The gamete plays an important role in sexual reproduction because it carries

half the genetic information of the parent.

In the kidney, water reabsorption occurs:

In the descending limb of the loop of Henle

Why is carbon dioxide removed from cells?

To prevent cells from becoming acidic

Which of the following statements best describes arteries?

Arteries are thick walled and muscular

What feature of prions distinguishes them from all other types of pathogens?

Prions do not contain nucleic acids.

Cilia prevent the entry of pathogens into the human body by

moving trapped pathogens to the mouth.

Which three processes lead to variation/variability within offspring?

Crossing over, Random segregation, sexual reproduction

How does a plant respond in order to keep cool on an extremely hot day?

It opens stomata in the leaves.

Which list shows pathogens in order of increasing size?

Prion, virus, bacterium, protozoan, macroparasite

Nitrogenous waste is at its highest concentration in

fluid in the collecting ducts of the kidney.

Why is carbon dioxide removed from cells?

To prevent cells from becoming acidic

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Year 12 Biology HSC Core Revision

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Questions 29

Answers

1
What type of cells are pictured?
Xylem
Phloem
2
In what process does U swap with T?
Protein Synthesis
DNA replication
Mitosis
3
How many days until your HSC Biology Exam?
29 Days
40 Days
34 Days
4
What is a role of the kidney in freshwater fish?
To remove water from the fish
To excrete concentrated urine from the fish
To decrease nitrogenous waste lost to the environment
To absorb salt from the environment
5
Which of the following provides evidence that supports the theory of evolution?
The fossil record
The DNA double helix
Clones
Punnet squares
6
What do Phagocytes do?
Eat stuff
Engulf and Destroy
Eat bacteria
7
What is the genotype of pure breeding plants?
Heterozygous
Homologous
Homozygous
Monohybrid
8
What effect will Antibiotics have on a virus?
None
It will get rid of it
Some
9
The gamete plays an important role in sexual reproduction because it carries
double the genetic information of the parent.
all of the genetic information of the parent.
half the genetic information of the parent.
genetic information from both parents.
10
What comes first
Translation
Transcription
11
Which of the following can cause an imbalance of microflora in humans?
Overuse of antibiotics
Consumption of genetically modified foods
Immunisation against different diseases
Excessive use of antiviral drugs
12
In the kidney, water reabsorption occurs:
In the descending limb of the loop of Henle
In the distal tubule
In the ascending limb of the loop of Henle
13
Why is carbon dioxide removed from cells?
To decrease osmosis
To allow oxygen to replace it
To prevent an increase in blood pH
To prevent cells from becoming acidic
14
Which of the following statements best describes arteries?
They contain blood flowing to the heart
Arteries are thick walled and muscular
they allow gases to diffuse through the walls
They contain valves
15
Which of the following will not affect the action of an enzyme?
Change in Temperature
Change in volume of substrate
Change in concentration of substrate
Change in pH
16
Antibodies are proteins that
are produced by T cells to kill disease-causing viruses.
bind with a specific antigen.
break down pathogens.
catalyse biochemical reactions.
17
What feature of prions distinguishes them from all other types of pathogens?
Prions are not cells.
Prions do not contain nucleic acids.
Prions cannot reproduce outside a host cell.
Prions do not contain DNA.
18
Cilia prevent the entry of pathogens into the human body by
producing secretions toxic to pathogens.
providing a protective body covering.
increasing circulation of blood to the infected area.
moving trapped pathogens to the mouth.
19
Which genotype below is Heterozygous?
TT
Tt
XY
tt
20
A Kangaroo Rat can spend its entire life without drinking water
True
False
21
Which three processes lead to variation/variability within offspring?
Mutation, fossil formation, DNA replication
Protein synthesis, mitosis, DNA replication
Crossing over, Random segregation, sexual reproduction
Sexual reproduction, DNA replication, protein synthesis
22
What is the average size of a red blood cell?
10 micrometres
7-8 micrometres
5 micrometres
23
What feature can be used to distinguish mature xylem cells from mature phloem cells?
Xylem cells have cell walls.
Xylem cells are located in the leaves.
Phloem cells are located in vascular bundles.
Phloem cells have a cytoplasm.
24
How does a plant respond in order to keep cool on an extremely hot day?
It grows more hairs on the surface of the leaves.
It opens stomata in the leaves.
It grows smaller leaves.
It decreases the number of stomata on the top of the leaves
25
Which list shows pathogens in order of increasing size?
Macroparasite, prion, protozoan, bacterium, virus
Prion, virus, bacterium, protozoan, macroparasite
Bacterium, prion, virus, protozoan, macroparasite
Virus, prion, bacterium, macroparasite, protozoan
26
Nitrogenous waste is at its highest concentration in
interstitial fluid in the cortex of the kidney.
plasma in the renal artery.
plasma in the renal vein.
fluid in the collecting ducts of the kidney.
27
Why is carbon dioxide removed from cells?
To prevent an increase in blood pH
To allow oxygen to replace it
To prevent cells from becoming acidic
To decrease osmosis
28
Which organelle below is only found in plant cells?
Mitochondria
Cell membrane
Vacuole
Cell Wall
29
How are lipids transported in mammalian blood?
They are part of the membrane of red blood cells.
They are dissolved in the blood.
They are attached to haemoglobin in red blood cells.
They are attached to proteins.

Year 12 Biology HSC Core Revision Flashcards | StudBud