$\text{C}_6\text{H}_{12}\text{O}_6 + 6\ \text{O}_2 \rightarrow 6\ \text{CO}_2 + 6\ \text{H}_2\text{O} + \text{Energy}$

Question 1

Which of the following best describes an emergent property in biological systems?

Accepted Answer

A property that results from the arrangement and interaction of parts within a complex system.

Question 2

Which equation represents the overall process of cellular respiration?

Accepted Answer

$	ext{C}_6	ext{H}_{12}	ext{O}_6 + 6\ 	ext{O}_2 ightarrow 6\ 	ext{CO}_2 + 6\ 	ext{H}_2	ext{O} + 	ext{Energy}$

Question 3

Which of the following is a function of the Golgi apparatus in eukaryotic cells?

Accepted Answer

Modifying, sorting, and packaging proteins for secretion or delivery to other organelles.

Question 4

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

Accepted Answer

The cell will lose water and shrink.

Question 5

Which of the following statements about ATP is correct?

Accepted Answer

ATP is regenerated by the addition of a phosphate group to ADP using energy from catabolic reactions.

Question 6

Which of the following best explains why enzymes are highly specific for their substrates?

Accepted Answer

Enzymes have active sites with shapes and chemical properties complementary to their substrates.

Question 7

Which of the following is an example of feedback inhibition in metabolic pathways?

Accepted Answer

The end product of a pathway binds to an enzyme early in the pathway, inhibiting its activity.

Question 8

Which of the following is a major difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have a nucleus, while prokaryotic cells lack a nucleus.

Question 9

Which of the following is a property of water that contributes to Earth's suitability for life?

Accepted Answer

Water has a high specific heat, allowing it to moderate temperature.

Question 10

Which of the following best describes the role of NAD+ in cellular respiration?

Accepted Answer

NAD+ acts as an electron acceptor, becoming reduced to NADH.

Question 11

Which of the following is a correct statement about the second law of thermodynamics?

Accepted Answer

Every energy transfer or transformation increases the entropy of the universe.

Question 12

Which of the following is a function of the cytoskeleton in eukaryotic cells?

Accepted Answer

Maintaining cell shape and facilitating movement of organelles.

Question 13

Which of the following is a characteristic of passive transport across cell membranes?

Accepted Answer

It moves substances down their concentration gradient.

Question 14

Which of the following best describes the process of osmosis?

Accepted Answer

The diffusion of water across a semipermeable membrane.

Question 15

Which of the following is true about the Calvin cycle in photosynthesis?

Accepted Answer

It uses ATP and NADPH to reduce CO2 to sugar in the stroma.

Question 16

Which of the following is a real-world example of feedback regulation in biology?

Accepted Answer

The regulation of blood glucose levels by insulin.

Question 17

Which of the following is a property of phospholipids that is essential for cell membrane structure?

Accepted Answer

Phospholipids are amphipathic, having both hydrophilic and hydrophobic regions.

Question 18

Which of the following best describes the relationship between structure and function in biology?

Accepted Answer

The structure of a biological molecule or organ determines its function.

Question 19

Which of the following is a correct statement about the flow of energy in ecosystems?

Accepted Answer

Energy flows through ecosystems, entering as light and exiting as heat.

Biology: Introduction, Unifying Themes, and the Study of Life

Study Guide - Practice Questions