Q: Which equation correctly represents the overall reaction for aerobic cellular respiration?

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

Question 1

Which of the following is NOT one of the seven basic characteristics of life as described in the study materials?

Accepted Answer

Photosynthesis

Question 2

In the hierarchy of biological organisation, which level comes directly after 'organelles'?

Accepted Answer

Cells

Question 3

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

Accepted Answer

A hypothesis must be testable and falsifiable.

Question 4

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

Application of fertilizer

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 confounding factor in an experiment studying the effect of exercise on heart rate?

Accepted Answer

Age of participants

Question 7

Which chemical bond involves the complete transfer of electrons from one atom to another?

Accepted Answer

Ionic bond

Question 8

What is the main reason saturated fats are solid at room temperature while unsaturated fats are liquid?

Accepted Answer

Saturated fats have stronger van der Waals forces due to straight chains.

Question 9

Which functional group acts as a base and can pick up H+ from the surrounding solution?

Accepted Answer

Amino group

Question 10

Which macromolecule is primarily responsible for catalysis and transport in cells?

Accepted Answer

Proteins

Question 11

Which equation correctly represents the overall reaction for aerobic 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 12

During glycolysis, what is the net gain of ATP molecules per glucose molecule?

Accepted Answer

2 ATP

Question 13

Which molecule acts as the final electron acceptor in the electron transport chain during aerobic respiration?

Accepted Answer

O$$_2$$

Question 14

Which process allows plants to minimize photorespiration by spatially separating carbon fixation and the Calvin cycle?

Accepted Answer

C4 pathway

Question 15

Which cellular structure is present in all cells and is responsible for protein synthesis?

Accepted Answer

Ribosome

Question 16

Which statement about prokaryotic cells is correct?

Accepted Answer

Their DNA is stored in a nucleoid region.

Question 17

Which of the following is a distinguishing feature of plant cells compared to animal cells?

Accepted Answer

Presence of a cell wall

Question 18

Which transport mechanism across the plasma membrane requires energy input from the cell?

Accepted Answer

Active transport

Question 19

Which cytoskeletal element is involved in forming cilia and flagella and is composed of tubulin?

Accepted Answer

Microtubules

Question 20

Which type of inhibition involves an inhibitor binding to a site other than the enzyme's active site, causing a change in enzyme shape?

Accepted Answer

Non-competitive inhibition

Comprehensive Study Notes: Foundations of Biology – Science, Biomolecules, Respiration, Photosynthesis, and Cell Biology

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