Follow and like us on our Facebook page where we post on the new release subject and answering tips and tricks to help save your time so that you can never feel stuck again.

Ctrl + F is the shortcut in your browser or operating system that allows you to find words or questions quickly.

Ctrl + Tab to move to the next tab to the right and Ctrl + Shift + Tab to move to the next tab to the left.

On a phone or tablet, tap the menu icon in the upper-right corner of the window; Select "Find in Page" to search a question.

Share Us

Sharing is Caring

It's the biggest motivation to help us to make the site better by sharing this to your friends or classmates.


The study of living organisms, including their structure, evolution, and interactions, providing insights into the complexity and diversity of life on Earth.
















Where will auxin accumulate in a root?

  • on the side exposed to most moisture
  • In the tip
  • on the upper side
  • on the lower side

Can’t be broken down by “ordinary” means to another substance


The process of decoding a mRNA message into a protein is known as ...

  • transcription
  • translation
  • replication
  • prescription

It is known as the basic unit of life.

  • Cell

Which of the following relationships exhibits mutualism?

  • rats - cats
  • algae - fungi
  • worms - humans
  • rice bird - hawk

Where would someone find a penguin or a polar bear

  • In an icy and cold land
  • In an icy and cold land
  • On a hot and tropical island
  • In a Zoo

What are the 5 kingdoms of living things classification ?

  • animal, plant, fungi, protist and monera
  • unicellular and multicellular

It contains the genetic material of the cell.

  • Nucleus
  • Golgi apparatus
  • Ribosome
  • Mitochondria

What are the applications of Biology? (You can choose more than one answer.)

  • Agriculture and Food Production
  • Agriculture and Food Production
  • Medicine and Nutrition
  • Environmental Relations

Which of the following DOES NOT belong to the group?

  • Carbohydrates
  • Hydrocarbons
  • Protein
  • Nucleic Acids

Which of the following is NOT a biotic component in the ecosystem?

  • Image:
  • Image:
  • Image:
  • Image:

ลำดับขั้นการกินอาหารของสิ่งมีชีวิต 4 ชนิด มีดังนี้ผู้ผลิต > ผู้บริโภคลำดับที่ 1 > ผู้บริโภคลำดับที่ 2 > ผู้บริโภคลำดับที่ 3ถ้าผู้ผลิตในห่วงโซ่อาหารนี้ได้รับพลังงานจากกระบวนการสังเคราะห์ด้วยแสงเป็น 30,000 กิโลแคลอรี ผู้บริโภคลำดับที่ 2 จะได้รับพลังงานจากการกินอาหารเป็นเท่าใด

  • 30 กิโลแคลอรี
  • 300 กิโลแคลอรี
  • 3,000 กิโลแคลอรี
  • 30,000 กิโลแคลอรี

Which of the following represents an abiotic component of the environment?

  • grass in the fields
  • sprouting mongo seeds
  • sea cow nursing its young
  • temperature in a mountain

What habitat does a dolphin live in

  • A pool
  • Lake
  • Water
  • Sea
  • Eustary


  • โพแทสเซียมเคลื่อนที่เข้าทางช่อง ungated channel ตลอดเวลา
  • โพแทสเซียมมีปริมาณภายนอกเซลล์สูงในระยะ hyperpolarization
  • Valtage – gated Na+ channel จะปิดพร้อมใช้งานในระยะ repolarization
  • ในระยะ hyperpolarization โซเดียมจะแพร่ออกจนทำให้ค่าความต่างศักย์ไฟฟ้าที่เยื่อหุ้มต่ำกว่าค่า RMP

In what phase do chromosomes align at the center of the cell in preparation for sorting?

  • Prophase
  • Metaphase
  • Anaphase
  • Telophase

เมื่อชาวสวนตัดกิ่งชบาเพื่อปักชำเตรียมจำหน่าย ในระยะแรกๆ ของการปักชำ พบว่ากิ่งตัด มีอาการเหี่ยว นักเรียนจะตั้งสมมุติฐานเกี่ยวเหตุการณ์นี้ว่าอย่างไร

  • มีการคายน้ำมากกว่าการดูดน้ำ
  • กิ่งตัดยังดูดน้ำไม่ได้ เพราะยังไม่มีราก
  • มีการใช้น้ำปริมาณมากในการสลายอาหารระดับเซลล์เพื่อสร้างราก
  • มีการใช้น้ำปริมาณค่อนข้างมากในการสังเคราะห์ด้วยแสงเพื่อสร้างอาหาร

The final step in the scientific method.

