Q: During cellular respiration, glucose is oxidized and oxygen is reduced. Which equation correctly represents this process?

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

Question 1

Which of the following best describes the central dogma of molecular biology?

Accepted Answer

Information flows from DNA to RNA to protein.

Question 2

During cellular respiration, glucose is oxidized and oxygen is reduced. Which equation correctly represents this process?

Accepted Answer

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

Question 3

Which structure within the leaf is primarily responsible for photosynthesis?

Accepted Answer

Mesophyll cells

Question 4

Which of the following is an advantage of asexual reproduction in plants?

Accepted Answer

It allows rapid colonization of an area.

Question 5

How many autosomes and sex chromosomes are found in a human sperm cell?

Accepted Answer

22 autosomes and 1 sex chromosome

Question 6

In a monohybrid cross of pea plants with purple (P) and white (p) flowers, what is the expected phenotypic ratio in the F2 generation?

Accepted Answer

3 purple : 1 white

Question 7

Which property of DNA allows for both stability and mutability, enabling evolution?

Accepted Answer

The ability to replicate and occasionally mutate

Question 8

Which feature of the genetic code helps reduce the impact of point mutations?

Accepted Answer

It is redundant.

Question 9

What does an age structure diagram with a wide base indicate about a population?

Accepted Answer

The population is likely to grow rapidly in the future.

Question 10

Which domain includes organisms with cells that have a nucleus and membrane-bound organelles?

Accepted Answer

Eukarya

Question 11

Which level of biological organization is characterized by emergent properties such as the ability to pump blood, which is not present in individual cells?

Accepted Answer

Organ system

Question 12

Which type of chemical bond involves atoms sharing electron pairs?

Accepted Answer

Covalent bond

Question 13

Which property of water is responsible for surface tension and allows insects to walk on water?

Accepted Answer

Cohesion

Question 14

A solution with a pH of 2 has how many times more hydrogen ions than a solution with a pH of 4?

Accepted Answer

100 times

Question 15

Which macromolecule is NOT a polymer but forms aggregates that behave like polymers?

Accepted Answer

Lipid

Question 16

Which structure is found in prokaryotic cells but NOT in eukaryotic cells?

Accepted Answer

Plasmid

Question 17

Facilitated diffusion across a cell membrane is best described as:

Accepted Answer

Passive transport mediated by proteins

Question 18

Which process in the central dogma is catalyzed by ribosomes?

Accepted Answer

Translation

Question 19

Which cellular structure is the site of ATP synthesis during oxidative phosphorylation?

Accepted Answer

Inner mitochondrial membrane

Question 20

Which enzyme is responsible for synthesizing RNA from a DNA template during transcription?

Accepted Answer

RNA polymerase

Unit 1-4 Study Guide

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