Q: Which equation correctly represents the hydrolysis of ATP to release energy?

$$ \mathrm{ATP} + \mathrm{H}_2\mathrm{O} \rightarrow \mathrm{ADP} + \mathrm{P}_i + \text{energy} $$

Question 1

Which of the following best illustrates the concept of emergent properties in biology?

Accepted Answer

A group of heart cells working together to pump blood, producing a function not seen in individual cells.

Question 2

Place the following levels of biological organization in the correct order from smallest to largest: cell, tissue, organ, organism.

Accepted Answer

Cell, tissue, organ, organism

Question 3

A scientist observes that plants grow faster when exposed to blue light. She proposes that blue light increases the rate of photosynthesis. Which part of the scientific method does this statement represent?

Accepted Answer

Hypothesis

Question 4

Which of the following statements about scientific theories is correct?

Accepted Answer

Theories are broad explanations supported by a large body of evidence.

Question 5

A student claims, 'All mammals have hair. This animal is a mammal, so it must have hair.' What type of reasoning is this?

Accepted Answer

Deductive reasoning

Question 6

Which of the following best defines an isotope?

Accepted Answer

Atoms with the same number of protons but different numbers of neutrons.

Question 7

Why is carbon considered versatile in forming biological molecules?

Accepted Answer

It can form up to four covalent bonds with other atoms.

Question 8

Which of the following statements about water is correct?

Accepted Answer

Hydrogen bonds between water molecules cause cohesion.

Question 9

Sweating cools the body primarily because:

Accepted Answer

Water absorbs heat from the body as it evaporates, utilizing the heat of vaporization.

Question 10

Which equation correctly represents the hydrolysis of ATP to release energy?

Accepted Answer

$$ \mathrm{ATP} + \mathrm{H}_2\mathrm{O} ightarrow \mathrm{ADP} + \mathrm{P}_i + 	ext{energy} $$

Question 11

Which of the following best describes the difference between kinetic and potential energy in a biological context?

Accepted Answer

Kinetic energy is the energy of motion, such as muscle contraction; potential energy is stored energy, such as in ATP.

Question 12

Which of the following statements about lipids is correct?

Accepted Answer

Lipids are hydrophobic molecules that are not true polymers.

Question 13

Which process is responsible for building biological polymers such as proteins and nucleic acids?

Accepted Answer

Dehydration synthesis

Question 14

A patient is diagnosed with a genetic disorder that alters the primary structure of a protein. Which level of protein structure is directly affected?

Accepted Answer

Primary structure

Question 15

Which of the following statements correctly compares DNA and RNA?

Accepted Answer

DNA is usually double-stranded; RNA is usually single-stranded.

Question 16

Which of the following best explains why glycogen is more readily mobilized for energy in animals than starch is in plants?

Accepted Answer

Glycogen is more highly branched than starch, allowing faster enzymatic breakdown.

Question 17

Which of the following is an example of negative feedback regulation in the human body?

Accepted Answer

Shivering to increase body temperature when cold.

Question 18

Which of the following best describes a controlled experiment?

Accepted Answer

An experiment in which all variables are kept constant except one.

Question 19

Which of the following statements about hydrogen bonds is correct?

Accepted Answer

Hydrogen bonds are weak attractions between a hydrogen atom and an electronegative atom.

Question 20

A researcher wants to test the effect of a new fertilizer on plant growth. She sets up two groups: one receives the fertilizer, the other does not. What is the independent variable in this experiment?

Accepted Answer

Type of fertilizer used

Unit 1 Study Notes: Introduction to Biology & Chemistry of Life

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드