ATP is important in living cells as it

provides a supply of usable energy for the cell

There is little fossil evidence of the earliest forms of life because the organisms

Did not have hard parts which would fossilise easily

The action of apoptosis

can involve the death of perfectly healthy cells

In prokaryotic organisms ...

translation occurs at the ribosome

Biogeography is the study of ...

the distribution of plants and animals in particular areas

An index fossil may be used for identifying

sedimentary rocks of the same age in different locations

Which one of the following is true of chemical signalling molecules?

They produce a response in target cells when released

Genetic transformation

involves plasmid uptake in bacteria

Hominids are believed to have evolved in Africa because ...

the oldest hominid fossils have been found in Africa

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2017 Unit 3&4 Biology Revision

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#VCE #Biology #Unit4 #Revision

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Questions 20

Answers

1
ATP is important in living cells as it
is required for osmosis
provides a supply of usable energy for the cell
provides one of the building blocks for lipid synthesis
is an important structural component of the plasma membrane
2
DNA is an example of an organic polymer. Which of the following is the monomer of DNA?
A nitrogenous base
Deoxyribose
A nucleic acid
A nucleotide
3
A restriction enzyme (endonuclease) ...
Will produce 2 fragments when it cuts a circular vector once
Joins pieces of DNA
Has a recognition sequence
Always produces sticky ends
4
There is little fossil evidence of the earliest forms of life because the organisms
Decayed quickly in the oxygen-rich atmosphere
Did not have hard parts which would fossilise easily
Evolved so quickly that they left few remains
Lived in water and were not preserved
5
Convergent evolution may produce similar structures in two different species.This may lead to
Embryology
Homology
Divergence
Analogy
6
The action of apoptosis
causes the production of new cells
is only initiated by signals exterior to a cell
can involve the death of perfectly healthy cells
involves the reuse of all parts of a dead cell
7
The founder effect and bottleneck are examples of ...
Selection pressures
Gene flow
Speciation
Genetic drift
8
In prokaryotic organisms ...
transcription occurs in the nucleus
translation occurs at the ribosome
chromosomes are usually linear
DNA is only found in plasmids
9
The shark (a fish) and the dolphin (a mammal) are an example of
species radiation
convergent evolution
divergent evolution
allopatric speciation
10
Evidence of hominid cultural evolution can be found in the fossil record.Evidence could include
Number of teeth present in the skull
Length of arm bones in comparison to leg bones
Position of the attachment of the spine to the head
Presence of stone tools
11
Biogeography is the study of ...
islands and their distances from continents
mountain ranges and rivers
the distribution of plants and animals in particular areas
fossil types and their relation to living organisms
12
An index fossil may be used for identifying
the age of rocks from the Jurassic period only
the absolute age of a sedimentary rock stratum
the oldest rocks in a series of strata
sedimentary rocks of the same age in different locations
13
Amplification of DNA in the polymerase chain reaction requires
Ribose sugar
DNA polymerase
Nucleotides of uracil
Amino acids
14
Random changes in allele frequencies in small populations are the result of
Genetic drift
Natural selection
Artificial selection
Parallel evolution
15
An organism with more than two copies of each chromosome in its somatic cells is described as..
Polypeptic
Polymorphic
Polyploid
Polygenic
16
Fossil skulls of Homo sapiens can be identified by the presence of a large brain case and a
Large jaw and a flat face
Large jaw and a sloping face
Small jaw and a flat face
Small jaw and a sloping face
17
Fossilisation of an organism is most likely to occur if the organism ...
is covered by a flow of lava
is encased in very acid sediment
has hard or bony structures
is soft-bodied
18
Which one of the following is true of chemical signalling molecules?
They only stimulate an effect on the cell that produced them
They produce a response in target cells when released
They always produce a rapid response.
Require carrier proteins to be transported through the body
19
Genetic transformation
occurs between cloned cells
is necessary for gene sequencing
requires stem cells
involves plasmid uptake in bacteria
20
Hominids are believed to have evolved in Africa because ...
monkey fossils were found in Africa
the oldest hominid fossils have been found in Africa
the most hominid fossils have been found in Africa
Africa is the oldest continent

2017 Unit 3&4 Biology Revision Flashcards | StudBud