Characteristics of Life/Scientific Method
The first forms of life on Earth were ________
What are microorganisms?
Which of the following is not a component of the endomembrane system?
mitochondrion
Golgi apparatus
endoplasmic reticulum
lysosome
What is the mitochondrion?
Which plasma membrane component can be either found on its surface or embedded in the membrane structure?
What are proteins?
A reducing chemical reaction ________.
What is adds an electron to the substrate?
A diploid cell has_______ the number of chromosomes as a haploid cell.
What is twice?
The smallest unit of biological structure that meets the functional requirements of “living” is the ________.
What is a cell?
Name an organelle present in both in eukaryotic and prokaryotic cells?
What are ribosomes?
Which characteristic of a phospholipid contributes to the fluidity of the membrane?
What are the double bonds in the fatty acid tail?
What is removed from pyruvate during its conversion into an acetyl group?
What is CO2?
Identical copies of chromatin held together by cohesin at the centromere are called _____.
What are sister chromatids?
The presence of a membrane-enclosed nucleus is a characteristic of ________.
What is a eukaryotic cell?
In humans, _____ are used to move a cell within its environment while _____ are used to move the environment relative to the cell.
What are flagella; cilia?
What is the primary function of carbohydrates attached to the exterior of cell membranes?
What is cell to cell recognition?
How many NADH molecules are produced on each turn of the citric acid cycle (Kreb’s cycle)?
The mitotic spindles arise from which cell structure?
What are the centromeres?
A person notices that her houseplants that are regularly exposed to music seem to grow more quickly than those in rooms with no music. As a result, she determines that plants grow better when exposed to music. This example most closely resembles which type of reasoning?
inductive reasoning
What is indicative reasoning?
In plant cells, the function of the lysosomes is carried out by __________.
What are vacuoles?
The principal force driving movement in diffusion is the __________.
What is concentration gradient?
Chemiosmosis involves ________.
What is the movement of electrons across the cell membrane?
Unpacking of chromosomes and the formation of a new nuclear envelope is a characteristic of which stage of mitosis?
What is telophase?
The process of ________ helps to ensure that a scientist’s research is original, significant, logical, and thorough
What is the process of peer review?
When viewing a specimen through a light microscope, scientists use ________ to distinguish the individual components.
What are special stains?
Many viruses enter host cells through receptor-mediated endocytosis. What is an advantage of this entry strategy?
What is the virus is protected from recognition by white blood cells?
This is a type fermentation method that can occur in animal skeletal muscles.
What is lactic acid fermentation?
At which of the cell-cycle checkpoints do external forces have the greatest influence?
What is G1?