
Biology Midterm 2022-2023
Authored by Ashley Simpson
Biology
10th Grade

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45 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Substance A is converted to substance B in a metabolic reaction. Which statement BEST describes the roles of an enzyme during this reaction?
It adjusts the pH of the reaction medium.
It provides energy to carry out the reaction.
It dissolves substance A in the reaction medium.
It speeds up the reaction without being consumed.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which example is an activity that a fish MOST LIKELY uses to maintain homeostasis within it body?
Using camouflage to avoid predators.
Feeding at night to regulate body temperature.
Moving to deeper water to regulate metabolic wastes.
Exchanging gases through its gills to regulate oxygen levels.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Scientists observed that the populations of top-level consumers in a particular ecosystem were rapidly decreasing. Further studies revealed that there was also a decline in producer productivity. Which other changes did the scientists most likely observe in the ecosystem?
increased producer diversity
decreased population size at all levels
decreased primary consumer populations only
increased primary and secondary consumer diversity
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Carbon can combine with many different elements but frequently combines with oxygen, hydrogen, and nitrogen to form organic molecules. Which statement best explains why carbon is able to form a large number of different molecules?
carbon forms only ionic bonds
carbon can form only ring structures
carbon can form four covalent bonds
carbon forms small, simple structures
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement correctly describes how a protein is formed?
a monosaccharide bonded to a side chain is broken apart
amino acids are bonded together in a long chain to form a new molecule
a molecule containing glycerol bonded to three fatty acids is broken apart
a nitrogenous base, a sugar, and a phosphate group combine to form a new molecule
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
A group of students is given a sample of an unknown substance. The students are asked to gather evidence to determine whether the substance is living or nonliving. The students take a small sample of the substance and observe it using a microscope. What characteristics of the substance that can be observed to indicate whether it is living or nonliving.
the substance is made up of water.
the substance responds to stimuli
the substance is made up of carbon atoms
the substance is green
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Most prokaryotes and eukaryotes maintain a reserve of ATP. Which feature of prokaryotes and eukaryotes makes the ATP reserve necessary?
they have cell membranes
they can change over time
they use energy to function
they have the ability to reproduce
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