Cell as the Building Block of Life
What is the smallest unit of life?
The cell
Which type of cell lacks a nucleus?
Prokaryotic
What is the name of the most recent Mars rover to land on Mars (2021)
Perseverance
Which organelle is the “powerhouse” of the cell?
Mitochondria
What model describes the cell membrane?
Fluid mosaic model
the theory that states all living things are made of cells.
Cell Theory
Are bacteria eukaryotic or prokaryotic
Prokaryotic
What does the “H” in pH stand for?
Potential of hydrogen
Where does protein synthesis occur?
Ribosomes
What type of molecules make up the bilayer?
Phospholipids
theory that states all living things are made of cells (hierarchy)
cell-tissue-organ-organ system-organism
Name one structure present in eukaryotes but absent in prokaryotes
Nucleus (or membrane-bound organelles)
What is the capital city of Canada?
Ottowa
Which organelle modifies and packages proteins?
Golgi apparatus
What is the function of membrane proteins (Name 3)?
Transport, receptors, enzymes, cell recognition
What part of cell theory explains how new cells are formed?
Cells arise from pre-existing cells
Which group generally has larger, more complex cells?
Eukaryotes
Which year did the Berlin Wall fall?
1989
Which organelle is responsible for lipid synthesis
Smooth endoplasmic reticulum
Why is the membrane described as “selectively permeable”?
It allows some substances to pass while restricting others
What are the requirements for cell survival
energy, gas exchange, water, nutrients, remove wastes
Compare DNA structure in prokaryotic and eukaryotic cells.
Prokaryotes have circular DNA; eukaryotes have linear DNA in a nucleus
2
Explain the difference between rough and smooth ER.
Rough ER has ribosomes and synthesises proteins; smooth ER synthesises lipids
Explain how cholesterol affects membrane fluidity.
It stabilises membrane fluidity across hot and cold temperatures