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Y10 iGCSE Biology so far... Flashcards | StudBud
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Y10 iGCSE Biology so far...
Y10 iGCSE Biology so far...
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A recap for #IGCSE #Edexcel #Biology from all of #section 2
Flashcards
41 cards
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Practice quiz
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Host live
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Questions
41
Answers
1
What is missing from the following equation for aerobic respiration?
Air
Oxygen
Sugar
Hydrogen
2
Osmosis refers to the movement of which molecules?
Glucose only
Water only
Water, glucose and amino acids
Water and glucose
3
Respiration is the chemical opposite of which reaction?
Esterification
Combustion
Photosynthesis
Distillation
4
Enzymes work on.....
Substrates
Subunits
Substances
Subsurfaces
5
The chemical used in a glucose test is...?
Silver nitrate
Benedict's
Iodine
Biuret's
6
The substrate will be reacted into the..
macromolecule
enzyme-substrate complex
desired product
sugar
7
An enzyme is specific to only one substrate because of the shape of its...
allotropic site
enzyme-substrate complex
active site
macromolecule
8
After the enzyme reacts with the substrate, the enzyme will not change shape. True or false?
True
False
9
Which process does this diagram show?
Diffusion
Active transport
Osmosis
Facilitated diffusion
10
What is the chemical formula for glucose?
C6H12O
C6H12O6
C6H12O6
C6H12O6
11
An animal cell does not have...
Permanent vacuole
Cell wall
Cytoplasm
Cell membrane
12
True or False - Low temperatures denature enzymes.
False
True
13
What colour is a NEGATIVE starch test?
Red
Blue
Yellow
Blue-black
14
What are carbohydrates made of?
carbon, hydrogen, and oxygen
sodium, carbon, and hydrogen
potassium, hydrogen, and oxygen
carbon, hydrogen, and nitrogen
15
Osmosis is water molecules moving from an area of ___ concentration to ___ concentration.
High to High
Low to High
Low to Low
High to Low
16
The chemical used in a starch test is...?
Benedict's
Silver nitrate
Iodine
Biuret's
17
Enzymes are made of...?
Nucleic Acid
Protein
Carbohydrate
Lipid
18
What stops a plant cell from bursting when a lot of water enters the cell?
cell membrane
vacuole
cell wall
cytoplasm
19
Which process does this diagram show?
Diffusion
Facilitated diffusion
Active transport
Osmosis
20
Which of these forms of transport requires energy?
Diffusion
Facilitated diffusion
Osmosis
Active transport
21
What word is missing from the equation below for aerobic respiration?
Hydrogen
Water
Air
Sugar
22
Where would you find cellulose?
in protozoa
in animal cells
in plant cells
in fungal cells
23
Where would you find mitochondria?
in plant cells
in fungal cells
in animal cells
in protozoa
24
If a glucose test is negative, it means...
The sample contains lipids
The sample contains proteins
The sample contains glucose
The sample contains starch
25
Starch is a polysaccharide that contains
many molecules of glucose.
None of the above
two molecules of glucose.
one molecule of glucose.
26
What colour is a POSITIVE starch test?
Yellow
Orange
Blue-black
Blue
27
Where does respiration happen in the human body?
In the eye
In the brain
All of the above
In the muscles
28
True or False? Respiration is the same as breathing?
True
False
29
The substrates bind with the enzyme at the..
Substrate place
Reaction site
Active site
Protein channel
30
What word is missing from the equation below for aerobic respiration?
Sugar
Hydrogen
Glucose
Air
31
Diffusion is molecules moving from an area of ___ concentration to ___ concentration.
High to High
Low to High
High to Low
Low to Low
32
What colour is a POSITIVE glucose test?
Red
Blue
Blue-black
Orange
33
Active transport is molecules moving from an area of ___ concentration to ___ concentration.
Low to High
High to Low
High to High
Low to Low
34
When an enzyme is placed in high temperatures or extreme pHs, it will become...
denatured
determined
destroyed
decapacitated
35
What colour is a NEGATIVE glucose test?
Red
Blue
Blue-black
Orange
36
Enzymes are catalysts, catalysts help to
speed up chemical reactions
stop chemical reactions
start chemical reactions
slow down chemical reactions
37
What are the building blocks of life?
Wooden blocks
Atoms
Cells
Blood
38
Which of the following does the body
NOT
need to respire?
Carbon Dioxide
Enzymes
Glucose
Oxygen
39
What is concentration? (in terms of biology)
The amount of water in a beaker.
When a student really focuses on something
The amount of substance in a defined space.
When particles are spread far apart.
40
Where do we get the glucose we use for respiration come from?
From our food
From our cells which photosynthesise
From our cells
We breathe it in
41
Where do we get the oxygen we need for respiration?
We breathe it in
From our cells photosynthesising
From our food
We breathe it out