  • analyze data
  • form a hypothesis
  • test the hypothesis
  • gather information
  • make observations

True or falseRibosomes use the sequence of codons in mRNA to assemble amino acids into polypeptide chains.

  • True
  • False

Science is

  • Moral
  • Amoral
  • Immoral

Full form of DNA and RNA ?

  • Deoxyribonucleic Acid and Ribonucleic Acid
  • Darknucles Acid and Rednuclesnucles Acid
  • Image:
  • our teacher don't teach this

Fill in the blank: A camel would be found in which continent

  • Africa

The specific amino acids in a polypeptide and the order in which they are joined determine ...

  • the properties of a nucleic acid
  • the properties of a protein
  • the properties of a ribose sugar molecule

The RNA polymerase core enzyme converts into a holoenzyme on the addition of the _________ subunit.

  • α
  • β
  • β’
  • σ

What is a control in an experiment?

  • An element that remains unchanged or unaffected by other variables.
  • A quantity that does not change.

The following are abiotic factors that may affect the population of organisms EXCEPT:

  • drought
  • earthquakes
  • predators
  • typhoons

Which of the following is an abiotic factor that may affect the population of organisms?

  • parasites
  • predators
  • food availability
  • extreme temperatures

The fourth step in the scientific method.

  • analyze data
  • test the hypothesis
  • form a hypothesis
  • gather information
  • make an observation

Biology is the study of ?

  • Brain
  • Social media
  • Life
  • i don't know

The two Xs are on the same side.


น้ำตามี เอนไซม์ชนิดใด ในการย่อยผนังเซลล์แบคทีเรีย

  • Lysozyme

Where does the process of photosynthesis occur?

  • Cytosol
  • Thylakoid
  • Nucleus
  • Stomata

Which of the following is a Hypothesis?

  • All organisms are composed of cells, and new
  • cells only come from preexisting cells.
  • All organisms have a common ancestor, but
  • each is adapted to a particular way of life.
  • Raising children in very clean environment will have risk of allergies and auto immune disease.
  • Energy cannot be created or destroyed; the total quantity of energy in the universe stays the same.

What does a carnivore eat

  • Humans
  • Plants
  • Meat and Plants
  • Meat

จะไม่มีขบวน selective permeable ใน organell ใด

  • mitochondria
  • endoplasmic reticulum
  • vacuole
  • ribosome

จากแผนภูมิแห่ง นักเรียนจึงคาดการณ์ว่า "แหล่งน้ำที่ 2 น่าจะพบตัวอ่อนแมลงน้ำกลุ่มที่ถูกกล่าวถึง ในบทความนี้จำนวนมากที่สุด" การคาดการณ์เป็นไปได้ว่าหรือไม่ เพราะเหตุใด

  • เป็นไปได้เพราะค่า Do ต่ำแสดงถึงน้ำที่น่าเสีย ทำให้มีอาหารของตัวอ่อนแมลงน้ำมาก
  • เป็นไปได้เพราะค่า Do ต่ำ แสดงถึงน้ำที่มีคุณภาพดี ทำให้ตัวอ่อนแมลงน้ำจำนวนมาก
  • เป็นไปไม่ได้ เพราะค่า Do ต่ำ แสดงถึงน้ำที่มีคุณภาพดี ทำให้ตัวอ่อนแมลงน้ำเป็นเหยื่อของสัตว์น้ำได้ง่าย
  • เป็นไปไม่ได้เพราะด่า Do ต่ำ แสดงถึงน้ำที่เน่าเสีย ทำให้ตัวอ่อนแมลงน้ำมีโอกาสรอดชีวิตน้อยลง

Do you remember how many steps of scientific method does a scientist need to do to come up with a scientific explanation? How many steps are there?

  • 4

How confident are you in your knowledge of protein synthesis?

  • Not confident, yet. I need to study more and ask for help.
  • Somewhat confident, but I need to study to learn more.
  • I am confident in my knowledge and ready for the test!
  • I am so confident that I could teach my peers about it!

List down the 7 most common functional groups



  • Image:
  • Image:
  • Image:
  • Image:

These cells do not have a true nucleus.

  • Prokaryotic cell
  • Eukaryotic cell
  • Plant cell
  • Nerve cell

Does Science can answer everything?

