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3 years ago

Select all of the following that describe passive transport

Biology

1 answer:

SashulF [63]3 years ago

7 0

The correct statements that describe passive transport are:

A. the process of moving substances from high to low concentration
E. move substances with or down the concentration gradient
F. no energy is used in transport
G. The end result is a dynamic equilibrium of substances on both sides of the cell membrane.

Passive transport is defined as the movement of a solute from a region of high concentration area or electrochemical potential on one side of the cell membrane to a region of lower concentration or electrochemical potential on the opposite side.

Passive transport does not require energy input
The movement of molecules from an area of high concentration to an area of low concentration.
movement is down the concentration gradient
movement is continuous until it reaches the dynamic equilibrium of substances on both sides of the cell membrane
Diffusion and osmosis are examples of this transport.

Thus, the correct options are - A, E, F, and G.

Learn more about osmosis:

brainly.com/question/13655668

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This control of the internal environment is called homeostasis, and can be observed through the ____________ range of the body's

Semenov [28]

Answer: "homeostatic (dynamic equilibrium) range"

Homeostasis can be observed through the "homeostatic range (pre-set limits)" of the body's pH, temperature and blood glucose.

Explanation:

Homeostasis is the control of internal environment , physical and chemical conditions maintained by the living systems. A body takes control of its internal environment in spite of external forces interruptions. It can be defined as the body's defensive mechanisms.

Homeostasis is maintained and controlled by the nervous system.

Homeostasis is for optimal functioning of the internal environment such as body pH, body temperature, fluid balance, chemical ions balance (calcium, sodium and potassium) and blood glucose.

Body temperature is normally about 37.5° C (98.6° F).

Salt concentration in body fluids is normally about 0.9%

Blood glucose is normally about 10 mg/ml.

A disturbed (imbalanced body as a result of external forces) body regains its haemostasis balance by

Activating reflexes that fight the disturbance and maintaining behaviours to counteract the disturbance.

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3 years ago

The sheets of peritoneal membrane that hold the digestive tract in place are called ________. the sheets of peritoneal membrane

kotegsom [21]

They are called the mesenteries. They are also called the mesenterium, they are peritoneal fold attaching to the small intestine to the dorsal body wall.In humans it wraps around the pancreas and the small intestine and extensions down around the colon and the upper portion of the rectum. Their function is to anchor the small intestine to the walls of the abdominal walls.

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3 years ago

A researcher had 15 purebred wikl mice which were brown and all females, they were all mated with a male called Bob, All offspri

cestrela7 [59]

Complete question:

A researcher had 15 pure-bred wild mice which were brown and all were females. They were all mated with a male called Bob. All the offspring were brown. These were then crossed among themselves with the following results: 293 brown and 115 white.

(i). Determine the color of Bob.

(ii). Determine which color is dominant.

(iii). Work out the ratio of brown to white in the ‘grandchildren.’

(iv). If the researcher crosses two of the white 'grandchildren', determine the color of their offspring.

Use the Punnett square to work out your answers

Answer:

(i). Determine the color of Bob. BOB IS WHITE

(ii). Determine which color is dominant. BROWN IS DOMINANT

(iii). Work out the ratio of brown to white in the ‘grandchildren.’

PHENOTYPIC RATIO BROWN TO WHITE 3:1

(iv). If the researcher crosses two of the white 'grandchildren', determine the color of their offspring. THE WHOLE PROGENY WILL BE WHITE

Explanation:

Due to technical problems, you will find the complete question, answer, and explanation in the attached files.

Download pdf

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