A B FIG. 3.4 What is shown in the diagram?

How would a small, uncharged lipid move across the cell membrane?

ElenaW [278]

Answer:

Through simple diffusion, down the concentration gradient.

Explanation:

The phospholipids of the membrane are amphipathic with hydrophillic heads and hydrophobic tails. Other polar molecules cannot go through this hydrophobic interior. Since small uncharged lipids are non polar and hydrohobic, they are able to go through the membrane without the help of transport proteins. Therefore, the last two options can be ruled out because facilitated diffusion includes the use of a protein. Diffusion involves molecules moving down the concentration gradient so the second option can be ruled out.

5 0

3 years ago

Since ethnicity is not biologically fixed, self-identification with a particular ethnic group can change through what process?

Anuta_ua [19.1K]

Answer:

Situational Negotiation of Identity

Explanation:

when our claimed or perceived identity varies depending on the context. One among severally culturally distinct groups in a society or region; members share beliefs, values, habits, customs, and norms. You can be one thing or another depending on your setting Minority groups: subordinate groups in society.

7 0

4 years ago

Now consider a single base mutation in a codon for leucine that creates a codon for phenylalanine. A true reversion changes the

madam [21]

Answer:

options A, B, D and E

Explanation:

leucine codons include: UUA, UUG, CUU, CUC, CUA, CUG

phenylalanine codons include: UUU, UUC.

CUU

replace C with U to give

UUU phenylalanine codon

replace underlined with A

UUA leucine codon

CUC

replace underlined with U

UUC phenylalanine codon

replace underlined with A or G

UUA, UUG leucine codons

UUG

replace underlined with U

UUU phenylalanine codons

replace underlined with C

CUU leucine codon

UUA

replace underlined with U or C

UUU or UUC phenylalanine codons

replace U with C

CUU or CUC leucine codons

7 0

3 years ago

19. (03.06 HC)

murzikaleks [220]

1. B

2. It needs to be understood if this really affects the cow or the consumer in any negative way.

3. C but i'm not sure

4. The initial 2 aren't right. What's more, the third one is just valid if the therapeutic issue is y-connected so it's not ALWAYS. So that abandons you the last one, which bodes well on the grounds that the tyke gets qualities from the father too which impact it's wellbeing.

5. A but i'm not sure

6. A high degree of illegal drug use among young adults

7. C. Because everyone sneezing spreading their germs onto other because is obviously going to cause others to get sick.

8 0

3 years ago

Read 2 more answers

Which of the following is NOT a characteristic of the cortical nephrons?

REY [17]

Answer:

A. their nephron loop is closely wrapped with vasa recta

Explanation:

7 0

3 years ago