  • Yes
  • No

Biosphere is the biggest type of ecosystem

  • Yes
  • No

What animal would not survive in a desert climate

  • African Hunting Dog
  • Panda
  • Camel
  • Iguana


  • มีชั้นเพปติโดไกลแคนบาง
  • มีกรดไทโคอิคเป็นองค์ประกอบ
  • โครงสร้างผนังเซลล์ไม่ซับซ้อน
  • ไม่มีข้อใดถูกต้อง

Which of the following shows the correct sequence for the scientific method inquiry?

  • Conclusion, Experimentation, Hypothesis, Observation
  • Observation, Experimentation, Hypothesis, Conclusion
  • Observation, Hypothesis, Experimentation, Conclusion
  • Experimentation, Conclusion, Observation, Hypothesis

Molecules have same molecular formula, but differ in atom arrangement


ประมาณ 2,400 ล้านปีมาแล้ว สิ่งมีชีวิตกลุ่มหนึ่งวิวัฒนาการให้มีกระบวนการสร้างอาหารที่ก่อให้เกิดแก๊สออกซิเจน ทำให้บรรยากาศของโลกเริ่มเปลี่ยนแปลงมีปริมาณออกซิเจนเพิ่มขึ้น สิ่งมีชีวิตนั้นคืออะไร

  • ไซยาโนแบคทีเรีย

Conducts H2O and minerals up from root


How many different amino acids does the genetic code contain?

  • 3
  • 64
  • 20
  • 23

_________ is a relationship between two or more groups of animals that compete for the same resources.

  • competition

Where does translation take place?

  • ribosome

What is technology?

  • refers to the process of exploring new knowledge methodically through observation and experiments.
  • refers to the continuous process of implementing knowledge.

นักเรียนคนหนึ่งไปทัศนศึกษาที่ต่างจังหวัดพบว่าถูกยุงกัดหลังจากนั้นมีไข้จับสั่นแล้วจึงไปโรงพยาบาลแพทย์วินิจฉัยว่าเป็นไข้มาลาเรียแพทย์อธิบายให้นักเรียนคนนี้ฟังว่าเกิดจากยุงเป็นพาหะของเชื้อไข้มาลาเรียนำเข้าสู่ร่างกาย จึงเป็นสาเหตุให้มีอาการของไข้จับสั่นความสัมพันธ์ระหว่างนักเรียนคนนี้แหละเชื้อไข้มาเลเรียเป็นความสัมพันธ์แบบใด

  • Parasite

Who first discovered biology?

  • Aristotle
  • Robert Whittaker
  • Oswald Avery

Humans and mosquitoes exhibit a _______________ relationship.

  • parasitism

What is a type of Relationship in ecosystems

  • Competition
  • Complicated
  • Competitive
  • Computer

Science is a way of ________________________________.

  • making sense of the natural world around us
  • human beings can find order in the natural
  • world

The β subunit of polymerase has a function of ____________

  • catalytic center

The first step in the scientific method.

  • Form a hypothesis
  • Analyze data
  • Make observations
  • Test the hypothesis
  • Gather information

Proteins are made by joining amino acids together into long chains called ...

  • polypeptides
  • amino acids
  • nucleic acids
  • carbohydrates

What is an experimental group?

  • A group separated from the rest of the experiment such that the independent variable being tested cannot influence results.
  • The group of participants who are exposed to the independent variable.

Biology is a natural science concerned with the study of _____________________.

  • Differential Equations
  • Force
  • Living Things
  • Atoms

Branch of chemistry that specializes in study of carbon compounds


-------- is Autotrophs.

  • plantae
  • fungi
  • human
  • animalia

Which enzyme is used in the unwinding of DNA?

  • Ligase
  • Topoisomerase
  • Helicase
  • Exonuclease

What is the study of Animals

  • Ecology
  • Biology
  • Cartography
  • Paleontology

What direction does the arrows point in a food chain

  • To the moon
  • The flow of the energy

Which is not Science?

  • Psychology
  • Botany
  • Cosmetology
  • Astrology
  • Astronomy

How many type of cells are there ? and there name ?

  • 2 types of cell prokaryotic and eukaryotic.
  • 2 types of cell unicellular and multicellular.
  • i don't know
  • 2 types of cell with cell wall and without cell wall.

