MIDTERM EXAM: BIOLOGY

Front

Energy

Back

ability to do work

Front

What is the biological importance of the molecule adenosine triphosphate (ATP)?

Back

provides chemical energy

Front

What occurs during the Krebs cycle?

Back

breaking down pyruvate

Front

Which is an autotroph? Options: daisy, earthworm, mushroom, wolf

Back

daisy

Front

Identify the relationship between photosynthesis and cellular respiration.

Back

The products of one process are used as reactants by the other process.

Front

Light-absorbing molecules such as chlorophyll are called

Back

pigments.

Front

Where in the cell does the Krebs cycle occur? Options: chloroplast, cytoplasm, mitochondrion, nucleus

Back

mitochondrion

Front

Electrons are _________ charged and circulate in energy orbitals around the nucleus, whereas protons are _________ charged particles that reside in the nucleus.

Back

negatively, positively

Front

________ bonds are formed when one atom donates an electron to another atom, whereas ____________ bonds are formed when two atoms share a pair of electrons.

Back

ionic, covalent

Front

What does the image above show?

Back

a chemical reaction