Question 1

Which of the following best describes the relationship between the levels of organization in the human body?

Accepted Answer

Cells form tissues, tissues form organs, and organs form organ systems.

Question 2

A patient is experiencing inadequate blood delivery to the cardiac muscle. Which type of feedback mechanism is most likely involved in this scenario?

Accepted Answer

Positive feedback

Question 3

Which anatomical term correctly matches the common name for the body region 'brachial'?

Accepted Answer

Upper arm

Question 4

If a solution has a pH of 3, which of the following statements is correct?

Accepted Answer

It is acidic and has a high concentration of hydrogen ions ($$H^+).$$

Question 5

Which chemical reaction is an example of a synthesis reaction?

Accepted Answer

$$N + 3H \rightarrow NH_3$

Question 6

Which of the following best explains why oxygen is essential for human life?

Accepted Answer

Oxygen is necessary for cellular respiration to generate ATP.

Question 7

A molecule of DNA contains which of the following base pairs?

Accepted Answer

Cytosine (C) pairs with Guanine (G)

Question 8

Which organelle is responsible for the synthesis of proteins in a cell?

Accepted Answer

Ribosome

Question 9

A cell is observed to have a large number of mitochondria. What is the most likely function of this cell?

Accepted Answer

Energy production through ATP synthesis

Question 10

Which of the following best describes the fluid mosaic model of the plasma membrane?

Accepted Answer

A flexible bilayer of phospholipids with embedded proteins.

Question 11

During mitosis, which phase is characterized by the alignment of chromosomes along the equator of the cell?

Accepted Answer

Metaphase

Question 12

Which of the following is a function of epithelial tissue?

Accepted Answer

Covering and lining surfaces of the body

Question 13

A patient has a deficiency in potassium ions ($$K^+). $$Which of the following is most likely affected?

Accepted Answer

Nerve impulse transmission and muscle contraction

Question 14

Which of the following best describes a covalent bond?

Accepted Answer

A bond formed by the sharing of electrons between atoms.

Question 15

Which of the following is the correct formula for a disaccharide formed from glucose and fructose?

Accepted Answer

$$C_{12}H$$_{22}$$O_{11}$

Question 16

Which of the following best explains the role of ATP in cellular work?

Accepted Answer

ATP releases energy by breaking high-energy phosphate bonds.

Question 17

A solution with a pH of 8 is considered:

Accepted Answer

Basic (alkaline)

Question 18

Which of the following is a function of the Golgi apparatus?

Accepted Answer

Processing and packaging secretory products

Question 19

Which of the following best describes the role of enzymes in the body?

Accepted Answer

Enzymes accelerate chemical reactions.

Question 20

Which of the following statements about phospholipids is correct?

Accepted Answer

Phospholipids have hydrophilic heads and hydrophobic tails.

Anatomy & Physiology: Foundational Concepts and Levels of Organization

Guida di studio - Domande di pratica