1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Margaret [11]
2 years ago
7

All substances that enter or leave a cell must cross the cell _____

Biology
2 answers:
pychu [463]2 years ago
8 0

Answer:

Cell membrane

Explanation:

Hope it helps

Fudgin [204]2 years ago
6 0

all substance that enter or leave a cell must cross the cell cells membrane

You might be interested in
Frozen water (ice) has less density than liquid water. How does this property of water affect life on Earth?
pav-90 [236]
This property of water affects life on Earth because it<span> floats on the surface, sustaining life at the bottom of lakes and oceans</span>
5 0
2 years ago
What type of carbohydrates does Class Trix cereal contain?
sergey [27]

Answer:

Trix cereal contains simple carbohydrates, which differ from complex carbohydrates in that they are easier for the body to break down. However, this is not necessarily a good thing. Simple carbohydrates are often too easy for the body to break down, resulting in a boost of energy, then a sugar crash. Try something like an apple or a banana instead, for a good source of complex carbs.

6 0
3 years ago
As a substance is eaten, trace its path through the digestive system. Include one of the basic processes each step of the way: d
VashaNatasha [74]

Answer:

....... motility

Explanation:

5 0
3 years ago
How do paleontologist learn about evolution ?
DanielleElmas [232]
Paleontologists can identify organisms that may be ancient relatives of those living today. By looking at fossils they can also suggest how these organisms lived together in an ancient habitat. Few organisms become fossilized because the circumstances that an organism has to be in is very specific.
8 0
3 years ago
Why is salivary amylase active for only an hour or so, whereas lingual lipase isn't active until reaching the stomach
leva [86]

Salivary amylase will be active for only an hour or so because the optimum pH for activity of amylase is about 6.7–7.0 which is available in the mouth but the pH of the stomach is acidic around 1-2 due to which the amylase enzyme becomes inactive in short-time.

The lingual lipase enzyme is present in the saliva but isn't active until reaching the stomach because this enzyme is acid stable and works efficiently in the stomach, not in the mouth.

Amylase enzyme is secreted in the mouth and is responsible for the breakdown of starch in food into sugars and it starts acting as soon as we put food in the mouth whereas Lingual lipase enzyme is secreted along with saliva but it is not active in the mouth rather its activity starts in the stomach which is responsible for the degradation of triacylglycerol molecules.

Learn more about enzymes here

brainly.com/question/17320375

#SPJ4

3 0
1 year ago
Other questions:
  • Critical thinking and problem solving are thinking skills learned in science classes. These skills are key in the pursuit of cre
    12·3 answers
  • The nurse observes a client in a group who is reminiscing about his past. which effect should the nurse expect reminiscing to ha
    9·1 answer
  • What is the definition of zygote??
    7·1 answer
  • What structure do all vertebrae embryos contain
    10·1 answer
  • During which if the following months is the sun likely to illuminate Earth equally from pole to Pole?
    6·1 answer
  • In what geologic era are we currently living
    9·1 answer
  • Which of the following do scientists think is responsible for climate change?
    15·2 answers
  • Which is happening when humans control the breeding of living things to favor certain desired features?
    7·1 answer
  • The type of cartilage that forms the long bones of the embryonic skeleton is:.
    10·1 answer
  • How might a clogged blood vessel affect the nervous system’s and the endocrine system’s abilities to deliver signals?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!