Questions from practice test 1 Flashcards
What components can be found in a cell wall?
Cellulose, pectin & hemicellulose
Stacks of thylakoids are known as:
Granum
Which type of movement across a membrane requires an input of energy?
Active Transport
In prokaryotes, transcription and translation can occur simultaneously. How is this possible?
There is no nuclear envelope in prokaryotes
Which of the following is commonly used to track movement within the cells?
GFP
green fluorescent proteins
the term Amphipathic refers to:
having polar and non polar regions
the outer membrane of the nuclear membrane is continuous with the structure:
Membrane of the ER
Where is the cytochrome C usually found?
IMM
- in apoptosis it gets leaked from the mitochondria into the cytoplasm
Where are the H+ ions pumped during step 1 of oxidative phosphorylation
The intermembrane space
What are the functions of the nuclear pore complex
enables movement of molecules into and out of the nucleus
proton gradients are used by which of the following to produce ATP
ATP synthase
why is membrane fluidity critical to cell function
flexibility, dynamic interactions of membrane components, membrane modifications & structural support
Lipid rafts are:
areas of membrane enriched in certain lipids
Are lysosomes acidic or basic?
Acidic
the formation of the ribosomal subunits takes place in:
nucleolus
