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Fun Biology Trivia Quiz

An interesting quiz on different aspects of Biology in general.

A multiple-choice quiz by ecstasybabe. Estimated time: 5 mins.

Author
ecstasybabe

Time
5 mins

Type
Multiple Choice

Quiz #
74,758

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
5 / 10

Plays
14443

Last 3 plays: kitter96 (7/10), Guest 98 (5/10), Coachpete1 (10/10).

One at a Time - Single Page - Timed Game

Question 1 of 10

1. How do enzymes catalyse reactions? Hint

They decrease the reaction energy and increase the activation energy.

They change potential energy to kinetic energy.

They change the activation energy.

They change kinetic energy into reaction energy.

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Question 2 of 10

2. Why does water provide a relatively stable external environment for aquatic organisms? Hint

It is transparent so light can pass through it

It has a high surface tension

Its boiling point is 100 degrees Celsius

Its temperature varies much less than air temperature

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Question 3 of 10

3. CH3CH2COOH is an example of which of these molecules? Hint

An amino acid

A tricarboxylic acid

An alkanoic (fatty) acid

A monosaccharide

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Question 4 of 10

4. The DNA of a particular cell is damaged so that the cell continues to divide uncontrollably. What is the possible result? Hint

AIDS

Down's syndrome

Coronary heart disease

Tumour Formation

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Question 5 of 10

5. Which of these structures is the smallest? Hint

A bacterium

A cell

A virus

A mitochondrion

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Question 6 of 10

6. What are enzymes in plant cells made from? Hint

Protein

Cellulose

Lipid

Starch

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Question 7 of 10

7. Compared to a diploid cell, how much genetic material would the nucleus of a haploid cell of the same organism contain? Hint

Half

Double

One quarter

The same amount

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Question 8 of 10

8. Which of these characteristics are shown by the gene controlling ABO blood groups? Hint

Sex linkage

Codominance

Sex determination

Polygenic inheritance

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Question 9 of 10

9. Which function is carried out by the Golgi apparatus? Hint

Synthesis of proteins

Endocytosis

Digestion of proteins

Modification of proteins for secretion

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Question 10 of 10

10. A woman is heterozygous for a recessive X-linked allele that causes haemophilia. Which statement is correct? Hint

She is a carrier of Haemophilia

None of the gametes she produces will have the allele that causes Haemophilia

All of the gametes she produces will have the allele which causes Haemophilia

She is codominant for Haemophilia genes

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Most Recent Scores

Nov 10 2024 : kitter96: 7/10
Nov 08 2024 : Guest 98: 5/10
Nov 08 2024 : Coachpete1: 10/10
Nov 07 2024 : Guest 115: 5/10
Nov 01 2024 : Guest 172: 3/10
Oct 20 2024 : Guest 174: 3/10
Oct 07 2024 : Guest 99: 7/10
Sep 28 2024 : brm50diboll: 10/10
Sep 27 2024 : Guest 66: 4/10

Score Distribution

Quiz Answer Key and Fun Facts

1. How do enzymes catalyse reactions?

Answer: They change the activation energy.

Enzymes decrease the activation energy (the energy which is needed to start off the reaction), and also increase the speed of the reaction.

2. Why does water provide a relatively stable external environment for aquatic organisms?

Answer: Its temperature varies much less than air temperature

The other three points are true of water but they do not take a part in providing a stable environment for aquatic animals.

3. CH3CH2COOH is an example of which of these molecules?

Answer: An alkanoic (fatty) acid

Tricarboxylic acids and amino acids share the same carboxyl group but have different functional groups joined to them. An example of a monosaccharide is glucose (C6H12O6).

4. The DNA of a particular cell is damaged so that the cell continues to divide uncontrollably. What is the possible result?

Answer: Tumour Formation

5. Which of these structures is the smallest?

Answer: A virus

6. What are enzymes in plant cells made from?

Answer: Protein

Enzymes in plant and animal cells are made from proteins.

7. Compared to a diploid cell, how much genetic material would the nucleus of a haploid cell of the same organism contain?

Answer: Half

An example of a haploid cell is an egg cell (gamete) which only contains half the genetic material of the mother's cells. A diploid cell is just a regular cell.

8. Which of these characteristics are shown by the gene controlling ABO blood groups?

Answer: Codominance

If a person has an Ai gene and a Bi gene, their blood type will be AB. This shows codominance. Codominance is where two differeent alleles both show themselves in the phenotype of a person. Another example would be in the gene for type of hair. There are two alleles: one for curly hair, and one for straight hair. Someone who is heterozygous for these alleles would have wavy hair.

9. Which function is carried out by the Golgi apparatus?

Answer: Modification of proteins for secretion

10. A woman is heterozygous for a recessive X-linked allele that causes haemophilia. Which statement is correct?

Answer: She is a carrier of Haemophilia

She is a carrier because haemophilia is a recessive trait and she only has one of the recessive alleles. However, in the case of males, one of the recessive alleles would make them a sufferer because it is carried on the X chromosome and males only have one X chromosome.
Did you know that there is a line of Haemophilia in the British Royal family?

Source: Author ecstasybabe

This quiz was reviewed by FunTrivia editor crisw before going online.
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