MCAS Do Now Day 1

Question 1

Maltose is a carbohydrate molecule that provides energy to plants early in their life cycle. Which elements are most common in a molecule of maltose?

Answer 1

carbon and hydrogen

Question 2

Many enzymes are found in the cytoplasm of human body cells. These enzymes would be expected to function optimally at which of the following temperatures and pH values?

Answer 2

37°C (98° F) and pH 7

Question 3

Carbohydrates, lipids, proteins, and nucleic acids are organic molecules essential for life. Which of the following elements makes the large structures of these organic molecules possible?

Answer 3

carbon

Question 4

In cells, aerobic respiration (cellular respiration in the presence of oxygen) is more efficient than anaerobic respiration (cellular respiration in the absence of oxygen). This is because aerobic respiration produces more of which of the following substances?

Answer 4

ATP

Question 5

An English doctor is given credit for developing the modern terrarium in the 1800s. The doctor kept some plants in a sealed glass jar containing soil and air. The plants survived in the sealed jar for four years. What two processes allowed the plants to cycle nutrients and survive in the sealed jar?

Answer 5

photosynthesis and cellular respiration

Question 6

Beginning with one parent cell, how many daughter cells are typically produced from one mitotic division?

Answer 6

2

Question 7

The common marmoset is a small primate. A typical egg cell of a female marmoset contains 23 chromosomes.How many chromosomes does a typical sperm cell of a male marmoset contain?

Answer 7

23 chromosomes