B3 - Living and growing

Question 1 of 27

1

What do mitochondria do?

Select one of the following:

They're the site of respiration in the cell
They're the site of protein synthesis in the cell
They produce enzymes
They're the site of photosynthesis in the cell

Explanation

Question 2 of 27

1

The liver has few mitochondria

Select one of the following:

True
False

Explanation

Question 3 of 27

1

Where in the cell are the ribosomes found?

Select one of the following:

In the cytoplasm
In the nucleus
In all parts of the cell

Explanation

Question 4 of 27

1

What is a gene and what does it do?

Select one or more of the following:

A section of a chromosome made of DNA
A trouser made of denim
The characteristics expressed by an individual
It codes for a particular protein
It allows protein synthesis to occur outside of the nucleus

Explanation

Question 5 of 27

1

What are the complementary base pairings?

Select one of the following:

A-T, C-G
A-G, C-T
G -T, A-C
A-A, C-C, T-T, G-G

Explanation

Question 6 of 27

1

How does protein synthesis occur outside of the nucleus when DNA can't leave the nucleus?

Select one of the following:

mRNA carriers a copy of the DNA to the ribosomes
The gene splits from the DNA and goes to the ribosomes
The ribosomes come into the nucleus

Explanation

Question 7 of 27

1

What does meiosis produce?

Select one of the following:

2 haploid cells
4 haploid cells
2 diploid cells
4 diploid cells

Explanation

Question 8 of 27

1

The cells produced from mitosis are genetically identical

Select one of the following:

True
False

Explanation

Question 9 of 27

1

What is mitosis used for?

Select one or more of the following:

Growth
To make gametes
Repair
Sexual reproduction
Asexual reproduction

Explanation

Question 10 of 27

1

How does DNA replicate?

Select one or more of the following:

1. A double helix unzips to form two single strands of DNA
1. It pairs up with another strand of DNA
1. Half of the bases are removed from the DNA
2. New complementary base pairs join up with the existing ones
2. The two strands wind back together but in a different order

Explanation

Question 11 of 27

1

Is this meiosis or mitosis?

Select one of the following:

Meiosis
Mitosis

Explanation

Question 12 of 27

1

What are the advantages of being multicellular?

Select one or more of the following:

you can grow larger
it allows cell differentiation
organisms can become more complex
you have spares in case some cells die

Explanation

Question 13 of 27

1

When an organism becomes multicellular it must have...

Select one or more of the following:

communication systems between cells
a system to supply cells with nutrients
a system to control exchanges between cells
a larger surface area

Explanation

Question 14 of 27

1

What is metabolic rate?

Select one of the following:

The sum of all of the reactions occurring in the body
How quickly you can digest food
The rate at which you respire

Explanation

Question 15 of 27

1

Why do changes in temperature and pH affect respiration?

Select one of the following:

Because respiration is controlled by enzymes
Because muscles are slower when they're hot
The oxygen content in the air changes in different pHs

Explanation

Question 16 of 27

1

What are the ethical issues with cloning animals?

Select one or more of the following:

people think it's wrong to interfere with nature
cloning animals will cause mutants that revolt against humans, e.g. the wererabbit
Cloning people will make someone that is not a real individual and that is wrong

Explanation

Question 17 of 27

1

Cloning plants is easier because plant cells retain the ability to differentiate

Select one of the following:

True
False

Explanation

Question 18 of 27

1

The first stage of genetic engineering is to insert a gene into another organism

Select one of the following:

True
False

Explanation

Question 19 of 27

1

What are the ethical issues of genetically engineering?

Select one or more of the following:

People are worried about the health risks of genetically engineered food
People are worried that genetically engineered food wont taste nice
People are worried that genetically modified plants/animals will disrupt the natural ecosystems
Some people think it's morally wrong to create new life forms or move genes between species
Some people are worried that the animal will lose connections with its friends if it is genetically modified and its friends aren't

Explanation

Question 20 of 27

1

Nuclear transfer can be used to clone animals

Select one of the following:

True
False

Explanation

Question 21 of 27

1

What are the uses of cloning animals?

Select one or more of the following:

Mass producing animals with desired characteristics, e.g. cows that produce a lot of milk
Producing lots of animals that have been genetically modified to provide human products
producing human embryos to provide stem cells for research and therapy

Explanation

Question 22 of 27

1

The right ventricle has a thicker layer of muscle around it than the left ventricle

Select one of the following:

True
False

Explanation

Question 23 of 27

1

What does the Aorta do?

Select one of the following:

Transport oxygenated blood around the body from the heart
Transport blood from the heart to the lungs
Transport de-oxygenated blood from the body to the heart
Transport de-oxygenated blood from the heart to the body

Explanation

Question 24 of 27

1

The tricuspid valve is on the right side of the heart

Select one of the following:

True
False

Explanation

Question 25 of 27

1

Why are there valves in the heart?

Select one of the following:

To prevent backflow
To prevent forward flow
There are no valves in the heart

Explanation

Question 26 of 27

1

What are the advantages of a double circulatory system?

Select one or more of the following:

It allows blood to be pumped at a higher pressure
Blood can be pumped faster
The blood doesn't have to travel as far

Explanation

Question 27 of 27

1

What are the differences between plant growth and animal growth?

Select one or more of the following:

Plant cells retain the ability to differentiate
Plants can keep growing forever
Animals can keep growing forever
Plant cells mainly grow by enlarging whereas humans grow by cell division

	Created by Nicole Saville over 10 years ago

Biology Quiz on B3 - Living and growing, created by Nicole Saville on 18/05/2014.

B3 - Living and growing

B3 - Living and growing

Question 1 of 27

What do mitochondria do?

Select one of the following:

Explanation

Question 2 of 27

The liver has few mitochondria

Select one of the following:

Explanation

Question 3 of 27

Where in the cell are the ribosomes found?

Select one of the following:

Explanation

Question 4 of 27

What is a gene and what does it do?

Select one or more of the following:

Explanation

Question 5 of 27

What are the complementary base pairings?

Select one of the following:

Explanation

Question 6 of 27

How does protein synthesis occur outside of the nucleus when DNA can't leave the nucleus?

Select one of the following:

Explanation

Question 7 of 27

What does meiosis produce?

Select one of the following:

Explanation

Question 8 of 27

The cells produced from mitosis are genetically identical

Select one of the following:

Explanation

Question 9 of 27

What is mitosis used for?

Select one or more of the following:

Explanation

Question 10 of 27

How does DNA replicate?

Select one or more of the following:

Explanation

Question 11 of 27

Is this meiosis or mitosis?

Select one of the following:

Explanation

Question 12 of 27

What are the advantages of being multicellular?

Select one or more of the following:

Explanation

Question 13 of 27

When an organism becomes multicellular it must have...

Select one or more of the following:

Explanation

Question 14 of 27

What is metabolic rate?

Select one of the following:

Explanation

Question 15 of 27

Why do changes in temperature and pH affect respiration?

Select one of the following:

Explanation

Question 16 of 27

What are the ethical issues with cloning animals?

Select one or more of the following:

Explanation

Question 17 of 27

Cloning plants is easier because plant cells retain the ability to differentiate

Select one of the following:

Explanation

Question 18 of 27

The first stage of genetic engineering is to insert a gene into another organism

Select one of the following:

Explanation

Question 19 of 27

What are the ethical issues of genetically engineering?

Select one or more of the following:

Explanation

Question 20 of 27