27 Dec peroxisomes
BIOS251 Anatomy & Physiology I with Lab
Week 2 Chapter 3 Assessment
The cytoplasm of a cell is made up of which of the following?
the plasma membrane and cytosol
the cytosol and the nucleus
the plasma membrane and organelles
the cytosol and organelles
the organelles and the nucleus
In what part of a cell would you find most of a cell’s genetic material?
Plasma membrane
Cytoplasm
Nucleus
Mitochondrion
Centrosome
Which of the following best describes the basic structure of the plasma membrane of a cell?
lipid bilayer
glycocalyx
phospholipids
glycoproteins
selective permeability
Which membrane proteins are involved with the transport of molecules that otherwise would be unable to enter the cell?
linker proteins
glycoproteins
carrier proteins
peripheral proteins
receptor proteins
Dietary glucose is transported into a cell against its concentration gradient with the aid of membrane proteins called Na+/glucose _____.
aquaporins
channel proteins
receptor proteins
symporters
antiporters
What type of endocytosis allows cells to “drink” (take up tiny droplets of extracellular fluid)?
exocytosis
pinocytosis
phagocytosis
by means of clathrin-coated pits
transcytosis
Which of the following organelles plays an important role in phagocytosis (a type of endocytosis), contains a variety of digestive enzymes, and has transport pumps that maintain an acidic pH inside the organelle?
Lysosomes
Golgi complex
Peroxisomes
Mitochondria
Proteasomes
Which of the following organelles oxidizes toxic substances such as alcohol, and breaks down other potentially harmful by-products of metabolism?
lysosomes
peroxisomes
mitochondria
proteasomes
ribosomes
The nucleus of a cell contains one or more of these structures that are the site
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