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Midterm Wk 1-6

weeks 1-6 study questions - Sara Heravian

QuestionAnswer
What's the difference between electrical and chemical synapses? Electrical synapses occur at gap junctions and use action potentials; chemical synapses occur at a synaptic cleft and use neurotransmitters
What are the 3 general functions of skeletal muscles? Movement, heat production, and posture
Which positively charged ion is essential in the mechanism of muscle contraction? Calcium
Give 3 examples of long bones. Tibia, humerus, femur, radius, ulna, fibula, phalanges
What makes cartilage so unique? What are the 3 types? Cartilage has no blood vessels or canal system. The 3 types are: hyaline (tip of nose), fibrocartilage (pubis symphis), and elastic (ear).
Give 3 different examples of types of joints and specific bodily examples. Ball and socket - shoulder joint, hip joint Gliding - between vertebrae Saddle - thumb joint Hinge - elbow
Describe abduction and adduction. Abduction occurs when moving a body part away from the medial plane of the body, such as moving the leg straight out. Adduction is when the body part moves towards the medial plane of the body, like bringing your arms to your sides.
Describe flexion and extension. Flexion occurs when the angle between the bones decreases, like bending your knee. Extension occurs when the angle between the bones increases, like straightening your knee.
Give 2 examples of passive transport processes and 2 examples of active transport processes. Passive: osmosis, simple diffusion Active: Pumping, phagocytosis, exocytosis
Why are there only 23 sets of chromosomes in a gamete? What process results in this? There are only 23 sets due to gametes being haploid cells, so they can be fertilized and form a zygote with 46 chromosomes. Gametes are formed by the process of meiosis.
Where does transcription take place in the cell? Where does translation take place in the cell? Transcription - nucleus Translation - cytoplasm
Created by: sheravian
 

 



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