Quizizz Week #7

Most of the reactions by which energy from carbohydrates is released for use by the cell take place within the

• mitochondria

• ribosomes

• nuclei

• vacuoles

Substance X directly supplies energy for various life functions, as shown in the diagram below. Which substance is represented by X in the diagram?

• ATP

• glucose

• DNA

• starch

According to the graph, which statement is true concerning the growth of the plants?

• The plants in the pot with only 5 plants grew to be an average of 40 cm tall in 30 days.

• The plants in the pot with only 10 plants grew to be an average of 30 cm tall in 20 days.

• The plants in the pot with 15 plants grew an average of 20 cm taller after a period of 10 days.

• The plants in the pot with 20 plants grew an average of 20 cm taller after a period of 40 days.

The dependent variable for this experiment was

• the number of plants per pot

• time in days

• average plant growth

• the amount of water per pot

A small lizard spends the morning hours lying in the sunlight until its body temperature rises. Later on in the day, the lizard rests in a shady area until its body temperature cools. This type of behavior is important to

• maintain homeostasis

• detect variations

• attract mates

• obtain nutrients

The diagram represents

• cellular differentiation

• dynamic equilibrium

• gene interaction

• biological evolution

An experiment is carried out to determine how different pH values of soil will affect the growth of tomato plants. In this experiment, the dependent variable could be the

• height of the tomato plants

• pH of the soil

• specific variety of tomato plants used

• pH of enzymes in tomato leaf cells

The type of organic molecule that is being synthesized is

• DNA

• starch

• protein

• fat

Which statement is an accurate observation that can be made based on this trail of footprints?

• The individuals were running from a predator.

• The volcano was about to erupt again.

• One individual was much taller than the other.

• One individual had larger feet than the other

Since the early 1990s, proton pump inhibitors (PPIs) have been widely used to treat acid refl ux disease. Although clinical tests in the 1980s deemed PPIs to be safe for humans, in 2012 the FDA announced warnings that long-term use of PPIs could increase the risk of bone fractures, kidney disease, and some intestinal infections.

Which statement best explains why the safety of PPIs is now in question when clinical experiments in the 1980s provided evidence that they were safe?

• Researchers have been able to collect more data than were available in the 1980s.

• Fewer people had acid reflux in the 1980s compared to today.

• The medication containing PPIs has changed since the 1980s when tests were done.

• The original experiments in the 1980s used only test animals and did not use human subjects.