Promote fruit ripening (positive feedback!); involved in apoptosis (shed leaves, death of annuals); response to mechanical stressomote fruit ripening (positive feedback!); involved in apoptosis (shed leaves, death of annuals); response to mechanical stress


Stem elongation, leaf growth, seed germination, flowering, fruit growth


What are constants in an experiment?

  • An element that remains unchanged or unaffected by other variables.
  • A quantity that does not change.

The way DNA, RNA, and proteins put together genetic information into action in cells is ...

  • transciption
  • gene suppresion
  • gene replication
  • gene expression

unicellular and multicellular are ------------

  • Eukaryotic
  • Prokaryotic

If Physics is Science then Engineering is also Science.

  • True
  • False

What is a control group?

  • The group of participants who are exposed to the independent variable.
  • A group separated from the rest of the experiment such that the independent variable being tested cannot influence results.

What is Qualitative Data?

  • Quantity, like number or measure
  • Quality, description

Mode of DNA replication is

  • Conservative and bidirectional
  • Semiconservative and unidirectional
  • Semiconservative and bidirectional
  • Conservative and unidirectional

_Select two animals that are apex predators

  • Crocodiles
  • Crocodiles
  • Rabbits
  • Boar
  • Snake
  • Humans

Zoology is the study of -----------

  • Animal



What is Quantitative Data?

  • Quantity, like number or measure
  • Quality, description

What is the advantage of phototropism?

  • a plant gets lighter for photosynthesis
  • a plant can germinate faster
  • a plant grows straighter
  • a plant has a stronger root

What is the central dogma of molecular biology?

  • RNA -> DNA -> Protein
  • Protein -> RNA -> DNA
  • DNA -> RNA -> Protein
  • DNA -> Protein -> RNA

who discovered 5 kingdom classification ?

  • Issac Newton
  • Albert Einstein
  • Robert Whittaker
  • Abdual Kalam

Which of the following correctly describes the relationship between an orchid and a tree?

  • The orchid is benefitted while the tree is harmed.
  • The orchid is harmed while the tree is benefitted.
  • The orchid is benefitted while the tress in unaffected.
  • The orchid and the tree both benefit from the relationship.

How is "Xx" categorized in genetics?

  • Homozygous dominant
  • Homozygous recessive
  • Heterozygous dominant
  • Heterozygous recessive

The third step in the scientific method.

  • make observations
  • gather information
  • form a hypothesis
  • test the hypothesis
  • analyze data

Presence of the heparin promotes transcription.

  • True
  • False

Which of the following processes does not occur in prokaryotes?

  • Transcription
  • Splicing
  • Translation
  • Replication

What Is not a kingdom

  • Anamalia
  • Fungi
  • Arthropods
  • Chordates

What is the name of a scientist that studies biology

  • Ecologist
  • Biologist
  • Scientist
  • Doctor

It is an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.

  • Microscope

Which part of the ribosome identifies the Shine – Dalgarno sequence?

  • Protein
  • 16S rRNA
  • 23S rRNA
  • 5S rRNA

Which of the following best describes the cells?

  • large compartments of the body that work to maintain a balance
  • arise from pre-existing cells.
  • a self-replicating material that is present in nearly all living organisms
  • all of the above

How does an explanation become a scientific explanation?

  • If everyone agrees and votes on it.
  • If your Biology lecturer said to believe it.
  • If the eldest in the society believes in it.
  • If it is measurable and testable over and over again and the result is always the same.
  • If it happens one time but probably will not happen again.

Which of the following statements is not applicable to viruses?

  • The virus replicates in a bacterial host
  • The protein coat of a virus does not enter the host cell
  • The genetic material is DNA or RNA
  • Virus replicate autonomously in the absence of host

How many bases long is a single codon?

  • 3

When is a polypeptide complete?

  • When a ribosome reaches a anticodon.
  • When a ribosome reaches a stop codon.
  • When introns are removed from the mRNA molecule.

Genetic information is transcribed from nucleotide sequences from __________ to __________.

  • mRNA, DNA
  • DNA, mRNA
  • DNA, tRNA
  • tRNA, mRNA

Which one of these organisms is a producer

  • Image:
  • Image:
  • Image:
  • Image:

What is biology

  • The study of earth
  • The study of the studying of the studying of the studying of the studying
  • The study of space
  • The study of plants and animals

What is a food web

  • A chain of animals that shows what animals eat who
  • A spider web full of food
  • A group of animals with lines pointing in the direction of which animals get eaten by who
  • A science thing

Each tRNA molecule has three unpaired bases, collectively called the ...

