42 Questions
Which of the following is NOT one of the basic physiological needs necessary to maintain homeostasis?
Light
What is the purpose of negative feedback in maintaining homeostasis?
To cause the opposite response
Which component of negative feedback analyzes the information and determines an appropriate response?
Control center
Which organelle is responsible for the formation of chromosomes and carries DNA and genetic information?
Nucleus
Where does transcription occur?
Nucleus
What is the function of epithelial tissue?
Protects the body surface
Which type of tissue produces heat?
Muscle tissue
Which term describes a body part that is closer to the point of attachment?
Proximal
Which of the following is a function of water in the body?
Serves as a solvent for chemical reactions
What is the main source of essential amino acids in the body?
Diet
Which mineral is important for conducting nerve impulses and muscle contraction?
Sodium
Which mineral is most often associated with healthy bones and teeth?
Calcium
What is the process of using fats as energy to maintain life called?
Beta oxidation
What is the building block of proteins?
Amino acids
What is the shape of DNA?
Double helix
Which type of enzymes add or remove phosphate groups?
Phosphorylases
What is the principal role of RNA?
Carrying instructions for protein synthesis
What is the function of tRNA?
Transporting amino acids to the ribosomes
What is the purpose of the spliceosome?
Removing introns from mRNA
Which tissue is responsible for communication between body parts?
Nervous tissue
Where can you find nonkeratinized stratified squamous epithelial tissue?
Surface of mucous membrane lining the mouth
Which type of epithelial tissue is found in the lining of the stomach, intestines, and uterus?
Simple columnar
Which mineral plays a role in blood clotting?
Calcium
Which process involves breaking down proteins into amino acids with hydrolysis?
Deamination
Which nucleotide base pairs with guanine in DNA?
Adenine
Which of the following is NOT a component of negative feedback?
Homeostasis
What is the main purpose of negative feedback in maintaining homeostasis?
To maintain a constant internal environment
What is the starting point for all descriptive terms that can be applied to the body?
Anatomical position
What is the role of acids in the body?
Acids help in digestion in the stomach
What is the function of water in the body?
Water serves as a solvent for chemical reactions
What is the main function of electrolytes in the body?
Electrolytes carry an electric charge
Which enzyme is responsible for binding RNA nucleotides to each other during transcription?
RNA polymerase
Where does the editing of mRNA occur?
Nucleus
What is the function of connective tissue?
Supports body structures
Which of the following is NOT a major type of RNA involved in protein synthesis?
snRNP
Which of the following is an example of an enzyme that rearranges atoms within a molecule?
Mutase
What is the role of dsRNA in gene silencing?
It participates in RNA interference
Which type of tissue lines the surface of the skin?
Epithelial tissue
Where can you find simple squamous epithelial tissue?
Alveoli of lungs
What is the function of ciliated pseudostratified columnar epithelial tissue?
Movement
Which type of epithelial tissue is found in the lining of the urinary bladder?
Transitional
Where can you find simple cuboidal epithelial tissue?
Kidney tubules
Test your knowledge on enzymes and their role in cell metabolism with this quiz! Learn about their structure, the lock and key model, and the classification and naming of enzymes. Discover how enzymes are catalysts and why not all catalysts are enzymes. Challenge yourself and see how well you understand this essential aspect of organic chemistry.
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