Human Biology
Milestone 1
1
Which of the following is a biological class?
Mammalia
Chordata
Animalia
Ursidae
CONCEPT
Organisms
2
Which statement is true?
In eukaryotic cells, DNA floats freely in the cytoplasm.
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Which of the following is a biological class? Mammalia Chordata Animalia Ursidae CONCEPT Organisms 2 Which statement is true? In eukaryotic cells, DNA floats freely in the cytoplasm. Prokaryotic cells don't have a plasma membrane. All cells have DNA. Prokaryotic cells don't have DNA. CONCEPT Cell Theory 3 Which is a component of cellular respiration? Glycolysis ATP breakdown Facilitated diffusion
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2023/2024
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Human BiologyMilestone 1 (^1) Which of the following is a biological class?
Mammalia Chordata Animalia Ursidae CONCEPTOrganisms (^2) Which statement is true?
In eukaryotic cells, DNA floats freely in the cytoplasm.
Prokaryotic cells don't have a plasma membrane. All cells have DNA. Prokaryotic cells don't have DNA. CONCEPTCell Theory (^3) Which is a component of cellular respiration?
Glycolysis ATP breakdown Facilitated diffusion
The largest byproduct of the electron transport chain is carbon dioxide. The electron transport chain is the second stage of cellular respiration. During the electron transport chain, a hydrogen gradient is produced that is used to produce ATP fromADP.
The electron transport chain produces 36 net molecules of ATP. CONCEPTElectron Transport Chain (^6) What type of lipid is made up of a glycerol molecule and three fatty acid side chains?
Sterol Triglyceride Saturated fat
Phospholipid CONCEPTLipids (^7) How many turns of the Krebs cycle are required to break down one molecule of glucose?
One Two Three Four CONCEPTKrebs Cycle (^8) At what level of protein structure do amino acid chains twist and fold?
It is a pocket in the cell's plasma membrane that houses DNA. CONCEPTNucleus (^10) What is the cytosol?
The protein structure that provides support to the cell A part of the plasma membrane between the two layers of phospholipids The liquid found inside the cytoplasm that is mostly composed of water A part of the cytoskeleton that helps anchor membrane proteins CONCEPTCytoplasm (^11) Which of the following statements is true?
Diffusion involves the movement of molecules using transport proteins. Diffusion involves the breaking down of dead organelles. Diffusion involves the movement of molecules into or out of a cell. Diffusion involves the movement of molecules in the cytoplasm. CONCEPTDiffusion (^12) Which set of statements is true concerning the plasma membrane?
It is primarily composed of cellular fiber and it controls what enters and leaves the nucleus. It is primarily composed of lipids and it keeps anything from entering or leaving the cell.
Which of the following statements is true? Glycolysis requires oxygen to happen. Glycolysis breaks a molecule of glucose into two phospholipids. Glycolysis occurs within the rough ER. Glycolysis has a net gain of two ATP. CONCEPTGlycolysis (^15) Which of the following describes a disaccharide?
It can have up to two sugar units. It has many sugar units.
It has no sugar units. It is also an oligosaccharide. CONCEPTCarbohydrates (^16) Which of the following is part of a nucleotide?
Proteins DNA Amino acid
Sugar
CONCEPTNucleic Acids
Enzymes are single-use proteins that must be regenerated after each reaction. Enzymes can only break down larger substances into smaller ones. CONCEPTEnzymes (^19) What molecules in the cell membrane help move molecules from a low to a high concentration gradient? Endocytosis Vesicles Transport proteins Diffusion pumps CONCEPT
Facilitated Diffusion 20 Which of the following is an example of an integrator working to maintain homeostasis? The brain processes information about blood calcium levels being too high and determines that calciumlevels need to be lowered.
The heart begins pumping faster if blood pressure drops too low. Muscle cells cause you to shiver in an attempt to raise your body temperature if it is too low. Thermoreceptors in your body detect a change in temperature when you walk into an air-conditionedbuilding. CONCEPTHomeostasis (^21) Select the statement that is TRUE regarding metabolism.
In catabolism, complex carbs, proteins and other molecules are disassembled.
CONCEPTOsmosis (^23) Chris is trying to determine whether the brand of coffee he drinks has an impact on his productivity. Which of the following could be his prediction? "I notice that I'm more productive on days when I drink Coffee A." "Based on many tests, I realize that Coffee A does not actually boost my productivity." "I predict that I'll be more productive on days when I drink Coffee A." "I propose that Coffee A somehow boosts my productivity." CONCEPTScientific Method
Sophia Human BiologyMilestone 3 (^1) Which of these is TRUE of a neuron at resting potential?
The neuron has more positive charges inside than outside. The neuron has more potassium ions inside than outside. Sodium-potassium pumps transport potassium ions out of the neuron. Sodium-potassium pumps transport sodium ions into the neuron. CONCEPTMembrane Potential and Action Potential (^2) Which structure of the ear monitors movement and equilibrium via its semicircular canals and two fluid- filled sacs? Tectorial membrane
Parietal lobe CONCEPTForebrain and Its Cerebrum (^4) What triggers an action potential?
A neurotransmitter An exciting signal An inhibiting signal A synapse CONCEPTNeurotransmitters (^5) What parts of the mouth contain taste receptors?
Tongue and throat Tongue and roof of the mouth Throat and roof of the mouth Tongue, throat and roof of the mouth CONCEPTSmell & Taste (^6) Parkinson’s disease is caused by.
the breakdown of neurons, affecting neurotransmitter production an injury to the spinal cord an injury in the peripheral nervous system