Q: If a cell spends 10 hours in G1, 5 hours in S, 3 hours in G2, and 2 hours in mitosis, what percentage of the cell cycle is spent in S phase? Use the formula $$\text{Percentage} = \frac{\text{S phase time}}{\text{Total cycle time}} \times 100.$$

$$\frac{5}{20} \times 100 = 25\%$$

Question 1

Which organelle is primarily responsible for producing ATP through cellular respiration in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 2

During the S phase of the cell cycle, which process occurs?

Accepted Answer

DNA is replicated

Question 3

A patient suffers a third-degree burn on the anterior surface of their right thigh. Which body region and quadrant does this injury primarily affect?

Accepted Answer

Right hypogastric region and right lower quadrant

Question 4

Which tissue type is specialized for rapid communication and consists of neurons and supporting cells?

Accepted Answer

Nervous tissue

Question 5

If a cell is placed in a hypotonic solution, what will happen to the cell?

Accepted Answer

It will swell and possibly burst due to water influx

Question 6

Which phase of mitosis is characterized by the alignment of chromosomes along the center of the cell?

Accepted Answer

Metaphase

Question 7

A patient is diagnosed with a fracture in the femur. Which directional term best describes the location of the femur relative to the tibia?

Accepted Answer

Proximal

Question 8

Which equation best represents the relationship between surface area ($$A) $$and volume ($$V) $$for a spherical cell, and why is this important for cell function?

Accepted Answer

$$A = 4\pi r^2$ and V$$ = \frac{4}{3}\pi $$r^3$$; surface area limits nutrient exchange

Question 9

Which body cavity contains the heart and lungs?

Accepted Answer

Thoracic cavity

Question 10

Which of the following best describes the order of structural organization in the human body, from simplest to most complex?

Accepted Answer

Cell, tissue, organ, organ system, organism

Question 11

A patient is experiencing pain in the left upper quadrant. Which organ is most likely affected?

Accepted Answer

Spleen

Question 12

Which skin layer is responsible for producing new keratinocytes?

Accepted Answer

Stratum basale

Question 13

Which bone is classified as a flat bone?

Accepted Answer

Sternum

Question 14

Which directional term describes the position of the nose relative to the ears?

Accepted Answer

Medial

Question 15

Which body system is primarily responsible for hormone production and regulation?

Accepted Answer

Endocrine system

Question 16

A cell undergoes mitosis but fails to complete cytokinesis. What is the result?

Accepted Answer

One cell with two nuclei

Question 17

Which of the following is NOT a function of epithelial tissue?

Accepted Answer

Support

Question 18

A patient with a burn that destroys both the epidermis and dermis but leaves underlying tissue intact has which type of burn?

Accepted Answer

Second-degree burn

Question 19

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

Accepted Answer

Golgi apparatus

Question 20

If a cell spends 10 hours in G1, 5 hours in S, 3 hours in G2, and 2 hours in mitosis, what percentage of the cell cycle is spent in S phase? Use the formula $$	ext{Percentage} = \frac{	ext{S phase time}}{	ext{Total cycle time}} 	imes 100.$$

Accepted Answer

$$\frac{5}{20} 	imes 100 = 25\%$$

ANP College Study Notes: Cells, Tissues, Integumentary System, and Body Organization

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