Q: Which equation best represents the transfer and transformation of energy in living systems?

$ \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 considered a property of living organisms?

Accepted Answer

Random molecular movement without regulation

Question 2

The cell is considered the basic unit of life because:

Accepted Answer

It is the smallest structure capable of performing all activities required for life

Question 3

Which statement best describes the difference between prokaryotic and eukaryotic cells?

Accepted Answer

Prokaryotic cells lack membrane-enclosed organelles, while eukaryotic cells contain them

Question 4

Which of the following best illustrates the concept of 'form fits function' in biology?

Accepted Answer

The streamlined shape of a bird's wing enabling flight

Question 5

All living organisms use the same genetic code. This fact supports which fundamental biological theme?

Accepted Answer

Unity and diversity of life

Question 6

Which of the following is an example of an emergent property?

Accepted Answer

The ability of a multicellular organism to move, which individual cells cannot do alone

Question 7

A scientist hypothesizes that a certain protein is involved in memory formation. Which step of the scientific method would involve making predictions about the effects of removing this protein?

Accepted Answer

Making predictions

Question 8

Which equation best represents the transfer and transformation of energy in living systems?

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 9

Which scenario best demonstrates the use of the scientific method in biology?

Accepted Answer

A researcher observes that mice with a mutated gene have poor memory, hypothesizes the gene is involved in memory, and tests this by creating knockout mice

Question 10

Which of the following is a correct hierarchy of biological organization from smallest to largest?

Accepted Answer

Organelle, cell, tissue, organ, organism

Question 11

A mutation in the DNA of a cell leads to a change in the protein produced. This is an example of:

Accepted Answer

The expression and transmission of genetic information

Question 12

Which of the following best describes an open system in biology?

Accepted Answer

An organism exchanges energy and matter with its environment

Question 13

Which of the following is a real-world application of CRISPR technology as described in the study materials?

Accepted Answer

Creating mouse models to study human diseases

Question 14

Which of the following is a plausible prediction based on the hypothesis that immune cells are involved in the development of Alzheimer's disease?

Accepted Answer

Reducing immune cell activity in the brain may decrease Alzheimer's symptoms

Question 15

Which of the following best explains why all cells are enclosed by a membrane?

Accepted Answer

To regulate the movement of substances in and out of the cell

Question 16

Which process is most directly responsible for the transmission of genetic information from parent to offspring?

Accepted Answer

DNA replication

Question 17

Which of the following is an example of how blood vessel degradation can affect brain health?

Accepted Answer

Reduced blood flow leading to decreased oxygen and nutrient delivery to neurons

Question 18

Which of the following best describes the role of DNA in cells?

Accepted Answer

DNA stores heritable genetic information used to direct cellular activities

Question 19

Which of the following is a correct application of the concept 'form fits function' at the molecular level?

Accepted Answer

The specific shape of an enzyme allows it to catalyze a particular chemical reaction

Bio Sci 93: From DNA to Organisms – Syllabus and Course Introduction Study Notes

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