$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} \rightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + \text{energy}$$

Question 1

Which of the following is NOT one of the seven basic characteristics of life?

Accepted Answer

Ability to photosynthesize

Question 2

Which level of biological organization is immediately more inclusive than 'organism'?

Accepted Answer

Population

Question 3

Which statement best describes the difference between a hypothesis and a theory in science?

Accepted Answer

A hypothesis is a tentative explanation that can be tested, while a theory is a broader explanation supported by evidence.

Question 4

In a controlled experiment, what is the primary purpose of the control group?

Accepted Answer

To serve as a standard for comparison with the experimental group

Question 5

Which of the following best describes a positive correlation?

Accepted Answer

As one variable increases, the other increases

Question 6

Which of the following is a trace element essential for life?

Accepted Answer

Iron

Question 7

Which property of water allows it to moderate temperature in living organisms?

Accepted Answer

High heat capacity

Question 8

Which of the following best describes the difference between saturated and unsaturated fatty acids?

Accepted Answer

Saturated fatty acids are solid at room temperature; unsaturated are liquid.

Question 9

Which of the following is the correct chemical equation for aerobic cellular respiration?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} ightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + 	ext{energy}$$

Question 10

Which process in cellular respiration produces the most ATP?

Accepted Answer

Oxidative phosphorylation (electron transport chain)

Question 11

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

Accepted Answer

Regulating the movement of substances into and out of the cell

Question 12

Which organelle is responsible for photosynthesis in plant cells?

Accepted Answer

Chloroplast

Question 13

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

Accepted Answer

Small cells have a larger surface area-to-volume ratio, allowing efficient exchange of materials.

Question 14

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

Accepted Answer

Eukaryotic cells have DNA in a nucleus; prokaryotic cells have DNA in a nucleoid region.

Question 15

Which of the following best describes the function of enzymes in biological systems?

Accepted Answer

Enzymes speed up chemical reactions by lowering activation energy.

Question 16

Which of the following is an example of feedback inhibition in metabolism?

Accepted Answer

The end product of a metabolic pathway inhibits an enzyme that acts early in the pathway.

Question 17

Which of the following statements about the scientific method is correct?

Accepted Answer

A hypothesis must be testable and falsifiable.

Question 18

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

Accepted Answer

It carries electrons to the electron transport chain.

Question 19

Which of the following is a correct statement about the Calvin cycle in photosynthesis?

Accepted Answer

It uses ATP and NADPH to convert CO$$_2$$ into sugars.

Question 20

Which of the following is a real-world example of the application of the scientific method?

Accepted Answer

A doctor tests whether a new drug lowers blood pressure by comparing treated and untreated patients.

Comprehensive Study Notes for BIOL195: The Smaller Side of Life (Augmented)

Study Guide - Practice Questions