Biology Practice Test #4

Messenger RNA transfers information:

from DNA to ribosomes

Proteins are made of chains of:

amino acids

Bodybuilders are concerned with putting on a significant amount of muscle mass. Which biologic molecule would you recommend a bodybuilder increase consumption of to gain muscle mass?

Proteins

The color purple (P) is dominant in a plant. If you have a purple plant with an unknown genotype and cross it with a white plant (pp) and get offspring which are 100% purple, what is the genotype of the unknown plant?

PP

Alleles of the same type are called:

homozygous

In the hierarchic system of classification, which of the following is most inclusive?

Kingdom

In the Scientific Method, which of the following is a statement or explanation of certain events or happenings based on limited evidence?

Hypothesis

Which of the following statements about water is incorrect?

The polarity of water allows for covalent bonding between molecules.

Which of the following is not a benefit of the intermolecular hydrogen bonding of water?

A relatively low specific heat

How are phospholipids important in the function of cells?

They are important components of the plasma membrane.

Which of the following is found in animal cells but not plant cells?

centrioles

Grocery stores sometimes spray water on their produce to keep the vegetables looking fresh. The cells in these vegetables can be described as:

turgid

What is the function of the rough endoplasmic reticulum?

Protein synthesis and membrane production

Which of the following organelles is responsible for water balance and storage of inorganic ions in plants?

Vacuole

Which organelle is responsible for cellular respiration?

Mitochondria

Which type of organism is made up of prokaryotic cells?

bacteria

Which of the following is not a function of the cell membrane?

Transport of protein from the endoplasmic reticulum to other parts of the cell

All metabolic reactions in a cell are catalyzed by which of the following?

Enzymes

Which of the following is the best description of glycolysis?

It is the conversion of glucose into pyruvate

What is represented by the following formula?

C₆ H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂ O + ATP

Cellular respiration

Which of the following equations represents the simplified chemistry behind cellular photosynthesis?

6CO₂ + 6H₂O + Light energy → C₆H₁₂O₆ + 6O₂

Plants cannot perform photosynthesis without water. This is because:

water is an essential part of the light reactions in photosynthesis.

Which of the following happens in meiosis but not mitosis?

The homologous pairs of chromosomes exchange bits of DNA in a process called crossing over.

Which of the following happens in meiosis but not mitosis?

The homologous pairs of chromosomes are pulled apart by the spindle and brought to opposite ends of the cell.

In a human, how many chromosomes does the diploid parent cell have at the beginning of meiosis?

46

During which phase of cell reproduction are the chromosomes duplicated, and the cell prepares for division?

Interphase