Cellular Respiration and Photosynthesis Review

Anika, Evelyn, and Lily are on a science adventure, exploring how cells make energy! They stumble upon a mysterious process called the Krebs cycle. Can you help them figure out where in the cell the Krebs cycle takes place? The Krebs cycle occurs in the __________________________.

• chloroplast

• mitochondria

• rough endoplasmic reticulum

• lysosome

What label should be written in spot D

• cytoplasm

• cellular respiration

• glycolysis

• krebs cycle

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Ethan, William, and Isla are on a science adventure, exploring how our cells power up! They discover that a super important step involves a chain that passes electrons along to make lots of ATP energy. Can you help them figure out where in the cell this electron transport chain happens during aerobic cellular respiration?

• the cytoplasm

• the mitochondrial matrix.

• the thylakoid.

• the inner mitochondrial membrane.

Tags

NGSS.HS-LS1-7

Hannah, Abigail, and Jackson are on a science adventure, exploring how energy is made in living cells. They stumble upon the Krebs cycle! Can you help them figure out: what is the main function of the Krebs cycle?

• forming citric acid to make NADH, water, and CO₂

• breaking down pyruvate molecules to form molecules of NADH and oxygen

• producing molecules that carry high-energy electrons (NADH and FADH2) to the electron transport chain

• bonding coenzyme A to pyruvate

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What step/steps uses Oxygen as the final electron acceptor?

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Mia, Liam, and Abigail are on a science adventure, discovering how their bodies get energy from the food they eat. Which organelle in their cells acts like a tiny power plant, converting molecules from food into usable energy?

• mitochondrion

• chloroplast

• lysosome

• Golgi apparatus

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NGSS.HS-LS1-7

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Samuel, David, and James are training for a big race and are curious about how their bodies get energy from glucose while running. Can you help them figure out: which of the following are the end products of glycolysis?

• carbon dioxide, water, and ATP

• NAD⁺, oxygen, and two ATP molecules

• three-carbon molecules, ADP, and NAD⁺

• pyruvate, NADH, and ATP

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NGSS.HS-LS2-3

Daniel, Benjamin, and Aria are running a relay race, and their muscles need lots of energy to keep going! Energy is released from an ATP molecule for their cellular processes when it

• stores an extra phosphate group.

• converts a phosphate group to ADP.

• has a phosphate group removed.

• produces a sugar molecule.

Arjun, Zoe, and Anika are working together on a project about how energy flows in a factory. Imagine this factory has a super cool department (like the photosystems) that captures sunlight and makes energy-rich molecules, while another department (like the Calvin cycle) uses those molecules to build awesome products. What is the relationship between the energy-capturing department and the product-building department?

• The energy-capturing department builds products with the materials produced by the product-building department.

• The energy-capturing department transfers raw materials and supplies to the product-building department.

• The energy-capturing department transfers energy to the product-building department through special energy packets (like ATP and NADPH).

• The energy-capturing department produces machines for the product-building department.

Tags

NGSS.HS-LS1-5

Anika, Arjun, and Maya are on a science adventure, exploring how plants make their own food! They’re curious about the light-independent reactions of photosynthesis. During these reactions, what exciting process takes place?

• CO₂ enters the Calvin cycle and sugars are made.

• H₂O is broken down and oxygen is released.

• NADPH is produced and transferred to photosystem I.

• electrons are energized and used to pump H⁺ ions.