Online Assignments Flashcards
What type of bonds are primarily responsible for many unique properties of water ?
Hydrogen bonds
Match the following: A. Proteins B. nucleus acids C. Carbohydrates D. Lipids With, Monosaccharides Fatty acids Amino acids Nucleotides
C
D
A
B
Hydrophilic substances are resistant to dissolving in water
False
Which of the following are true about electrons ?
A. Electrons are positively charge subatomic particles
B. electrons orbit the nucleus of an atom
C. Electrons can occur in various shells
D. Electrons in outer shells have lower energy
E. electrons play an important role in bonding between atoms
F electrons are equally shared in non polar covalent bonds
B
C
E
F
A ______ is a incorrectly folded protein that can cause disease
Prion
What items/structures are common to all cells at some point in their life ?
Plasma membrane
Cytoplasm
DNA
All cells are composed of a single layer Of phospholipids true or false?
False
The rate at which a cell is able to acquire nutrients or get rid of wastes is dependent on the cells _______ While the amounts of nutrients needed and wastes produced by the cell depend on it’s ________ Therefore the ratio of these 2 Quantities Places a constraint on cell size
Surface area
Volume
Eukaryotic cells have their DNA enclosed within a ______ ?
Nucleus
Which of the following organelles is correctly matched with its function? Vacuoles, energy production Rough ER, protein synthesis Goldie bodies, lipid formation Mitochondria, photosynthesis Smooth ER, waste removal
Rough ER, protein synthesis
What organelles that are found in eukaryotic cells is thought to have evolved from an Endo symbiotic prokaryote?
Mitochondria chloroplast
All eukaryotic cells have a cell wall. True or false?
False
Which of the following would require transport proteins to cross a cell membrane?
Ions and glucose
