Science Test #5

An educational illustration depicting the cellular respiration processes, including glycolysis, Krebs cycle, and electron transport chain, with vibrant colors and labeled diagrams

Cellular Respiration Quiz

Test your knowledge on cellular respiration with our engaging quiz designed for students and science enthusiasts alike! Dive deep into the fascinating processes of glycolysis, the Krebs cycle, and the electron transport chain.

Key topics covered:

Understanding of enzyme functions
Identifying metabolic pathways
Differentiating fermentation processes

17 Questions4 MinutesCreated by StudyingStar101

In terms of what is primarily produced by enzymes in the Citric Acid cycle, the major purpose of this stage in cellular respiration is to...

To make NADPH for producing G3P

Add electrons NADH and FADH2 to carry to the ETC

Remove carbon atoms in order to produce oxygen

To directly make ATP

What is another name for the Krebs Cycle

The citric acid cycle

The carbon dioxide cycle

The pyruvic acid cycle

The calvin cycle

Savannah is asked to explain the locations of the stages of cellular respiration. What location should she give for the site fo the Krebs cycle reactions?

The Cytoplasm of the cell

Teh cell membrane, which surrounds the cell

The matrix of the mitochondria

The nucleus, the innermost part of the cell

The molecules in the food we eat contain chemical energy stored in chemical bonds, Which statement BEST explains how this energy is released?

Chemical bonds in food molecules are broken, releasing energy and allowing cells to use the energy to make ATP

Cells burn food molecules, releasing energy and allowing clls to use the energy to make ATP

Chemical energy is released as eaten food is digested, giving off heat as a by-product

Cells extract and capture the energy in food molecules all at once, then store it for later use

What process makes dough rise in bread?

Alcoholic fermentation takes place and ethyl alcohol and CO2 gas are formed creating pockets in the dough

Alcoholic fermentation takes place and the yeast give off oxygen, creating pockets in the dough

Alcoholic fermentation takes place, and during the Krebs cycle, CO2 is produced, creating pockets in the dough.

Alcoholic fermentation takes place, and the H2O byproduct of the ETC vaporizes to crate pockets in the dough

How is glycolysis kept functioning during cellular respiration.

Two high-energy electrons are passed to the carrier NADH which transports electrons back to glycolysis.

Pyruvic acid from glycolysis reacts to form acetyl-CoA, which then combines witha four-carbon compound in the Krebs cycle and re-enters glycolysis

Two molecules of ATP from the cell are invested at the beginning of the process of glycolysis.

Hydrogen ions pass back across the mitochondrial membrane through chemiosmosis and re-enters glycolysis.

Natasha is making a model of cellular respiration. Her model shows the pathway followed when there is enough oxygen available. What does Natasha's model show?

An anaerobic pathway consisting of glycolysis and fermentation.

An aerobic pathway consisting of glycolysis and fermentation.

An anaerobic pathway consisting of glycolysis, the Krebs cycle and the ETC.

An aerobic pathway consisting of glycolysis, the Krebs Cycle, and ETC.

If Glycolysis produces 4 ATP during the enzyme reactions, why only two ATP result in the end?

Because two fo the four ATP are use to repay the "ATP debt" required to start the process over

Because two of the aTP will react with NADPH to start he Calvin Cycle

Because ATP is unstable and half will decay into ADP

Because two ATP are required to produce lactic acid

The rease we breathe oxygen is because....

It produces carbon dioxide

Reacts with carbon dioxide to produce ATP

Pulls electrons down the mitochondrial ETC, causing protons to flow through ATP synthase

Produces water by combining with hydrogen atoms in the matrix

What causes lactic acid to build up?

The production of too much NADH in muscles causing an immediate burning sensation

Lack of oxygen while exercising, causing the athlete to be "out of breath"

Lifting too much weight, causing soreness in muscles

Too much oxygen, causing the athlete to be sore

The overall reactions for photosynthesis and cellular respiration are opposite of each other. Select two statements that describe the two processes.

Cellular respiration uses carbon dioxidde formt he atmosphere and produces oxygen

Photosynthesis uses oxygen to release energy from food and produces carbon dioxide as a by-product.

Cellular respiration uses oxygen to release energy from food and produces carbon dioxide as a byproduct

Photosynthesis uses carbon dioxide from the atmosphere and produces oxygen.

Morgan has diabetes and must carefully monitor his food intake. He is learning the calorie count of his different macromolecules carbohydrates, proteins, and fats, so that he can make choices to keep his blood sugar in the proper range. He notices that the word calories. Which statement accurately describes calories and Calories? Select all the answers that apply.

A caloires is equal to 1000 Calories

A kilocalorie is equal to 1000 Calories

A Calories equal to 1000 calories

A Calorie is equal to a kilocalorie

ATP is produced in all stages of cellular respiration. Which two statements describe the process of ATP synthesis in the electron transport chain?

The high concentration of hydrogen ions in the inter-membrane space allows them to diffuse across the membrane, through an enzyme, and into the matrix

The ATP synthase spins when the hydrogen ions rush past, acting as a matchmaker and grabbing another phosphate group to attach to an ATP molecule

The high concentrations of NAD+ acts as a catalyst to speed up the formation of ATP from ADP

The FadH2 spins as the high-energy electrons rush past, synthesizing ATP from ADP

Science Test #5

Cellular Respiration Quiz

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