Biochemistry/Cells Quiz
Preview:
How many hydrogen atoms are there in a water molecule?
A. 0
B. 1
C. 2
D. 3
Two or more atoms chemically bonded together are called a
A. atom
B. element
C. molecule
D. mixture
Osmosis is the diffusion of _____ across a membrane
A. glucose
B. NaCl
C. proteins
D. water
Which region of an atom has a negative charge?
A. The nucleus
B. Both nucleus and electron cloud
C. The neutrons
D. The electron cloud
Elements are made of
A. many types of atoms
B. the periodic table
C. one type of atom
D. molecules
Which subatomic part of an atom gives it a positive charge?
A. Neutron
B. Proton
C. Electron
D. Nucleus
Identify the structure that is indicated by the arrow in the image.
A. cell wall
B. vacuole
C. chloroplast
D. nucleus
What is unique about carbon and its bonding ability?
A. It can bond with any element because it has 1 valence electron
B. It can only bond with other carbon atoms
C. It can form up to four different bonds because it has 4 valence electrons
D. It can break down bonds in other molecules
Macromolecules are often POLYMERS. What are polymers?
A. Really large molecules made from smaller molecules
B. Small building blocks
C. Inorganic materials
D. Large molecules made from oxygen
Which of the following, found ONLY in plant cells, provides structure?
A. cell wall
B. chloroplast
C. nucleus
D. vacuole
What do vacuoles do?
A. They give the cells their shape.
B. They protect the cell.
C. They are the brain of the cell.
D. They are used for storage.
All living things are made up of…
A. cells
B. cell tissues
C. organ
D. organ systems
What type of bond is formed when atoms share electrons?
A. Covalent
B. Ionic
C. Hydrogen
D. Polyatomic
A process for removing large quantities toxins and waste from the cell is
A. exorcism
B. exocytosis
C. endocytosis
D. endoplasmic reticulum
Passive transport is called “passive” because it occurs WITHOUT
A. cause.
B. energy.
C. a concentration gradient.
D. a cell wall.
