FREE AND STUDY GAMES ABOUT BIO. EXAM QUESTIONS

PDF Download

FREE AND STUDY GAMES ABOUT BIO. EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -10 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Which two statements explain how the human body is able to obtain energy without becoming too hot?

Answer:

he breakdown of glucose occurs in many small steps.Low-temperature breakdown of glucose is enabled by enzymes that catalyze specific reactions.Question 2: The Krebs cycle consists of many small steps, each catalyzed by an enzyme. What is another name for the Krebs cycle?

Answer:

the citric acid cycle.Question 3: Mariana eats an orange. Which statement describes the ultimate source of the energy that her body receives when she digests the orange?

Answer:

The light energy that originates from the sun provides the energy to grow oranges, which contain macromolecules.

Question 4: Glycolysis is the first stage of cellular respiration and is an anaerobic process.During glycolysis, glucose is converted to two molecules of pyruvic acid. How is glycolysis kept functioning during cellular respiration?

Answer:

Two molecules of ATP from the cell are invested at the beginning of the process of glycolysis.Question 5: 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?

Answer:

an aerobic pathway consisting of glycolysis, the Krebs cycle, and the electron transport chain

Question 6: . Which statements accurately describe calories and Calories?

Answer:

A Calorie is equal to 1000 calories.A Calorie is equal to a kilocalorie.Question 7: The overall reactions for photosynthesis and cellular respiration are opposite of each other. Select two statements that describe the two processes.

Answer:

Photosynthesis uses carbon dioxide from the atmosphere and produces oxygen.Cellular respiration uses oxygen to release energy from food and produces carbon dioxide as a by-product.Question 8: Savannah is asked to explain the locations of the stages of cellular respiration.What location should she give for the site of the Krebs cycle reactions?

Answer:

the matrix of the mitochondria Question 9: They learn that in eukaryotic cells the electron transport chain is in a different location than in prokaryotic cells. Which statements give the correct explanation of this difference?

Answer:

In prokaryotes, the electron transport chain is in the cell membrane.In eukaryotes, the electron transport chain is composed of a series of electron carriers located in the inner membrane of the mitochondrion.

Question 10: The molecules in the food we eat contain chemical energy stored in chemical bonds. Which statement BEST explains how this energy is released?

Answer:

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