Question 1

What is the name of the organelle responsible for producing ribosomal RNA (rRNA) and assembling ribosomal subunits in eukaryotic cells?

Accepted Answer

Nucleolus

Answer

Vacuole

Answer

Perixosome

Answer

Lysosome

Question 2

What is the process by which plants convert light energy into chemical energy stored in glucose?

Accepted Answer

Photosynthesis

Answer

Fermentation

Answer

Cellular respiration

Answer

Oxidative phosphorylation

Question 3

What is the main function of the ribosomes in a cell?

Accepted Answer

To synthesize proteins by translating mRNA

Answer

To produce ATP through aerobic respiration

Answer

To package proteins for transport

Answer

To store genetic information in the form of DNA

Question 4

What is the role of the enzyme helicase in DNA replication?

Accepted Answer

To unwind the double-stranded DNA helix

Answer

To initiate DNA replication by adding a primer

Answer

To proofread newly synthesized DNA strands

Answer

To join Okazaki fragments together

Question 5

What is the role of chlorophyll in photosynthesis?

Accepted Answer

To capture light energy and convert it into chemical energy

Answer

To break down glucose into ATP

Answer

To absorb carbon dioxide from the air

Answer

To release oxygen into the atmosphere

Question 6

What is the primary function of the Golgi apparatus in a cell?

Accepted Answer

To modify, sort, and package proteins for transport

Answer

To store genetic information in the form of DNA

Answer

To produce ATP through cellular respiration

Answer

To synthesize lipids for cell membranes

Question 7

Which type of selection favors individuals at both extremes of a trait, leading to the reduction of intermediate phenotypes?

Accepted Answer

Disruptive selection

Answer

Sexual selection

Answer

Directional selection

Answer

Stabilizing selection

Question 8

What is the function of the enzyme DNA polymerase?

Accepted Answer

To synthesize new DNA strands by adding nucleotides to a pre-existing strand

Answer

To transcribe DNA into RNA

Answer

To break down DNA molecules

Answer

To repair damaged DNA strands

Question 9

Which of the following organelles is responsible for cellular respiration?

Accepted Answer

Mitochondria

Answer

Endoplasmic reticulum

Answer

Golgi apparatus

Answer

Ribosomes

Question 10

Which process involves the production of genetically identical offspring from a single parent?

Accepted Answer

Asexual reproduction

Answer

Crossing over

Answer

Sexual reproduction

Answer

Meiosis

Question 11

What is the function of the endoplasmic reticulum in a cell?

Accepted Answer

It plays a role in protein and lipid synthesis.

Answer

It produces energy through cellular respiration.

Answer

It stores genetic information in the form of DNA.

Answer

It regulates water and ion balance within the cell.

Question 12

What is the function of the chloroplast in plant cells?

Accepted Answer

It is the site of photosynthesis, where sunlight is converted into energy.

Answer

It stores genetic information in the form of DNA.

Answer

It synthesizes proteins for cell growth and repair.

Answer

It regulates the movement of organelles within the cell.

Question 13

What is the role of the Golgi Apparatus in a cell?

Accepted Answer

It modifies, sorts, and packages proteins and lipids for transport.

Answer

It stores genetic information in the form of DNA.

Answer

It produces ATP through cellular respiration.

Answer

It carries out photosynthesis in plant cells.

Question 14

What is the primary function of the cell membrane?

Accepted Answer

Regulate the passage of substances into and out of the cell.

Answer

Control the movement of organelles within the cell.

Answer

Synthesize proteins for cellular processes.

Answer

Store genetic information in the form of chromosomes.

Question 15

What is the function of the ribosomes in a cell?

Accepted Answer

Protein synthesis

Answer

DNA replication

Answer

Cellular respiration

Answer

Lipid synthesis

Question 16

Which scientist proposed the theory of evolution by natural selection?

Accepted Answer

Charles Darwin

Answer

Alfred Russel Wallace

Answer

Gregor Mendel

Answer

Jean-Baptiste Lamarck

Question 17

What is the scientific name for the process by which a cell divides into two daughter cells?

Accepted Answer

Mitosis

Answer

Binary fission

Answer

Cytokinesis

Answer

Meiosis

Question 18

Which scientist is credited with discovering the structure of DNA?

