Question 1

Which of the following best explains why cells are generally small in size rather than large?

Accepted Answer

Smaller cells have a higher surface area-to-volume ratio, which facilitates efficient exchange of materials with their environment.

Question 2

A scientist is using a microscope to observe the detailed internal structure of mitochondria. Which type of microscopy should they use?

Accepted Answer

Transmission electron microscopy (TEM)

Question 3

Which of the following statements about the plasma membrane is correct?

Accepted Answer

It is composed primarily of a phospholipid bilayer with embedded proteins.

Question 4

Which of the following best describes the function of the Golgi apparatus?

Accepted Answer

It modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Question 5

Which of the following is NOT a characteristic shared by all living things?

Accepted Answer

Ability to photosynthesize

Question 6

Which of the following best describes the difference between an element and a molecule?

Accepted Answer

An element consists of only one type of atom, while a molecule consists of two or more atoms bonded together.

Question 7

Which of the following best explains why water is considered a polar molecule?

Accepted Answer

The oxygen atom is more electronegative than the hydrogen atoms, creating a partial negative charge near the oxygen and a partial positive charge near the hydrogens.

Question 8

A solution has a pH of 3. Which of the following statements is true about this solution?

Accepted Answer

It is acidic because its pH is less than 7.

Question 9

Which of the following best describes the process of diffusion?

Accepted Answer

The movement of molecules from an area of higher concentration to an area of lower concentration.

Question 10

Which of the following is the correct order of steps in the scientific method?

Accepted Answer

Observation, hypothesis, experiment, analysis, conclusion

Question 11

Which of the following best describes the role of NADH in cellular respiration?

Accepted Answer

It acts as an electron carrier, transporting electrons to the electron transport chain.

Question 12

Which of the following statements about active transport is correct?

Accepted Answer

It requires energy in the form of ATP to move substances against their concentration gradient.

Question 13

A red blood cell is placed in an isotonic solution. What will happen to the cell?

Accepted Answer

It will remain the same size because there is no net movement of water.

Question 14

Which of the following is the most abundant element in the human body?

Accepted Answer

Oxygen

Question 15

Which protein complex is responsible for most ATP production during the electron transport chain?

Accepted Answer

ATP synthase

Question 16

Which of the following best describes the function of tight junctions in animal tissues?

Accepted Answer

They create a seal between adjacent cells to prevent the passage of materials.

Question 17

Which type of muscle tissue is found in the walls of the stomach?

Accepted Answer

Smooth muscle

Question 18

Which of the following statements about radioisotope technology is correct?

Accepted Answer

It is used in medical imaging and cancer treatment due to its ability to trace and target specific molecules.

Question 19

Which of the following best describes the relationship between negatively and positively charged elements?

Accepted Answer

Negatively charged elements (anions) are attracted to positively charged elements (cations) and can form ionic bonds.

Question 20

Which of the following is a connective tissue and where is it commonly found?

Accepted Answer

Adipose tissue; found under the skin and around organs

General Biology Exam 1 Study Guide: Chapters 1-4

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드