BIOS 195 Midterm

(TCO1) The level of organization in which different multiple types of tissues join together is called the

Answer: System Level

(TCO1) The process by which unspecialized cells become specialized cells is called

Answer: differentiation.

(TCO1) In a negative feedback control system, the response of the effector to a stimulus

Answer: reverses the original stimulus

(TCO1) Which of the following is an example of a positive feedback system in the human body?

Answer: Lactation

(TCO1) Baroreceptors in the feedback system that control blood pressure sense changes in

Answer: the force of blood as it presses against the walls of blood vessels.

(TCO2) _____ is an example of an element.

Answer: Carbon

(TCO2) All atoms of an element have the same number of _____.

Answer: protons

(TCO2) Isotopes of an element have the same number of _____ and different numbers of _____.

Answer: protons; neutrons

(TCO2) The first electron shell of an atom can hold a maximum of _____ electron(s).

Answer:2

(TCO2) The bond between oppositely charged ions is a(n) _____ bond.

Answer: Ionic

(TCO3) Endocytosis is an example of

Answer: active transport.

(TCO3) Which of the following is necessary for simple diffusion to take place?

Answer: A concentration gradient

(TCO3) Chromatin is found in the

Answer: Nucleus

(TCO3) Which of the following organelles are commonly referred to as the powerhouses of a cell?

Answer: Mitochondria

(TCO3) The human somatic cells contain _____ chromosomes.

Answer: 46

(TCO3) The protein synthesis process called translation requires

Answer: ribosomes.

(TCO4) Which of the following is NOT an enzyme used to digest carbohydrates?

Answer: Enterokinase

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