what is alternating current

Electric current that reverses direction

carries water upward from the roots to every part of a plant

What is transpiration?

The loss of water vapour from the leaves and stems of plants

What is translocation?

The movement of dissolved sugars through a plant

what is an active site?

an area on an enzyme that binds to a substance in a reaction

As substrate concentration increases enzyme action ....

Increases up to saturation point

Animal cells and plant cells have:

Nucleus, cytoplasm, ribosomes, mitochondria

What is Direct Current

electric current that flows in one direction

for proteins and it turns purple

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10sc5 enzymes and power

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Questions 25

Answers

1
What are stem cells?
Specialised cells in plants
Specialised cells in animals
Unspecialised cells in plants
Unspecialised cells in animals
2
Does the substrate have to be specific to the active site?
Both
Yes
No
Nonexistent
3
Name a type of catalyst?
enzyme
pipsin
Deoxyribonuclese
Tipsin
4
What is electrical current?
The flow of charges
The power of a circuit
The energy in a circuit
The push on electrons
5
What is structure D of the enzyme complex?
competitive inhibitor enzyme
active site
substrate
enzyme
6
What is the current year?
1920
No one knows
2021
2020
7
what is alternating current
electric current that cant be transferred
Electric current that reverses direction
electric current that is non reusable
electric current that flows in one direction
8
Catalysts get used up during reactions-true or false?
True
False
9
Xylem
carries plants upward from the roots to every part of a water
carries plants upward from the roots to every part of a glucose
carries glucose upward from the roots to every part of a plant
carries water upward from the roots to every part of a plant
10
Which of these is a neutralisation reaction?
Acid + Alkali -> Salt + Hydrogen
Acid + Metal -> Salt + Hydrogen
There is no such thing as a neutralisation reaction
Acid + Alkali -> Salt + Water
11
What is transpiration?
The process of water being transported from soil to roots
The movement of water around a plant
The opening and closing of stomata
The loss of water vapour from the leaves and stems of plants
12
Protease works in the...
Pancreas and small intestine
Stomach and small intestine
Small intestine only
Salivary glands, pancreas and small intestine
13
What is translocation?
The movement of water through a plant
The movement of oxygen through a plant
The movement of carbon dioxide through a plant
The movement of dissolved sugars through a plant
14
What is the region of an enzyme that binds to a substrate?
Synthesis
Active Transport
Hydrolysis
Active SIte
15
what is an active site?
the area that is most active in a cell
an area on an enzyme that binds to a substance in a reaction
a gym?
a biology word
16
Which is Iodine?
Io
Li
I
Id
17
Current is measured in...
amps
cm
18
A catalyst does what?
Increases the reaction rate
Changes the products of the reaction
Slows down the reaction
19
Function of amylase?
Breaks down enzymes
Breaks down fatty acids
Starch breaks down the enzymes
Breaks down starch
20
As substrate concentration increases enzyme action ....
Increases until Substrate concentration becomes limiting
Increases up to optimum then decreases
Increases up to saturation point
Increases
21
Lipase is made in the...
Pancreas and small intestine
Stomach and small intestine
Small intestine only
Pancreas only.
22
Animal cells and plant cells have:
Nucleus, cytoplasm, ribosomes, mitochondria
Nucleus, chloroplasts, ribosomes
Nucleus, cellulose cell wall, cytoplasm
Nucleus, cytoplasm, ribosomes, vacuole
23
Iodine is used to test foods for what?
Fats
Protein
Fibre
Starch
24
What is Direct Current
electric current that is non reusable
electric current that cant be transered
electric current that flows in one direction
electric current that can reverse direction
25
The Biuret test is
for glucose and it turns red
for proteins and it turns purple
for glucose and it turns purple
for proteins and it turns red

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