Q: Which of the following equations correctly represents the process of cellular respiration?

$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} \rightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + \text{energy}$$

Question 1

Which type of chemical bond is primarily responsible for holding together the atoms in a water molecule?

Accepted Answer

Covalent bond

Question 2

Which of the following best describes the role of enzymes in human biochemical reactions?

Accepted Answer

Enzymes lower the activation energy, speeding up reactions.

Question 3

A patient is given a solution with a high concentration of solutes. What will happen to their red blood cells if placed in this solution?

Accepted Answer

Cells will shrink due to water leaving the cell.

Question 4

Which of the following is a major difference between organic and inorganic compounds in the human body?

Accepted Answer

Organic compounds contain carbon-hydrogen bonds, while inorganic compounds typically do not.

Question 5

During which phase of mitosis do chromosomes align at the center of the cell?

Accepted Answer

Metaphase

Question 6

Which plasma membrane component is primarily responsible for selective permeability?

Accepted Answer

Phospholipid bilayer

Question 7

A cell is placed in a hypotonic solution. Predict what will happen to the cell and explain why.

Accepted Answer

The cell will swell and may burst because water enters the cell.

Question 8

Which of the following equations correctly represents the process of cellular respiration?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} ightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + 	ext{energy}$$

Question 9

Which organelle is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus

Question 10

A scientist observes a cell with a large number of ribosomes attached to its endoplasmic reticulum. What is the most likely function of this cell?

Accepted Answer

Protein synthesis

Question 11

Which feedback mechanism is most commonly used to maintain homeostasis in the human body?

Accepted Answer

Negative feedback

Question 12

A patient with a genetic mutation affecting the structure of their plasma membrane proteins is most likely to experience problems with which cellular process?

Accepted Answer

Selective transport of molecules

Question 13

Which of the following best explains why enzymes are specific to their substrates?

Accepted Answer

Enzymes have active sites with unique shapes that fit only specific substrates.

Question 14

Which process allows oxygen to move from the lungs into the blood across the alveolar membrane?

Accepted Answer

Simple diffusion

Question 15

Which of the following is a correct statement about the relationship between anatomy and physiology?

Accepted Answer

Anatomy is the study of structure, and physiology is the study of function.

Question 16

Which of the following best describes the function of the phospholipid bilayer in the plasma membrane?

Accepted Answer

It acts as a barrier to most water-soluble substances.

Question 17

A cell is observed to have a malfunctioning sodium-potassium pump. What is the most likely consequence?

Accepted Answer

The cell will lose its ability to maintain proper ion gradients.

Question 18

Which of the following is a real-life example of positive feedback in the human body?

Accepted Answer

Blood clotting cascade

Question 19

Which equation represents the dissociation of water into hydrogen and hydroxide ions?

Accepted Answer

$$\mathrm{H_2O} \rightarrow \mathrm{H^+} + \mathrm{OH^-}$$

Question 20

Which of the following best explains why cells must divide by mitosis?

Accepted Answer

To replace damaged or dead cells and allow for growth

Unit 1 Learning Objectives: Chemistry and Cell Biology in Anatomy & Physiology

Guida di studio - Domande di pratica

Study guide - Flashcard