Cell Structure and Function
In order to digest materials within a cell, the material to be digested must fuse with?
A lysosome
The plasma membrane is composed of?
Phospholipids and proteins
ATP contains?
An adenine base, a ribose sugar, and three phosphate groups
In semiconservative DNA replication, each new double helix formed will have?
One new strand and one old strand in each helix
If the diploid chromosome number is 16, the chromosome number of each gamete will be?
8
Which cellular structure is responsible for packaging materials with the cell?
Golgi Apparatus
Which condition must be met for diffusion to occur?
A concentration gradient
Enzymes are specific. This means that they?
Have a particular substrate
The function of transfer RNA is to?
Carry amino acids to ribosomes
In which stage of mitosis do the chromosomes line up in the center of the cell?
Metaphase
Proteins are processed and modified in the interior of the?
Rough Endoplasmic Reticulum
An isotonic solution means that the solute concentration outside the cell?
Is the same as the inside of the cell
The high energy bond in ATP that is used by cells is found in or between?
The phosphate groups
Which is the process that synthesizes mRNA?
Transcription
During what stage of mitosis does the nuclear envelope disappear and the chromosomes become distinct?
Prophase
Which of the following is NOT evidence supporting the endosymbiotic theory?
A. the vacuoles can "come and go" across the plasma membrane.
B. mitochondria and chloroplasts have their own DNA.
C. mitochondria and chloroplasts are nearly identical to some free-living prokaryotes.
D. mitochondria and chloroplasts divide by splitting.
A. the vacuoles can "come and go" across the plasma membrane.
When a substance moves from an area of low concentration to an area of high concentration while using energy, the process is termed?
Active transport
Which is NOT a correct attribute of a metabolic pathway?
A. A constant supply of new enzymes must be produced to keep the metabolic pathway active.
B. The product of one reaction can become the reactant for the next.
C. Reactants act as substrates for specific enzymes.
D. Reactants are the input molecules.
A. A constant supply of new enzymes must be produced to keep the metabolic pathway active.
The enzyme that reads the template strand and makes a complementary strand of DNA is?
DNA polymerase
During what stage of meiosis do sister chromatids separate from each other?
Anaphase II
Imagine starting in the innermost space of the chloroplast and moving outward until leaving the chloroplast and entering the cytoplasm. What starting point and proper order of things would you move through?
Thylakoid space - thylakoid membrane - stroma - inner membrane - outer membrane
What are the five different membrane proteins?
Channel protein, carrier protein, cell recognition protein, receptor protein, and enzymatic protein.
If an enzymatic reaction was controlled by feedback inhibition, we would expect it to stop when?
A critical level of product builds up
If the normal nucleotide sequence was TACGGCATG, what type of gene mutation is present if the resulting sequence becomes TAGGCATG?
A Deletion mutation
What lines up at the metaphase plate during metaphase II of meiosis and metaphase of mitosis?
Each chromosome, composed of two sister chromatids