問題一覧
1
In positive feedback, the original stimulus is ________?
reinforced
2
Which of the following cell organelles is NOT correctly matched with its function?
Smooth ER-site of lipid synthesis
3
The function of the respiratoy system is to:
expand and collapse the lungs
4
Which body systems have control over all other body systems?
nervous system
5
The sperm cell is able to move (is motile) because of its:
active transport mechanisms
6
Which of these is an example of a positive-feedback mechanism?
Increased carbon dioxide in the blood increases breathing rate, which decreases carbon
7
Physiology is the study of
process or function of living things
8
The cell membrane is arranged in a special way. Which of these statements about the cell membrane is NOT true?
none
9
Which of these statements is true of negative feedback?
Negative feedback will usually result in illness or other disturbance of normal systems.
10
Positive-feedback mechanisms
are used to amplify the effect or response of a system.
11
Which of the following statements concerning solutes and solvents is true?
All of the choices are correct.
12
Which of the following statements is TRUE concerning the cell membrane?
Receptor molecules are embedded in the membrane for intercellular communication.
13
Is a specific type of endocytosis that is responsible for bringing liquids and small particles into cells throughformation of small vesicles formation of small vesicles.
Exocytosis
14
The kidneys, adrenal glands, pancreas, and urinary bladder are:
found in the peritoncal cavity
15
Osmosis is specifically the diffusion of ________ across a semi-permeable membrane
water
16
Homeostasis is the body's way of maintaining an imbalanced environment
true
17
Understanding the relationship between structure and function allows us to
all of these are correct
18
Which of these statements is true of negative feedback?
Negative feedback will usually result in illness or other disturbance of normal systems.
19
This body system provides protection, regulates temperature, and prevents water loss
cardiovascular system
20
This body system provides protection and support, allows body movements, and produces blood cells
muscular system
21
This body system transports nutrients, waste products, gases, and hormones throughout the body
endocrine system
22
This body system is a major regulatory system that detects sensations and controls physiological processes
nervous system
23
Match the following descriptions with the phases of the cell life cycle. Sister chromatid pairs line up in the middle of the cell
prophase
24
Match the following descriptions with the phases of the cell life cycle Sister chromatid pairs are visible and the nuclear envelope disappears
telophase
25
Match the following descriptions with the phases of the cell life cycle. A period of normal cell activity when the cell prepares to enter mitosis
interphase
26
Match the following descriptions with the phases of the cell life cycle. Two identical daughter cells are formed each with their own defined nucleus
anaphase
27
Match the following descriptions with the phases of the cell life cycle. Sister chromatid pairs separate and each one to the opposite ends of the cell
metaphase
28
You order unsweetened iced tea at a restaurant. You put two packets of sugar in your drink. What will happen if you do not stir the sugar into the tea?
the sugar molecules will move from an area of high concentration to an area of low concentration until it reaches equilibrium.
29
For a substance to be able to pass directly through the phospholipid bi-layer, it must be a ______molecule
water soluble
30
You leave out of your lecture class on a hot day. You are walking to your car and you start to sweat. Once you start notice that you are feeling a little cooler. This scenario would be an example of ______feedback.
negative
31
According to the fluid mosaic model of the cell membrane,
carbohydrates function as membrane channels.