a slide under the microscope and asks the class, 'Which biomolecule is this a picture of?'

During a biology class, Nora shows a slide under the microscope and asks, 'Which biomolecule is this a picture of?'

During a biology class, Nora is examining a molecular structure under the microscope. What macromolecule is Nora observing?

In a biology class, Luna and Oliver are conducting an experiment on plant growth. They are discussing the essential reactants for photosynthesis. Which two substances do they need to ensure are available for their plants?

During a school science project, Anika and Aria are explaining the process of photosynthesis. They mention that the two products of photosynthesis are:

The location where photosynthesis takes place is the ______________________.

Benjamin is conducting a science experiment to understand how different conditions affect photosynthesis in his home-grown plants. Which of the following actions could slow or stop the photosynthesis process? (Choose all that apply.)

In a biology class, Jackson and Lily are discussing photosynthesis. They are trying to identify what 'g' and 'i' represent in the process. What are 'g' and 'i'?

In a biology class, Isla is studying cellular energy and asks, 'Using the diagram of ATP molecule, which parts must the bonds be broken to form an ADP molecule?'

In a biology class, Abigail learned that plants need ________ for photosynthesis. What did she find out?

During a biology lab, Nora observed that energy is released from ATP when

During a biology class, Ethan, Abigail, and Elijah are learning about cellular processes. They are asked: What molecules are produced by cellular respiration?

Imagine a scenario where Henry, Isla, and Aria are studying botany. They are discussing a process that is part of the light-independent reaction in plants. This process uses CO2 and energy to make sugar. What is this process called?

During a biology class, Liam and Evelyn are studying a green molecule in chloroplasts that absorbs some energy in visible light. This molecule has two forms, a and b, which absorb blue and red light from the visible light spectrum.

During a biology class, Jackson, William, and Grace are learning about the structure of chloroplasts. They discuss pancake-shaped compartments filled with chlorophyll, which form stacks called grana inside the chloroplast. What are these compartments called?

In a biology class, Benjamin conducted an experiment on plant photosynthesis. What gas did the plants release as a result of photosynthesis?

During a biology class, Mia asked which organism(s) are capable of photosynthesis. Can you help her identify the correct group?

During a school science project, Scarlett is tasked with explaining how plants produce energy. She focuses on a specific organelle. Which organelle from the plant cell is primarily responsible for converting sunlight to energy?

Isla, Aria, and Mia are studying botany and are discussing the process of photosynthesis. Which of the following is the correct equation that they agree upon for PHOTOSYNTHESIS?

During a biology class, David asked, 'Which process releases energy?'

During a school science project, Isla observes a plant under sunlight. Which process in this scenario absorbs energy?

During a biology class, Isla learned about the process by which cells use oxygen to produce energy from food. What is this process called?

Sophia, Ethan, and Luna are studying the processes of photosynthesis and cellular respiration in plants in their garden. Which statement correctly describes the relationship between photosynthesis and cellular respiration in the plants they are studying?

Olivia, Daniel, and Samuel are studying for their biology exam. They come across a diagram that shows the process of cellular respiration both in the presence and in the absence of oxygen. They start discussing what can be concluded from the diagram. What do you think their conclusion should be?

Jackson, Noah, and Kai are preparing for their upcoming biology exam. During their study session, they examine a diagram of a molecule. After discussing the bond shown in the diagram and its breakage, they engage in a discussion to determine the correct name of the molecule that results from this process. Can you assist them in identifying the correct molecule?

Arjun, Hannah, and Evelyn set up the experiment shown in their Biology class. After 24 hours, they noticed gas had accumulated in one of the inverted test tubes. They measured the amount of gas. What would be a best explanation for the gas accumulated in one of the inverted test tubes?

Michael, Sophia, and Benjamin are conducting a biology experiment in their school laboratory. They have four tubes, each containing different organisms. Which tubes contain an organism(s) that are carrying on cellular respiration?

Henry, David, and Anika are watching a weightlifting competition. They notice that one of the competitors, who is using heavy weights in short bursts, begins to show signs of fatigue. They understand that his muscle cells are not able to take in enough oxygen to make very much ATP. Which of the following processes do they believe is most likely going on in the muscles of the weightlifter as he competes in his event?

Maya, Olivia, and Scarlett are studying for their biology exam. They come across a diagram that shows ions moving against a concentration gradient to an area of higher concentration in a cell, similar to a salmon swimming upstream. They are trying to figure out which molecule provides the energy needed for this movement. Can you help them?

In a park, Evelyn noticed a food chain where grass was eaten by a grasshopper, which was then eaten by a lizard, and finally, the lizard was eaten by an owl. In this scenario, Charlotte asked Aiden, what role does the grasshopper play?

Nora has a vegetable garden and she noticed that only __% of the energy from the vegetables she grows is transferred to Avery, who is the primary consumer of these vegetables.

Benjamin, Anika, and Scarlett are studying a plant in their biology class. Based on the diagram they are observing, which process do they conclude is happening in the plant? 

Abigail, Mia, and Daniel are studying the role of photosynthesis in the carbon cycle. They are discussing various statements about photosynthesis and its contribution to the carbon cycle. Select ALL of those that demonstrate the role of photosynthesis in the cycling of matter into and out of organisms (#3).

Arjun, Hannah, and Evelyn set up the experiment shown in their Biology class. After 24 hours, they noticed gas had accumulated in one of the inverted test tubes. They measured the amount of gas. What would be a best explanation for the gas accumulated in one of the inverted test tubes?

Abigail, Rohan, and Isla were conducting a science experiment in their school lab. They used Bromothymol blue, an indicator that changes from blue to yellow in the presence of carbon dioxide. They placed four test tubes in sunlight for 48 hours. According to their observations, which test tube turned the MOST yellow?

Arjun, Anika, and Abigail were conducting an experiment in their science class. They observed the absorption spectra of chlorophyll in a plant leaf. This observation showed them that

What is the order of the three phases in interphase?

In one phase of mitosis the chromosomes are attached to spindle fibers and line up in the center of the cell – what phase is this?

How many daughter cells are formed during mitosis?

Name this structure:

What is represented here?

What is the end product of meiosis?

Which organism in the food web shown would

contain the lowest concentration of chemical pollutants?

10.  Which of these daily human activities would have a beneficial impact on the environment?

Organelle in cells that modifies, sorts, and packages proteins and other materials from the endoplasmic reticulum for storage in the cell or release outside the cell

Scientists have found evidence that about 2.4 million years ago a gene regulating jaw muscles mutated and may have led to the more graceful human jaw we see today. The diagram below shows the skulls of 3 hominid species. Which statement below most closely explains the link between jaw size and hominid evolution?

The illustrations below represent different stages of hominid skull evolution.

What is the correct order of the evolution of the skull beginning with the earliest example?

The picture above shows homologous structures from various species. Which of the following statements explains why these structures provide support for the theory of evolution?