ANSWERS | GRADED A+
What is the typical result of mitosis in humans?
Ans- Two diploid cells
How does water affect the temperature of a living thing?
Ans- Water keeps temperature stable
Which of the following is not a product of the Krebs cycle?
Ans- Oxygen
What kind of bond connects sugar and phosphate in DNA?
Ans- Covalent Bond
What is the second part of an organism's scientific name?
Ans- Species
How are lipids different than other organic molecules?
Ans- They are not water soluble
Which of the following is not found within a bacterial cell?
Ans- mitochondria
Which cell organelle functions to transport materials from the endoplasmic reticulum
throughout the cell?
Ans- Golgi apparatus
Which of the following are the distinct organelles that produce cell energy?
Ans- mitochondrion and chloroplast
Which component of the cell contributes to the protection, communication, and passage
of substances into and out of the cell?
Ans- cell membrane
Which of the following is a protein?
Ans- hemoglobin
, Which of the following structures is not involved in translation?
Ans- DNA
Which of the following is necessary for cell diffusion?
Ans- water
How many different types of nucleotides are there in DNA?
Ans- four
Which of the following cell types has no nucleus?
Ans- red blood cells
Which hormone is produced by the pineal gland?
Ans- melatonin
What is the name of the organelle that organizes protein synthesis?
Ans- ribosome
During which phase is the chromosome number reduced from diploid to haploid?
Ans- Meiosis I
A molecule of water is bonded with another molecule of water by what type of bond?
Ans- Hydrogen
Which of the following is a benefit of the intermolecular hydrogen bonding of water?
(Select all that apply.)
Ans- Water has a relatively high specific heat value.
Water has strong cohesive and adhesive properties.
Polarity of water allows it to act as a versatile solvent.
Of all the molecules that are significant to biology, which of the following are considered
the most important?
Ans- carbohydrates, lipids, protein, nucleic acids
The cell membrane consists of a bilayer of phospholipids with proteins, cholesterol, and
glycoproteins. This bilayer creates a hydrophobic region between two layers of lipids,
making it which of the following?
Ans- selectively permeable
What are the two catabolic pathways that lead to cellular energy production?