Q: Which of the following equations correctly represents the process of osmosis?

$$ \\text{Osmosis:} \\quad \\text{Water moves from an area of low solute concentration to high solute concentration across a semipermeable membrane} $$

Question 1

Which of the following best describes the principle of homeostasis in human physiology?

Accepted Answer

The process by which the body maintains a stable internal environment despite changes in external conditions.

Question 2

Which statement correctly differentiates saturated and unsaturated fats?

Accepted Answer

Saturated fats have no double bonds between carbon atoms, while unsaturated fats have one or more double bonds.

Question 3

Which organelle is primarily responsible for the transport of proteins within the cell?

Accepted Answer

Endoplasmic reticulum

Question 4

A cell is placed in a hypertonic solution. What will most likely happen to the cell?

Accepted Answer

It will lose water and shrink.

Question 5

Which of the following is an example of passive transport across the plasma membrane?

Accepted Answer

Diffusion of oxygen from high to low concentration

Question 6

During protein synthesis, what is the role of mRNA?

Accepted Answer

It carries the genetic code from DNA to the ribosome for translation.

Question 7

Which phase of the cell cycle involves the replication of DNA?

Accepted Answer

S phase of interphase

Question 8

If a cell starts mitosis with 46 chromosomes, how many chromosomes will each daughter cell have after division?

Accepted Answer

46

Question 9

Which checkpoint in the cell cycle ensures that all chromosomes are properly attached to the spindle before proceeding to anaphase?

Accepted Answer

M checkpoint (spindle checkpoint)

Question 10

Which of the following best describes facilitated diffusion?

Accepted Answer

Movement of molecules across a membrane via a transport protein, without energy input.

Question 11

Which organelle contains the genetic material of the cell?

Accepted Answer

Nucleus

Question 12

Which of the following is a function of the plasma membrane?

Accepted Answer

Regulating the movement of substances into and out of the cell

Question 13

Which type of cellular transport requires energy input from the cell?

Accepted Answer

Active transport

Question 14

A patient is given an intravenous solution that is isotonic to their blood cells. What effect will this have on the cells?

Accepted Answer

No net movement of water; cells remain unchanged.

Question 15

Which of the following best explains why cancer cells divide uncontrollably?

Accepted Answer

They bypass normal cell cycle checkpoints.

Question 16

Which organelle is responsible for energy production in the cell?

Accepted Answer

Mitochondria

Question 17

Which of the following equations correctly represents the process of osmosis?

Accepted Answer

$$ \text{Osmosis:} \quad \text{Water moves from an area of low solute concentration to high solute concentration across a semipermeable membrane} $$

Question 18

Which of the following is NOT a function of the Golgi apparatus?

Accepted Answer

DNA replication

Question 19

During mitosis, which step involves the separation of sister chromatids?

Accepted Answer

Anaphase

Question 20

Which of the following best describes the structure of DNA in the nucleus?

Accepted Answer

Double helix composed of nucleotides

Anatomy & Physiology: Exam 1 Study Guide – Foundations, Chemistry, and the Cell

Guida di studio - Domande di pratica

Study guide - Flashcard