100% Pass | Latest Update 2026/2027 | Graded
A+.
Which of the following is not recycled but is lost from ecosystems? - ANSWER
energy
Which of the following is a producer? - ANSWER -oak tree
Humans are ______. - ANSWER -Consumers
Which of the following structures can perform all the activities required for life? -
ANSWER -Cells
An object at rest has no ______ energy, but it may have ______ energy resulting
from its location or structure. - ANSWER -kinetic... potential
The principle that energy cannot be created or destroyed is known as ______. -
ANSWER -conservation of energy
Anything that prevents ATP formation will most likely ______. - ANSWER result
in cell death
Usually, enzymes are ______. - ANSWER -proteins
The sum total of all the chemical reactions that occur in organisms is called
______. - ANSWER -metabolism
, Enzymes increase the rate of a reaction by ______. - ANSWER -decreasing
activation energy
Relative to prokaryotic cells, eukaryotic cells are usually ______. - ANSWER
Larger and more complex
Humans convert approximately ______ of the energy stored in food to useful
work. - ANSWER -34%
Ten kilocalories are equivalent to ______ calories. - ANSWER -10,000
Energy is transferred from ATP to other molecules by transferring a(n) ______. -
ANSWER -phosphate group
Humans are composed of ______ cells. - ANSWER -Eukaryotic
Which of the following is an autotroph? - ANSWER -pine tree
Photosynthesis contributes to plant growth by _____. - ANSWER -taking in
carbon dioxide and making sugars (carbohydrates)
Within the inner membrane of a chloroplast, interconnected sacs of membrane
called ______ are suspended in a thick fluid called the ______. - ANSWER
thylakoids... stroma
What is the function of stomata? - ANSWER -gas exchange
What type of chemical bond joins the bases of complementary DNA strands? -
ANSWER -hydrogen