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Unit 1 Exam Review
Unit 1 Exam Review
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Answers
1
A protein is built up of sub-units called...
amino acids
saccharides
fatty acids
nucleotides
2
Which of these characteristics is not shared by members of the Kingdom Animalia?
Multicellular bodies
Autotrophic metabolism
Evolution
Response to stimuli
3
Which step can be found in both aerobic and anaerobic respiration?
Pyruvate oxidation
ETC and chemiosmosis
Kreb's cycle
Glycolysis
4
True or false: fermentation occurs in the mitochondria
True
False
5
What part of the cell cycle does a cell spend 90-95% of it life in?
Prophase
Interphase
Metaphase
Mitosis
6
Which part of respiration do aerobic and anaerobic
share
osmosis
glycolysis
the krebs cycle
the electron transport chain
7
A blood cell is placed in water. You notice the cell lyses. The water represents a __ solution.
Hypertonic
Hypotonic
Isotonic
8
True or False: sister chromatids are genetically identical
True
False
9
Which of these is NOT evidence for the endosymbiotic theory?
Nucleus
Mitochondrial DNA can be found in the nucleus of the cell
Mitochondria have a double membrane
Mitochondria replicate separately from the cell
10
what happens when a cell lacks oxygen?
enters krebs cycle
enters oxidative phosphorylation
the cell lyses
enters fermentation
11
Which intermediate is produced during pyruvate oxidation?
Oxaloacetic acid
Acetyl-CoA
ATP
Glucose
12
ATP is made by combining two parts to form one ATP molecule. This is a _________ reaction.
Endergonic
Exergonic
13
what occurs during anaphase?
chromosomes condense and are attached to microtubules
sister chromatids align at metaphase plate
sister chromatids split and are separated to opposite poles of the cell
two new nuclei are formed, organelles are split equally btwn daughter cells
14
Which of these is NOT a tenent of the modern cell theory?
All living organisms are made of cells
All cells arise from pre-existing cells
Hereditary information is passed from cell
DNA is the basic unit of life
15
a 2n = 16 cell undergoes mitosis. The parent cell will yield two daughter cells with how many chromosomes?
32
8
16
4
16
The plasma membrane of an animal cell does NOT contain __
Ribosomes
Proteins
Cholesterol
Carbohydrates
17
Which of these will successfully move through the phospholipid bilayer without aid?
A small, nonpolar, neutral charge hormone
A large starch molecule
A polar molecule of amino acid
A small, charged molecule of chlorine
18
lipids and proteins skip this step to produce ATP
Pyruvate oxidation
ETC and chemiosmosis
Kreb's cycle
Glycolysis
19
Which of the following is mitosis NOT performed for?
sperm and egg production
tissue repair
multicellular growth
asexual reproduction
20
A large molecule crosses the membrane through a transport protein from high to low concentration. This is an example of…
Osmosis
Facilitated diffusion
Active transport
Simple diffusion
21
which cell is in a
hypertonic
environment
B
C
A
22
put these in order from
SMALLEST to LARGEST
base, gene, chromosome, genome
base, genome, chromosome, gene
genome, base, gene, chromosome
genome, chromosome, gene, base
23
The totality of all chemical reactions needed to maintain life in cells is called ___
Activation energy
Metabolism
Chemical reactions
Entropy
24
__ ATP, __ NADH, and __ FADH2 are produced in ONE turn of the Krebs cycle
1; 2; 1
1; 3; 1
2; 6; 2
2; 2; 2
25
Which step of aerobic cellular respiration produces the most ATP?
Glycolysis
Kreb's cycle
ETC and chemiosmosis
Pyruvate oxidation
26
What is the
FINAL
electron acceptor in the electron transport chain?
ATP
Water
Oxygen
Carbon dioxide
27
Molecules store energy in their bonds. This is an example of __
Potential energy
Kinetic energy
28
Which of these is NOT a marine fish strategy to combat water loss?
Kidneys excrete dilute urine
Salt-secreting cells in the gills
Drink lots of seawater
Salt ions are excreted with feces
29
What process generations
BOTH
NADH and FADH
2
?
Pyruvate Oxidation
Krebs Cycle
Glycolysis
Electron Transport Chain
30
Which biomolecules can be broken down for energy in animals?
carbohydrates
lipids
all of these can be broken down for energy
proteins
31
enzymes ______ the _______ energy of a chemical reaction
decrease | activation
increase | activation
increase | chemical
decrease | chemical
32
The ETC moves H+ across the inner mitochondrial membrane AGAINST the gradient. This is an example of…
Osmosis
Active transport
Facilitated diffusion
Simple diffusion
33
Which organelle modifies, packages, and stores cell products?
Golgi apparatus
Lysosomes
Ribosomes
Nucleus
34
A clownfish's body is less saline than the ocean water around it. It lives in a __ environment
Hypertonic
Isotonic
Hypotonic
35
The most abundant biomolecule found in cells are __
Nucleic acid
Lipid
Protein
Carbohydrate
36
a substate will bind to the _______ site of an enzyme to be broken down
Inhibitor site
Active site
Activator site
Allosteric site