Accepted Answer

James Watson and Francis Crick

Answer

Rosalind Franklin

Answer

Gregor Mendel

Answer

Charles Darwin

Question 19

What is the process by which plants convert sunlight into energy?

Accepted Answer

Photosynthesis

Answer

Fermentation

Answer

Respiration

Answer

Transpiration

Question 20

Which organelle is known as the 'powerhouse' of the cell?

Accepted Answer

Mitochondria

Answer

Golgi Apparatus

Answer

Endoplasmic Reticulum

Answer

Nucleus

Question 21

What is the term for the process by which water moves across a semipermeable membrane to equalize concentrations on either side?

Accepted Answer

Osmosis

Answer

Active transport

Answer

Diffusion

Answer

Endocytosis

Question 22

What is the primary function of the ribosomes in a cell?

Accepted Answer

Protein synthesis

Answer

Glycogen storage

Answer

Lipid synthesis

Answer

ATP production

Question 23

Which of the following is NOT a characteristic of enzymes?

Accepted Answer

They are consumed in the reaction

Answer

They catalyze specific reactions

Answer

They are specific in their action

Answer

They lower the activation energy of a reaction

Question 24

What is the function of the Golgi apparatus in eukaryotic cells?

Accepted Answer

Processing and packaging proteins for transport

Answer

Storing genetic information in the nucleus

Answer

Producing ATP through cellular respiration

Answer

Breaking down cellular waste and debris

Question 25

What is the name of the process by which a cell divides into two daughter cells with identical genetic material?

Accepted Answer

Mitosis

Answer

Binary fission

Answer

Meiosis

Answer

Budding

Question 26

Which of the following is a characteristic of prokaryotic cells?

Accepted Answer

Absence of a true nucleus

Answer

Multiple linear chromosomes

Answer

Presence of membrane-bound organelles

Answer

Large size

Question 27

Which of the following is responsible for carrying genetic information from the nucleus to the ribosomes for protein synthesis?

Accepted Answer

Messenger RNA (mRNA)

Answer

DNA

Answer

Ribosomal RNA (rRNA)

Answer

Transfer RNA (tRNA)

Question 28

Which scientist is credited with proposing the theory of evolution by natural selection?

Accepted Answer

Charles Darwin

Answer

Alfred Russel Wallace

Answer

Gregor Mendel

Answer

Jean-Baptiste Lamarck

Question 29

What is the process by which plants convert sunlight into chemical energy?

Accepted Answer

Photosynthesis

Answer

Glycolysis

Answer

Cellular respiration

Answer

Fermentation

Question 30

Which of the following organelles is responsible for the production of ATP in eukaryotic cells?

Accepted Answer

Mitochondria

Answer

Endoplasmic reticulum

Answer

Lysosome

Answer

Golgi apparatus

Question 31

What is the function of the ribosomes in a cell?

Accepted Answer

Protein synthesis

Answer

Storage of genetic information in the nucleus

Answer

Energy production through cellular respiration

Answer

Regulation of cell division

Question 32

What is the role of the enzyme amylase in the digestive system?

Accepted Answer

Breaking down starch into smaller sugar molecules like maltose

Answer

Emulsifying fats for better digestion

Answer

Breaking down proteins into amino acids

Answer

Absorbing water from digested food

Question 33

What is the function of the mitochondria in a cell?

Accepted Answer

Producing ATP through cellular respiration

Answer

Storing genetic material in the nucleus

Answer

Regulating cell shape and movement

Answer

Synthesizing proteins for cellular functions

Question 34

What is the function of the enzyme helicase in DNA replication?

Accepted Answer

Unwinding the DNA double helix to expose the template strands

Answer

Regulating gene expression by modifying histones

Answer

Catalyzing the formation of phosphodiester bonds between nucleotides

Answer

Proofreading the DNA sequence for errors

Question 35

What is the function of the chloroplasts in plant cells?

Accepted Answer

Converting light energy into chemical energy through photosynthesis

Answer

Regulating cell growth and division

Answer

Producing ATP through cellular respiration

Answer

Storing excess water and nutrients

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