  • codon
  • anticodon
  • polypeptide

A codon cannot specify more than one amino acid.

  • True
  • False

Religion, aesthetics, and ethics are all ways that __________________________________________.

  • making sense of the natural world around us
  • human beings can find order in the natural
  • world

What is science?

  • refers to the process of exploring new knowledge methodically through observation and experiments.
  • refers to the continuous process of implementing knowledge.

Oxytocin สร้างขึ้นที่ตำแหน่งใด

  • Hypothalamus

โรคเบาหวาน เบาจืด และเบาเค็ม เกิดจากการหลั่งฮอร์โมน.................1.................., ......................2.............. และ ...................3................... ที่น้อยเกินไป ตามลำดับ

  • พาราไทรอยด์ / นอร์อะดรีนาลีน / วาโซเพรสซิน
  • เทสโทสเทอโรน / ไทโมซิน / ไอโอดีน
  • นอร์อะดรีนาลีน / วาโซเพรสซิน / แอลโดสเตอโรน
  • อินซูลิน / วาโซเพรสซิน / แอลโดสเตอโรน

Which of the following is considered as a biotic component of an ecosystem?

  • flood
  • sunlight
  • temperature
  • wildlife

--------- is the jelly like substance in cell

  • cytoplasm
  • water
  • mucus
  • Image:

It is known as the powerhouse of the cell.

  • ATP
  • Ribosome
  • Nucleus
  • Mitochondria

ระยะการแบ่งเซลล์ที่เกิดก่อนระยะในภาพนี้คือระยะใด และระยะสุดท้ายของการแบ่งเซลล์นี้คือระยะใด

  • Metaphase / Telophase
  • Metaphase/ Cytkinesis
  • Anaphase / Cytokinesis
  • Telophase/ Telophase II

How many variables should you test during an experiment?

  • One
  • Two
  • Three
  • Four
  • Five

What is a long period of inactivity and deceased metabolism that occurs in the winter months?

  • hibernation
  • adaptation
  • estivation
  • tarpor

What variables should you test in an experiment?

  • dependant, independent, controlled

In mRNA, what does each codon specify?

  • a nucleotide
  • an amino acid
  • an enzyme
  • an intron

Slight, fleeting attractions between atoms and molecules close together



  • endoskeleton พบเฉพาะในสัตว์มีกระดูกสันหลัง
  • Exoskeleton ของแมลงประกอบด้วยโปรตีนและคาร์โบไฮเดรตจำพวกไคติน
  • แมลงมี exoskeleton จึงต้องลอกคราบเมื่อร่างกายเจริญเติบโต
  • ไส้เดือนดินเป็นสัตว์ไม่มีกระดูกสันหลังที่อยู่บนบกมี hydrostatic skeleton


  • Semicircula canals

Who was the first to propose indirect interaction between mRNA template and amino acids to produce accurate ordering of amino acid in a polypeptide chain?

  • Paul C. Zamecnic
  • James Watson
  • Francis H. Crick
  • Mahlon B. Hoagland

How many RNA polymerases are present in a bacterial system?

  • 4
  • 2
  • 1
  • 3

What type of relationship is exhibited between these two organisms?

  • commensalism
  • mutualism
  • parasitism
  • predation

What is the difference between an independent and dependant variable?

  • Independent - Relies on other factors
  • Dependant - Stands alone, isn’t changed by other factors.
  • Independent - Stands alone, isn’t changed by other factors.
  • Dependant - Relies on other factors

Which one of these are an unwanted guest to Australia

  • Kangaroo
  • Hare
  • Toad
  • Dolphin

Allow plant to make relatively rapid & reversible responses


What are the three types of Symbiotic Relationships

  • Mutualism
  • Mutualism
  • Neturalism
  • Parasitic
  • Parasite
  • Commensalism

The second step of the scientific method.

  • Gather information
  • Make observations
  • Analyze data
  • Test the hypothesis
  • Form a hypothesis

What domain does all animals fall under

  • Eukarya
  • Archae
  • Fungi
  • Animalia

It has 4 valence electrons


Which one of these is an endangered animal

  • Asian Elephant
  • Amur Leopard
  • African Wild Dog
  • Spirit Bear
  • All of theese