Cell Basics
Cell Growth
DNA Structure
Populations
Random Q's
100
The part of the cell that manages and controls all functions of the cell.
Nucleus
100

What model does DNA follow for replication?

Semi-conservative

100

Purines are larger double ring structures, which two bases are purines?

Adenine and Guanine

100
Living and nonliving factors in an environment are called...
Biotic and abiotic
100

One or more electrons between molecules are shared in the valence shell.

A covalent bond

200
These are specialized structures within a cell that perform specific functions.
Organelles
200

The goal of cellular respiration and photosynthesis is...

to generate usable energy (ATP) 

200

__________________ is a three-nucleotide sequence on messenger RNA that codes for a single amino acid.

A codon

200
This describes the maximum number of one type of organism that a given ecosystem can support.
Carrying capacity
200

This is the process by which a small effect is amplified.

A positive feedback system.

300
One way to categorize organisms is based on how many cells they have. Organisms that are made of only one cell are unicellular, whereas this describes organisms that are made of many cells.
Multicellular
300

The four stages of cellular respiration are...

Glycolysis, pyruvate oxidation, Krebs cycle, ETC

300

Which two parts of a nucleotide make up the backbone of a DNA molecule?

the sugar and phosphate

300
A limiting factor that has a greater impact when the population is larger is called... Disease is an example.
Density-dependent
300

The total energy of an isolated system is constant, it can be neither created nor destroyed, only transferred. What is this theory?

The first law of thermodynamics

400
This type of cell contains membrane-bound organelles. Some unicellular and all multicellular organisms are made of these.
Eukaryotic
400

How much ATP is generated in cellular respiration compared to fermentation?

Cellular respiration - approx. 30

Fermentation - 2 from glycolysis

400

When a permanent change to DNA occurs, what is it called?

A mutation

400

__________ is the potential for a species to produce offspring in a lifetime.

Fecundity

400

Its functions include transport, enzymatic activity, triggering signals, and attachment and recognition of molecules.

Proteins

500
This type of cell contains no membrane-bound organelles, including no nucleus. All unicellular organisms are this kind.
Prokaryotic
500

What are the final electron acceptors in cellular respiration and photosynthesis?

Cellular respiration - oxygen

Photosynthesis - NADP+

500

Genes contain the codes for the ribosomes to make...

Proteins

500
A flood would be an example of this kind of limiting factor.
Density-independent
500

In this stage that is conducted in the cytosol, enzymes are used to break down glucose into two pyruvates.

Glycolysis
M
e
n
u