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B2 - Cell Organisation all Questions & answers solved 100% accurately with Complete Solution Graded A+ latest version
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B2 - Cell Organisation all Questions & answers solved 100% accurately with Complete Solution Graded A+ latest version

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  • July 6, 2024
  • 11
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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B2 - Cell Organization
✅differentiation
How do cells become specialised?-

What are organ systems made of?-✅organs

What are organs made of?-✅tissue

What are tissues made of?-✅specialised cells

Def: organ system-✅a group of organs working together to carry out a
specific function

Eg: organ system- ✅digestive system
Def: organ- ✅group of tissues working together to carry out a specific
function

Eg: organ- ✅heart
Def: tissue-✅a group of similar cells working together to carry out a
specific function

What are the 3 types of tissue?-✅muscular, glandular, epithelial
What is the function of muscular tissue?-✅allows movement through
contracting

What is the function of glandular tissue?- ✅makes and secretes hormones
and enzymes

What is the function of epithelial tissue?-✅to cover parts of the body e.g
inside of gut

Def: enzyme- ✅biological catalyst

, How do enzymes work?- ✅lock and key theory
What is the optimum temperature for enzymes?-✅40°C
What is the (general) optimum pH for enzymes?-✅pH 7


✅
What happens if an enzyme is exposed to too high temps or high/low
pH- denatures

Def: denature-✅active site of an enzyme changes shape and substrate no
longer fits

RQ: enzyme activity- ✅amylase breakdown
✅pH of buffer solution
Independent variable of RQ: enzyme activity-

Dependent variable of RQ: enzyme activity-✅rate of amylase breakdown

How is rate of amylase breakdown measured?-✅how quickly iodine
solution turns blue-black

✅
What are the control variable of RQ: enzyme activity- concentration of
amylase solution, volume of amylase solution, temperature of solution

✅1000/ time
Formula: rate of reaction-

What are the 3 digestive enzymes?-✅amylase, protease, lipase

What is the process of amylase?-✅starch → simple sugars

Where is amylase made?-✅salivary glands, pancreas, small intestine

What is the process of protease?-✅proteins → amino acids

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